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Andru [333]
2 years ago
8

Math - algebra (9th grade) please include work

Mathematics
1 answer:
Naily [24]2 years ago
3 0

Answer:

Step-by-step explanation:

Y)  \frac{x+4}{8} = 3

*multiply both sides by 8 - cancels out 8 in denominator*

x + 4 = 24

*subtract 4 from both sides*

x = 20

E) \frac{x-5}{2} = 1

*multiply both sides by 2 - cancels out 2 in denominator*

x - 5 = 2

*add 5 on both sides*

x = 7

N) \frac{x+2}{4} = 2

* multiply both sides by 4 - cancels out 4 in denominator*

x + 2 = 8

*subtract 2 from both sides*

x = 6

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A new video game is expected to sell 130 copies the first hour at a local game store. After that, the sales will follow the func
suter [353]
The answer is A I believe. 

At hour 1, the equation must equal 130,

therefore s(1) = 9(1-1) + 130
                s(1) = 9(0) + 130
                s(1) = 130

then so on when 
s(2) = 9(2-1) + 130
s(2) = 139

4 0
3 years ago
Read 2 more answers
How do u set up the word problem
galina1969 [7]

Answer:

8 feet

Step-by-step explanation:

First, draw a picture.  The pole is 22 feet tall.  Katherine is 5.5 feet tall.  She is 24 feet from the pole.  The light from the top of the pole to the tip of her shadow forms two similar right triangles.  The length of her shadow is x.

Now use similar triangles to write a proportion:

22 / (24 + x) = 5.5 / x

Cross multiply:

22x = 5.5 (24 + x)

Distribute:

22x = 132 + 5.5x

Combine like terms:

16.5x = 132

Divide:

x = 8

The shadow is 8 feet long.

6 0
3 years ago
What equation is equal to<br> 3/8 less than a number is 11
PtichkaEL [24]

Answer:

11=x-\frac{3}{8}

5 0
2 years ago
Need help on this if anyone can
Lunna [17]

Answer:

pretty sure it's 15 but if you used my answer and it was wrong srr

7 0
2 years ago
Students at a school will sell hats to raise money. There are some hats left over from last year, and 20 boxes of hats will be o
inna [77]

Answer:  A) 480

Step-by-step explanation:

x=20 substitute in the two equations

48(20)+37

24(20)+37

since the question said fewer , then you should subtract

48(20)+37 - 24(20)+37 = (960+37) - (480+37)

=923 - 443= 480

4 0
2 years ago
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