B:
Step-by-step explanation
simplify each expression 6X + 2x
Solve the following system of equations by graphing each line.
x+y=4
3x+4y=10
*mark the solution with a point
Answer:
y = -2
x = 6
Step-by-step explanation:
hope it help
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24:50 as a simplified fraction
Answer:
12/25
Step-by-step explanation:
24/50 =12/25
÷2
Answer:
12/25 is the lowest terms it can be simplified
What is the y-intercept of the line?
110
A
2
B
3
000
-7
-6
D
what's the opposite of -4
Answer:
4
Step-by-step explanation:
It's a opposite of -4 so the opposite would be 4
Answer:
4
Step-by-step explanation:
The opposite of -4 is 4
In addition
The absolute value of -4 is also 4
Therefore, the answer is 4.
What is 4/5 as a decimal?
Answer:
Umm, 0.8
Step-by-step explanation:
Is this fr?
Does anyone know how to do simple interest for 7th grade math? I need a tutorial or an example please, thanks. A question example is $750, 7%, 3 years.
Answer:
750/100 X 7 = 52.50
52.50 X 3 = $157.50
Step-by-step explanation:
divide principal amount by 100 then multiply by interest percentage. this gave 52.50
now multiply the interest amount by number of years
in this case 3
52.50 X 3 = $157.50
If f(x)= -2x+3 , find f(-1)?
Before we solve the equation let's take a look at it.
f(x) = -2x + 3
See how x appears in both f(x) and as the variable in the second half of the equation?
f(x) means "The function of x." You might also see g(x), h(x), and while those are the most common it can really be any letter, and any variable inside the parentheses.
So when we see f(-1), that means "The function of -1" or "The function of x when it is equal to -1."
Catching on? We need to replace x with -1 to solve for f(-1).
So here we go:
f(x) = -2x + 3
f(-1) = -2(-1) + 3
f(-1) = 2 + 3
f(-1) = 5
Voilà! We have solved for f(-1). Hope this helped.
-20t>-80 what is t and how do you graph it on a nuberline
Answer:
Step-by-step explanation:
Divide both sides by -20. If you divide by a negative, you have to switch the inequality sign. So now you have this for t:
t < 4
Draw a circle around 4 on a number line, but do not shade it in. Then everything below 4 is the right answer for the value of t.
A baseball card that originally cost $24 has been decreasing in value
at an annual rate of 6% for the last 5 years. What is the present value?
Answer:
I believe it is four dollars
Reasoning A cylindrical water tank holds 26 litres when full. The water tank is 36 cm tall.
Work out the radius of the tank to 2 d.p.
(4 marks)
Answer:
r = 15.16 cm
Step-by-step explanation:
Mathematically, we need a consistent unit
26 liters = 26,000 cm^3 as 1000 cm^3 = 1 L
The volume of a cylinder is;
V = pi * r^2 * h
26,000 = 3.142 * r^2 * 36
r^2 = 26,000/(3.142 * 36)
r^2 = 229.86
r = √229.86
r = 15.16 cm
Monday Bellwork Which solution would make this equation have infinitely many solutions? 6(x – 3) + x = 7x +
-18, -9, 18, or 9
Answer:-18
Step-by-step explanation:
6(x−3)+x=7x−18
Step 1: Simplify both sides of the equation.
6(x−3)+x=7x−18
(6)(x)+(6)(−3)+x=7x+−18(Distribute)
6x+−18+x=7x+−18
(6x+x)+(−18)=7x−18(Combine Like Terms)
7x+−18=7x−18
7x−18=7x−18
Step 2: Subtract 7x from both sides.
7x−18−7x=7x−18−7x
−18=−18
Step 3: Add 18 to both sides.
−18+18=−18+18
0=0
need help with this please
Answer:
13.6
Step-by-step explanation:
Remember SOH CAH TOA
We're going to use tangent = opposite / adjacent because the 11 is opposite theta (39 degrees) and x is adjacent to it.
tan (39) = 11 / x
x = 11 / tan(39)
x = 13.584 -> 13.6 (rounded to nearest tenth)
Note: Make sure your calculator is in degree mode.
Me.Lee ordered some pizzas to be delivered. The bill for the pizza was m dollars. Mr. Lee tipped the pizza delivery driver 15% of the bill. Write an expression for the total amount of money Mr. Lee paid
The expression would be: m + 0.15m and to know how much she paid I believe it would be 26.09 (rounded)
what is this 2x-5+22=?
Answer: 2x+17
Step-by-step explanation: add -5 and 22
______________________________
1.) Add −5 and 22:[tex]-5+22=17[/tex]
- You could also solve this by flipping the numbers around and subtracting 22 - 5, Which still gives you 17.
So your answer is [tex]\bold{(2x+17)}[/tex].
______________________________
15 POINTSSS AND BRAINLIEST
Create two equivalent ratios to 4:7.5, one with the first term more than 50 and one with the first term less than 1.
solve for c
c/6=12
A.2
B.6
C.18
D.72
Its A becuase 12/6=2
Cameron purchased an electric guitar for $1,875. The value of the guitar depreciates by 20% each year. In how many years will the guitar be valued at $768?
Answer:
4 years
Step-by-step explanation:
Hope this helps
Answer:
4 years
Step-by-step explanation:
do 1,875 divided by 768
what is the solution to the equation below?
Answer: x = -27
Step-by-step explanation:
Answer:
x=-27Step-by-step explanation:
to understand thisyou need to know about:equationPEMDASgiven:[tex] - 8 = \frac{x}{3} + 1[/tex]to solve[tex]x[/tex]let's solve:[tex] step - 1 : define \\ - 8 = \frac{x}{3} + 1[/tex]
[tex]step - 2 : \\ rewrite[/tex]
[tex]\frac{x}{3} + 1= - 8[/tex]
[tex]step - 3 : \\ subtract \: 1 \: from \: both \: sides[/tex]
[tex] \frac{x}{3} + 1 - 1 = - 8 - 1[/tex]
[tex] \frac{x}{3} = - 9[/tex]
[tex]step - 4 : \\ multiply \: both \: sides \: by \: 3[/tex]
[tex] \frac{x}{3} \times 3 = - 9 \times 3[/tex]
[tex] \huge \therefore x = - 27[/tex]
8x(x+1)=(4x-3)(2x+1)
Answer:
(3x+1)(2x+1)
Step-by-step explanation:
Answer:
[tex]x2[/tex]=[tex]\frac{5-\sqrt{113} }{8} , x2 = \frac{5+\sqrt{113} }{8}[/tex]
Step-by-step explanation:
hope this help and if you can give me brainliest
how do I define the theorem on this question?
Answer:
AAS
Step-by-step explanation:
have a good day:) .....
Write down the size of angle ABC.
Give a reason for your answer.
Answer:
Angle ABC = 90°
Step-by-step explanation:
Angle AOC= 180°
so Angle ABC = 0.5 x AOC
or another way to explain is
Rule 1: Angles in semi circle are always 90°
a video is 20 min long. devin made the video faster 2 times. how many minutes and what fraction is the answer?
Answer:
10 minutes. 1/2
Step-by-step explanation:
Answer:
10/20???
Step-by-step explanation:
at the pediatricians office, patients are able to select a toy from the toy bin. The toy bin has 12 puzzles, 16 boxes of crayons, and 2 bouncy balls. What is the probability of selecting anything but a bouncy ball
Answer:
9%
Step-by-step explanation:
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what is the slope of this equation, v=3x+60
Answer:
slope=3
Step-by-step explanation:
What number is missing in this sequence? 1, 2, 4, 7, 11, ___, 22
Answer:
16
Step-by-step explanation:
If you answer both of these i will give
Brainliest ( if thats how you spell it )
Answer:
first one:4/10
second one: 8/24
Step-by-step explanation:
i think this works but a hundred 100% sure though.
here you go hope its correct.
A ladder is leaned up against a wall. The bottom of the
ladder is 5 feet from the wall. The top of the ladder
reaches a spot on the wall that is 12 feet off the ground.
How long is the ladder? (HINT: draw a rough sketch!)
7 feet
13 feet
17 feet
20 feet
i
Answer:
Step-by-step explanation:
so 5 feet as a width and 12 as a height meaning that it would be b 13
Simplify the equation.
4x+8.2*34/9
* is times
/ is divided by
Please explain how you got the answer.
Answer:
4x+30.97777... (7 repeating)
Step-by-step explanation:
Look at image
A person going to a party was asked to bring 5 different bags of chips. Going to the store, she finds 11 varieties.
How many different selections can she make?
Answer:
as an instinct i thought that i should multiply 11 and 5, so im saying 55 different selections
Step-by-step explanation:
sorry if im wrong
