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3 years ago

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

1 answer:

5 0

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

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(8, 1) and (-1, 10)<br> Slope

gizmo_the_mogwai [7]

Answer:

<h2>The answer is 1</h2>

Step-by-step explanation:

The slope of the line between two points can be found by using the formula

$m = \frac{ y_2 - y _ 1}{x_ 2 - x_ 1}$

where

(x1 , y1) and (x2 , y2) are the points

From the question is points are

(8, 1) and (-1, 10)

Substitute the values into the above formula and solve for the slope

That's

$m = \frac{10 - 1}{8 + 1} \\ = \frac{9}{9} = 1$

We have the final answer as

Hope this helps you

7 0

3 years ago

It takes 7 hours for 12 people to

Alborosie

Answer: You would need 5 men to paint a room in 3 hours

YWW :)

6 0

2 years ago

Read 2 more answers

A rectangular area measuring 24 meters by 16 meters is to be fenced. An 8 meter section of fence costs $75. How much will it cos

inysia [295]

The answer is $750. Which is option C.

5 0

3 years ago

Read 2 more answers

Please help, thanks.

Liula [17]

Answer:

$\frac{ - 5}{54} + \frac{5 \times 6}{9 \times 6} = \frac{ - 5 + 30}{54} = \frac{25}{54}$

$\frac{15}{4} \div \frac{3}{8} = \frac{15}{4} \times \frac{8}{3} = 10$

$10 \times \frac{25}{54} = \frac{250}{54} = 4 \times \frac{17}{27}$

b )

$4 \times \frac{17}{27} = \frac{125}{27} =$

cube root =

$\frac{5}{3}$

c ) square root

$\frac{125}{27} = \frac{ \sqrt{25 \times 5} }{ \sqrt{3 \times 9} } = \frac{5 \sqrt{5} }{3 \sqrt{3} }$

3 0

3 years ago

I WILL GIVE BRAINLIEST HELP PLEASEEEE HELP PLEASEEE

Lady bird [3.3K]

Answer:

-39

Step-by-step explanation:

$\left(-3\right)^3-\sqrt[3]{27}-4^3\left(\sqrt[3]{64}-\left(2\right)\left(2\right)\right)-\frac{\left(3\right)^3\left(2\right)}{6}$

$-27-3-64\left(4-4\right)-\frac{54}{6}$

$-27-3-\frac{54}{6}$

$-27-3-9$

Which gives us -39.

5 0

3 years ago