Solving these equations can prove to be tricky, but once you understand them, ridiculously easy! Remember: your goal is to reduce it to (variable=number). Make sure to use opposite operations to cancel out numbers, and don't forget what you do to one side you must do to the next. There isn't one true order, but you'll know you have a great understanding of what you're doing if you can solve it numerous different times and wind up with the same result!
Set up the equation!
[tex]4a-6=-2+14[/tex]
Let's try subtracting 14 from both sides! We must do the opposite operation to cancel it out.
[tex]14-14=0\\-6-14= -20[/tex]
Now we have
[tex]4a-20=-2[/tex]
We have to start on the left side now, because we can't have an equation with one blank side. The number you start with will end up getting canceled out, as 0. How about we add 20 to both sides?
[tex]-20+20=0\\-2+20=18[/tex]
Now we have
[tex]4a=18[/tex]
Next, we have to apply the opposite opperation to both sides. The only opperation left is multiplication (4a). Therefore, we need to divide by 4, because we have to isolate a.
[tex]4a/4=a\\18/4=4.5[/tex]
Now we have
[tex]a=4.5[/tex]
Your answer is a=4.5!
Remember: Combine like terms first, it's much easier!
Please let me know if this helped or if you have questions, and if you can, I'd be so grateful to receive a rating! Two-sided equations took me a long time, so I want to help you understand!
A dvd movie originally cost $24.99. It’s current price is $19.99. What is the percent of change rounded to the nearest percent?
Answer:
I think it would be 20%.
Step-by-step explanation:
$5 was taken off the original price, which is about 1/5 of $24.99. So, since 1/5 as a percent is 20%, I think the answer would be 20%.
Han is hiring laborers to cut down and remove 8 large trees from his
lot. Company A charges a flat rate of $1,000 for one full day of work
with 4 laborers. They guarantee the work will be done in 1 day or
additional days will be free. Company B charges a flat equipment fee
per day of $200. plus $90 per tree. They do not guarantee the work will
be done in 1 day. Which company should Han choose? Why?
please help me
company a
Step-by-step explanation:
if the work for company b takes more than two days is gonna be more than 1,000 dollars and if he pick company a he would owe 1,000 no matter how many days it takes
A bicycle shop is selling $500.00 bikes. If the sales tax is 7%, what will the final cost of the bike be?
Answer:
The final cost of bike = $535.00Step-by-step explanation:
Cost of bikes = $500.00
If the sales tax is 7%, the amount paid as tax will be 7% of the total selling price of bike;
7% of $500.00
= [tex]\frac{7}{100} * 500\\[/tex]
= $35
The final cost of bike = initial selling price + amount paid as tax
The final cost of bike = $500.00 + $35.00
The final cost of bike = $535.00
Paula invited some friends to dinner and she plans to make fajitas at the grocery store she spent $2.56 on red bell peppers and $1.92 on green bell pepper if both types of bell peppers cost $1.60 per pound how many total pounds of bell pepper does she buy
Answer: 2.8
Step-by-step explanation:
Given Data:
Money spent by Paula for red bell peppers = $2.56
Money spent by Paula on green bell peppers = $1.92
Both pepper cost = $1.60/ pound
Therefore:
Total pounds of bell peppers bought by Paula
= cost of green bell pepper + red red bell pepper / price/pound
= $2.56 + $1.92 / $1.60
= $4.48 / $1.60
= 2.8 pounds
Paula bought 2.8pounds of pepper
Answer:
2.8
Step-by-step explanation:
Can anybody find the measure of angle LMP as well as the measure of arc MN? Im lost...
click on image for full picture
Answer:
96 degrees
Step-by-step explanation:
When finding the arc from a non central angle, multiply it by 2
Eduardo is filling containers with water to make lemonade. He filled 4 containers in 29 minutes, and each container holds 8.7 gallons. At what rate did Eduardo fill the containers?
Answer: 7.25 minutes per container.
Step-by-step explanation:
Your looking for a ratio of time per container. 29/4 is the given ratio it was simplified to 7.25/1. Or simply 29 divided my 4.
how many grams each of a 10% salt solution and a 5% salt solution must be mixed in order to obtain 400g of an 8% solution?
I dont want to give you the exact equation so u wont be copying- here is an example.
let x=grams of salt that you already have
let y=grams of salt that need to be added
let z=total amount of salt in the solution after adding salt
We know that salt makes up 25% of the 400g solution, and that 25% can also be written as .25. Thus, we can write an equation to determine x's value:
x=.25*400g
x=100g
Therefore, there are 100 grams of salt already in the solution.
Now that we've determined x's value, we'll bring z into the equation. There are two ways to calculate z. z is equivalent to the sum of x and y. Remember, x is equal to 100 grams. So, z's equation is as follows:
z=100g+y
The other way to calculate z is as a percentage of the final solution. As the question states, we want the final solution to have a salt content of 40% (which we can write as .40). The final amount of solution can be written as below:
400g+y=total amount of solution after adding salt.
This is because we are adding y (the amount of salt needed to bring the salt content to 40 percent)to the amount of solution which we already have.
Therefore, the second way to express z is below:
z=.40*(400g+y)
After we have two equations for z, we can set them equal to each other as follows:
100g+y=.40*(400g+y)
We then can distribute the .40 over the parenthesis.
100g+y=160g+.40y
And then we can subtract 100 grams from both sides of the equation.
y=60g+.40y
Next, we subtract .40 y from both sides of the equation to get y on one side.
.6y=60g
Finally, we can divide both sides by .6 to isolate y.
y=100g
Therefore, you must add 100g of salt to the solution to make it 40 percent salt.
DID I DO IT RIGHTT?? pls tell me
what is 2x+3=x+15 100 points i don't want points
anewr
you could caluta
Step-by-step explanation:
Answer:
X = 12
Step-by-step explanation:
2x + 3 = x + 15
2x + 3 = x = -3
-3 + 15 = 12
So X = 12
Hope I helped!
Have a good day. =)
Please help!!!!!!!
Anyone help!
x=7
Step-by-step explanation:
median is the middle no.=6 and x
it will be 6+x=13
take 6 to the other side=7, hence x=7
Need question help here!
Answer:
C
Step-by-step explanation:
16x^4y^2(9x^3y^4) fully simply
Answer:
[tex]=144x^7y^6[/tex]
Step-by-step explanation:
[tex]16x^4y^2\left(9x^3y^4\right)\\\mathrm{Apply\:exponent\:rule}:\quad \:a^b\cdot \:a^c=a^{b+c}\\x^4x^3=\:x^{4+3}\\=16y^2\cdot \:9x^{4+3}y^4\\\mathrm{Add\:the\:numbers:}\:4+3=7\\=16y^2\cdot \:9x^7y^4\\\mathrm{Apply\:exponent\:rule}:\quad \:a^b\cdot \:a^c=a^{b+c}\\y^2y^4=\:y^{2+4}\\=16\cdot \:9x^7y^{2+4}\\\mathrm{Add\:the\:numbers:}\:2+4=6\\=16\cdot \:9x^7y^6\\\mathrm{Multiply\:the\:numbers:}\:16\cdot \:9=144\\=144x^7y^6[/tex]
Answer:
Step-by-step explanation:
2 x(4−3xy^2)/y
The equation for the pH of a substance is pH = -log[H+), where H+ is the concentration of hydrogen ions.
What is the approximate pH of a solution if the concentration of hydrogen ions is 5.0 x 104 moles per
liter?
2.7
3.0
3.3
3.6
Answer:
3.3 :)
Step-by-step explanation:
Answer:
3.3
Step-by-step explanation:
edge 2021
Monica put 1 L, 2 centiliters, and 7 milliliters of water into a bowl. how many milliliters of water did she put in the bowl?
Answer:
1,027 milliliters
Step-by-step explanation:
1 liter is 1,000 milliliters
2 centiliters is 20 milliliters
7 milliliters stays the same
Adding up the new numbers gives you
1,000+20+7
Need help ASAP. WILL MARK BRAINLIEST.
Answer:
2, 18, 56.52, It will double as well.
Step-by-step explanation:
First, multiply the radius by 9 to get the diameter, 18 inches. Then, multiply the diameter by 3.14(an approximation for pi) to get a circumference of about 56.52 inches.
If the diameter is doubled what happens to the circumference? Explain.
It will double because its like a second layer is added on, and 56.52 x 2 = 113.04, which would be the doubled circumference.
Hope this helps! :)
find the degree of the monomial x^2 z^3
Answer:
5
Step-by-step explanation:
Degree of monomial = 2 + 3 = 5
Hi there! I need some help with this question, thx!
In the table, Pattern A uses the rule "add 5" and Pattern B uses the rule "add 15."
Pattern A is 0, 5, 10, 15, 20
Pattern B is 0, 15, 30, 45, 60
Which statement is true?
A. Every term in Pattern B is 3 times the corresponding term in Pattern A.
B. Every term in Pattern B is 10 more than the corresponding term in Pattern A.
C. Every term in Pattern B is 5 times the corresponding term in Pattern A.
D. Every term in Pattern B is 13 the corresponding term in Pattern A.
Answer:
sky im going with A
Step-by-step explanation:
At the end of a snow storm, Caroline saw there was a lot of snow on her front lawn. The temperature increased and the snow began to melt at a steady rate. The depth of snow on Caroline's lawn, in inches, can be modeled by the function S(t)=-0.75t+15,S(t)=−0.75t+15, where tt is the time, in hours, after the snow stopped falling. What is the slope of the function and what is its interpretation in the context of the problem?
Answer:
-15
Step-by-step explanation:
I need help plz help me
Answer: 2538
Step-by-step explanation:
12*21/2
126
126/1*41/2
2538
Answer:
l*b*h=2583m²
Step-by-step explanation:
note no need units, so no need metre square or m²
PLEASE HELP!!! 50 POINTS ILL GIVE BRAINLIEST TO FIRST CORRECT ANSWER!!
Answer:
[tex] \red{\bold {7x - 9y - 39 = 0}} [/tex]
Step-by-step explanation:
Line passes through the points
[tex] (3, \: - 2) =(x_1, \: y_1) \:\&\: (-6,\: - 9)= (x_2, \: y_2)[/tex]
Equation of line in two point form is given as:
[tex] \frac{y-y_1}{y_1-y_2} = \frac{x-x_1}{x_1-x_2} \\\\
\frac{y-(-2)}{-2-(-9)} = \frac{x-3}{3-(-6)} \\\\
\frac{y+2}{-2+9} = \frac{x-3}{3+6} \\\\
\frac{y+2}{7} = \frac{x-3}{9} \\\\
9(y+2) = 7 (x - 3)\\\\
9y + 18 = 7x - 21\\\\
7x - 9y - 21 - 18 = 0\\\\
\huge \purple {\boxed {7x - 9y - 39 = 0}} [/tex]
secant zv interscts secant zw at point z find the length of tw
Answer:
MN ;K ;K ;K ;K
Step-by-step explanation:
I am not sure if this is right can someone check it ASAP please
Answer:
x=10
Step-by-step explanation:
3(4x-12) = 84
Divide each side by 3
3/3(4x-12) = 84/3
4x-12 =28
Add 12 to each side
4x-12+12 = 28+12
4x= 40
Divide each side by 4
4x/4 = 40/4
x = 10
Mario está aprendiendo a manejar un auto. El lunes 6 de abril ,el práctico 2 horas y cada día siguiente práctico 30 minutos más que el día anterior. ¿Cual fue la fecha del día que práctico 5 horas?
Answer:
Domingo 12 de abril
Step-by-step explanatio
El primer dia Lunes fueron 2 horas Martes fueron 30 munitos mas, ya son 2:30 Miercoles fueron otros 30 minutos mas, son 3 horas. Jueves y Vierns es una hora mas, porque cada dia es 30 minutos. que ya son 4 horas. y el sabado son 30 mas, y el domingo el practica 5 horas
Maria lines up fabric squares in rows to make a quilt. She uses the same repeating pattern for all the rows. The rule is "Red, White, Blue, White, Floral." If there are 125 quilt squares in the quilt, how many floral quilt squares will Maria need? Enter your answer in the box.
Answer: 15
Step-by-step explanation:
the patern is
red
white
blue
white
floral.
So in each group of 5, we have one floral quilt square.
now, in 125 quilt squares, we want to find the number of groups of 5 that we can make with thos 125 quilt squares.
This is 125/5 = 15
So we have 15 groups of 5 quilt square.
And we know that in each of those groups, we have one floral quilt square.
So we have a total of 15*1 = 15 floral quilt squars.
Answer: 25
Step-by-step explanation: 125 quilt square in group of 5
125/5 = 25
Each group of 5 os 1 floral quilt so there are 25 floral quilts in total
Which expression is equivalent to 2(5 − 3x)?
Answer:
10-6x
Step-by-step explanation:
Hope this helped, have a great day! (mark brainliest if you want to help XD)
Answer:
10 - 6x
as 2 x 5= 10
and 2 x 3 = 6
10 - 6x
Step-by-step explanation:
what’s the answer for this question
Answer:
What is the perimeter? 89 cm
Step-by-step explanation:
(35.2 + 11.9) + (35.2 + 12.7)
= 47.1 + 47.9
= 89 cm
The two-way table of column relative frequencies below shows data on whether or not a person has internet access and their preferred method to communicate with friends.
Based on the data, which of the following statements must be true?
(Choice A)
A person who prefers to communicate with friends in person is more likely to have no internet access than to have internet access.
(Choice B)
A person with internet access is more likely than a person without internet access to prefer the wired telephone to communicate with their friends.
(Choice C)
A person with internet access is more likely than a person without internet access to prefer text messaging to communicate with their friends.
(Choice D)
More people without internet access prefer using social networking than people with internet access.
Answer: c
Step-by-step explanation: 54% of people with internet access prefer text messaging, while only 31% of people without internet access prefer text messaging.
Based on the data, Option (c) statements must be true. "A person with internet access is more likely than a person without internet access to prefer text messaging to communicate with their friends."
What is internet speed?It is Mbps or kbps of data packets that can be transferred within a specified time.
Because 54% of the people who have internet access uses the text messaging method While 31 % people with no internet access uses the text messaging method.Thus A person with internet access is more likely than a person without internet access to prefer text messaging to communicate with their friends.Learn more about internet speed,
https://brainly.com/question/13308791
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6) Troy has a garden that is 17 feet by 14 feet. He is planning on planting some
bulbs in the garden. Each bulb requires 2 square feet of space. How many bulbs
can Troy plant in the garden? *
119
Answer:
140
Step-by-step explanation:
first multiply 17 by 14 to get 238 then dived 238 by 2 to get 140
True or False: Sine is the ratio of opposite side to adjacent side in a right triangle? *
Answer:
The ratio of the adjacent side of a right triangle to the hypotenuse is called the cosine and given the symbol cos. Finally, the ratio of the opposite side to the adjacent side is called the tangent and given the symbol tan.
2x-y<5
[tex]2x - y \leqslant 5[/tex]
Answer:
Step-by-step explanation:
Please be sure to include the directions when you post a question. I will assume you want to graph this inequality 2x - y ≤ 5.
2x - y = 5 is a linear function whose graph is that of a straight line. Because of the ≤ sign, the solution set includes all points on this straight line PLUS all points below it.
x - intercept: Set y = 0 in 2x - y = 5 and solve the resulting equation for x:
2x - 0 = 5. Then x = 5/2, and the x-intercept is (5/2, 0).
y-intercept: Set x = 0 and solve for y: 2(0) - y = 5: y = -5. Then the y-intercept is (0, -5).
Plot both points (5/2, 0) and (0, -5). Draw a solid line through them. Shade the area BELOW this line.
Which are ways to decompose the composite figure into simpler shapes that you have area formulas for? Check all that apply.
Answer:
1st and second, unless you have already learned area of trapezoids. If you have, add third
Step-by-step explanation:
Answer: this is ez its
first
second
third
Step-by-step explanation:
