Three times a number plus twice another is 10, while their sum is 10, Find the numbers

1 answer:

5 0

$3a+2b=10 \\\\ a+b=10 \\\\ \boxed{a=10-b} \\\\ 3(10-b)+2b=10 \\\\ 30-3b+b=10 \\\\ -b=10-30 \\\\ -b=-20 \\\\ \boxed{b=20} \\\\ a=10-20 \\\\ \boxed{a=-10}$

You might be interested in

Find the zero of the linear function F(x)=-4x+5

Sholpan [36]

Answer:um....

Step-by-step explanation:

7 0

3 years ago

-12 + 2a = -6(1 + a) + 8a

valkas [14]

-12 + 2a = -6 (1+a)?
Answer is 0 = 6

8 0

2 years ago

What’s 2.95 as a percent

hichkok12 [17]

Answer:

295%

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

I need help understanding square roots

Vlad [161]

I wonder if you mean to write $\sqrt[3]{256}$ in place of $3\sqrt{256}$ ...

If you meant what you wrote, then we have

$\sqrt{256}=\sqrt{16^2}=16$

$3\sqrt{256}=3\cdot16=48$

If you meant to write $\sqrt[3]{256}$ (the cube root of 256), then we could go on to have

$\sqrt[3]{256}=\sqrt[3]{16^2}=\sqrt[3]{(4^2)^2}=\sqrt[3]{4^4}=\sqrt[3]{4^3\cdot4}=4\sqrt[3]4$

6 0

3 years ago

You use a juice mix to make orange juice. You combine 12 ounces of the mix with 36 ounces of water. Which is a unit rate that de

emmasim [6.3K]

12 ounces of juice mix 1 ounce of juice mix
__________________ = __________________
36 ounces of water 3 ounces of water

For every ounce of juice mix, there are 3 ounces of water.

Hopefully, this answers your question.

5 0

3 years ago

Read 2 more answers