Answer:
4x + 6y > 120
Step-by-step explanation:
i got the same question on my midterm exam.
I NEED HELP ASAP PLZZZZZZZZ 20 POINTS AND BRAINLY
A chemistry teacher needs to make a 42% sulphuric acid solution. The acid solutions available are 4 liters of 30% sulphuric acid and 50% sulphuric acid, by volume. How many liters of the 50% sulphuric acid solution must be mixed with the 4 liters in order to make the 42% sulphuric acid solution?
Answer:
4 liters of 30% and 6 liters of 50% acid.
Step-by-step explanation:
Let the volume of 30% acid be x, then the volume of 50% acid will be
(10 - x) liters.
So we have the equation:
0.30x + 0.50(10 - x) = 0.42* 10
0.30x + 5 - 0.50x = 4.2
0.80 = 0.20x
x = 4 liters.
So we need 4 liters of 30% acid and 6 liters of 50% acid.
Please help me with this. Do NOT steal the points because you need them, I will report you and brainly MIGHT take the points away.
Answer:
I'm pretty sure it a
Step-by-step explanation:
I'm super sorry if I'm wrong
Which equation represents the relationship between the x-values and y-values in the graph?
The equation of line passes through the points (0, -5) and (5, -2) will be;
⇒ y = 3x/5 - 5
What is Equation of line?
The equation of line in point-slope form passing through the points
(x₁ , y₁) and (x₂, y₂) with slope m is defined as;
⇒ y - y₁ = m (x - x₁)
Where, m = (y₂ - y₁) / (x₂ - x₁)
Given that;
Two points on the line are (0, -5) and (5, -2).
Now,
Since, The equation of line passes through the points (0, -5) and (5, -2).
So, We need to find the slope of the line.
Hence, Slope of the line is,
m = (y₂ - y₁) / (x₂ - x₁)
m = (- 2 - (-5)) / (5 - 0)
m = 3 / 5
m = 3/5
Thus, The equation of line with slope 3/5 is,
⇒ y - (-5)= 3/5 (x - 0)
⇒ y + 5 = 3x/5
⇒ y = 3x/5 - 5
Thus, The equation of line passes through the points (0, -5) and (5, -2) will be;
⇒ y = 3x/5 - 5
Learn more about the equation of line visit:
https://brainly.com/question/18831322
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Help!!! I struggle at these kinds of things, will mark as brainliest if both answers are solved!! Tysm!
Answer:
-56
-0.3
Step-by-step explanation:
Answer:
if they didnt give what x is you just do the numbers but since you cant take 78 from 7 i cant answer that one
Step-by-step explanation:
A raised gardening bed contains 252 cubic feet of dirt. The bed is 6 feet wide and 8 feet long. How deep is the dirt?
Answer:
First of all I love your profile picture!
Step-by-step explanation:
l*w*h=252
252/6=42
42/8=5.25
So the gardening bed is 5.25 feet deep...
Hope this helps and Merry early Christmas!
Answer: 5.25 feet deep
Step-by-step explanation: multiply 6 × 8 to get 48, divide 48 from 252 to get 5.25
What value of x makes the equation true
Answer:
A
Step-by-step explanation:
The equation in simple terms is 3x+2=-2x+6. This is because there are 3 triangles with x in them and 2 squares with 1 in them on the left side, and 2 triangles with -x on the right side with 6 1's. If you don't know how to solve this I'd be happy to go in full depth: subtract 2 from 6, subtract -2x from 3x this will give you 5x=4 and then you divide 5 from for giving you 4/5 or 0.8.
i swear the last one
Answer:
I'm a bit confused myself
Answer:
ghjfhj
Step-by-step explanation:
mb ,jv,
Solve 3x < 39. please
Answer:
x < 13
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Define
3x < 39
Step 2: Solve for x
Divide 3 on both sides: x < 13Here we see that any value x smaller than 13 would work as solution to the inequality.
5897/456=? AND BRO!!! WHAT!?!? THEY DELETED 2 OF MY QUESTIONS!!!!!!!!!!! Do you think anime will cheer me up? Yeahhh...
Answer:
12.9320175439
hope it helps
and yes.
Answer:
That sucks do u know why
Step-by-step explanation:
The record hgh temperature for Detroit, Michigan was 99° F. The record low was - 27 degrees F. What is the difference between these two temperatures?
Answer:
126
Step-by-step explanation: Add 99+27 to get a total difference of 126.
Complete the sentence and answer the question.
This graph has [strong,weak,no] linear association.
What type of correlation is shown in the graph?
[positive,negative,none]
i will give brainliest on who answers first!
Answer:
weak and negative edge 2020
Step-by-step explanation:
Answer:
B: weak
B: negative
Step-by-step explanation:
edg2021
Petra is participating in a program where she takes surveys. The table below shows the number of questions she took each day. Which scatter plot matches the table?
A. X
B. Z
C. Y
D. W
Answer:
x I believe
Step-by-step explanation:
while taking attendance Miss Ali notices 2 out of her 25 students were absent. what percent of her students are abesnt?
please help me with this question.
NEED HELP ASAP (please and thank you)
Answer:
800
Step-by-step explanation:
i dont know how to explain. i just did the math. hope this helps.
it wouldnt be 600 because thats 1/2 of 1200 not 2/3.
Answer:800
i put it wrong at first but its 800
The distance on a map between a student’s house and her job is 6 cm. On the same map, the distance between her house and her school 8 cm. The actual distance from her house to school is 12 km. If d represents the approximate distance in km between her house and her job, what is d?
A.4
B.9
C.48
D.16
Answer:it B I think
Step-by-step explanation:
I’m not sure though.
Liz and Rick are squeezing lemons for a lemonade stand. Liz squeezed 18 lemons in 6 minutes. Rick squeezed 24 lemons in 12 minutes. Who squeezed lemons at a faster pace? ⇒
Answer:
Liz
Liz because when having the same common denominator,
Liz=2/6 and Rick=3/6
So, I would go with Liz.
Emile wants to earn $100. She picks blueberries and is paid x dollars a bucket. She averages 4 buckets per day, and she has already picked blueberries for 5 days.
Which of the following expression represents how much more money she needs to earn to meet her goal?
A. 20x
B. 80x
C. 20(5 - x)
D. 20(5d-1)
Answer:
B. 80x
Step-by-step explanation:
If she has already picked bluberries for 5 days and averages 4 buckets a day. She would already have have 20 dollars
I need help!! just say which options would match the graph!
Answer:
#2 im purty sure
Step-by-step explanation:
Answer:it’s 2
Step-by-step explanation:
What is the slope-intercept form of the function described by this table?
x 1 2 3 4
y −2 −6 −10 −14
Enter your answers by filling in the boxes.
y = ? x + ?
Answer:
The answer is y = -4x + 2
Step-by-step explanation:
you're welcome
Kino bought a pizza for $12 and four medium drinks at Mariano's Pizza. Use n as a variable and write an expression to represent the total amount of money she spent
Answer:
12p + 4d = n
Explanation:
p stands for pizza, d for drinks. And the unknown amount of money spent here is represented by n.
p + d will be our total, that's why it is addition.
Answer: Give brainlest and like an give stars cuz this is correct .
Step-by-step explanation:
a = cost of 1 drink $12.75 + 4a $12.75 + $12.00 = $24.75
you could do this one tooo let x represent cost of soda
y = 4x + 12.75
and if you put the three dollars into x
y = 12 + 12.75
so y = 24.75
thank you have a nice say
Which situation can be modeled by the equation 45−2.50x=11.50?
A stock with an original value of $45.00 decreases by $2.50 each week. After how many weeks, x, is the stock worth $11.50?
Cassie deposits $45.00 into a savings account with an annual interest rate of 2.50%. After how many years, x, will Cassie have $11.50 in interest?
The cost to pick apples is $2.50 plus $11.50 per pound of apples picked. How many pounds of apples, x, can be picked for $45.00?
Adam has $2.50 in his bank account. He deposits $11.50 into the account each month. After how many months, x, will Adam have $45.00?
Answer:
I think either A or D. not sure tho. sry!
5.
What are the slope and the y-intercept of the graph of the linear function shown on the grid?
Answer:
C
Step-by-step explanation:
Slope=rise/run
Y intercept is the where the line hits the y axis which is -1.5
Answer:
Slope: -1/4
y-intercept: -1.5
Step-by-step explanation:
First you do rise over run meaning you from the point (-2,2) you rise up 2 to reach the x axis which is where point -6,0 so you rise 2 points and run 6. since the line is negative it becomes -1/4 and y-intercept is where the line first touches the y-line which is -1.5. I hop this helps!
Margie’s vegetable garden contains cucumbers, corn, potatoes, and tomatoes. About 25 of the garden consists of potatoes. What percent of the vegetables in Margie’s garden are NOT potatoes?
Answer:
75%
Step-by-step explanation:
25% are potatoes
100%-25%=75%
(Hope this helps!)
Answer: I think the answer is 75%
Step-by-step explanation:
Tell me if I’m wrong.
Solve:
13/19 - (-1/19)
A. -12/19
B. -14/19
C. 14/19
D. 12/19
Answer:
c.14/19
Step-by-step explanation:
because math exists
Answer:
C
Step-by-step explanation:Any time you have a subtraction and a negitive right next to eachother, it means to add. So, you would add 13 and 1 to get 14, then keep the denominator 19 to get 14/19.
On a hot day, a football team drank an entire 50-gallon cooler of water and half as much again. How much water did they drink?
Group of answer choices
Answer:
75
Step-by-step explanation: Simple. 50/2=25, 25+50=75.
Answer:
75 gallons
Step-by-step explanation:
50+50/2=75
Answer these 6 questions today. Don´t forget to show the work as well!!
Please explain your answer will give brainliest
Answer:
13
Step-by-step explanation:
180-167
Answer: B - 13
Step-by-step explanation:
180-167 = 13
180-124 = 56
56+13 = 69
180-69 = 111
56+111 = 167
180-167 = 13
What is y=2x+5? And is it proportional?
Answer:
y=-5...................
15 POINTS HURRY PLEASE!!
Answer:
C is your answer
Step-by-step explanation:
