3 years ago

Solve for x in the following system (show work) 3x+4y=8 y=3x+17

Mathematics

1 answer:

vodka [1.7K]3 years ago

7 0

3x + 4(3x+17) = 8
3x + 12x + 68 = 8
15x = - 60
x = - 4

i am a mathematics teacher. if anything to ask please pm me

You might be interested in

Simplify the expression using the distributive property. –4(–3x + 11) 1. Distribute the –4 through the parentheses: -4(–3x) + (-

diamong [38]

Let’s start with -4(-3x + 11) so, -4•-3x is 12x,because multiplying 2 negatives creates a positive. As for -4•11, it is -44. So, it should be 12x + -44. I hope this helps!

8 0

3 years ago

Read 2 more answers

21y+7x=56? what is the value of X

PSYCHO15rus [73]

Answer:

x = 8 - 3y

Step-by-step explanation:

$21y+7x=56\\\\21y-21y+7x=56-21y\\\\7x=56-21y\\\\\frac{7x=56-21y}{7}\\\\\boxed{x=8-3y}$

Hope this helps.

4 0

3 years ago

What is 1034÷22 ?<br><img src="https://tex.z-dn.net/?f=1034%20%5Cdiv%2022%20" id="TexFormula1" title="1034 \div 22 " alt="1034 \

Mrrafil [7]

The answer would be 47

3 0

3 years ago

Read 2 more answers

How many times smaller is 2 × 10^-10 than 4 × 10^-5

natta225 [31]

Answer:

200,000

Step-by-step explanation:

To find how many times smaller is smaller number than greater number, divide greater number by smaller number.

Greater number $=4\times 10^{-5}$

Smaller number $=2\times 10^{-10}$

Then

$\dfrac{\text{Greater number}}{\text{Smaller number}}\\ \\=\dfrac{4\times 10^{-5}}{2\times 10^{-10}}\\ \\=\dfrac{4}{2}\times \dfrac{10^{-5}}{10^{-10}}\\ \\=2\times \dfrac{1}{10^{-5}}\\ \\=2\times 10^5\\ \\=2\times 100,000\\ \\=200,000$

7 0

3 years ago

A person on a moving sidewalk travels 6 feet in 3 seconds. The moving sidewalk has a length of 80 feet. How long will it take to

tekilochka [14]

Answer:

40.5 seconds

Step-by-step explanation:

5 0

2 years ago