All categories

3 years ago

What is the solution to -9m = -45? m = 5 m = -405 m = -5 m = 405

Mathematics

2 answers:

Bond [772]3 years ago

4 0

M=5
Positive 5 because a negative divide by a negative is a positive
All you have to do is divide 45 and 9

mina [271]3 years ago

4 0

Answer:X=5

Step-by-step explanation:-9m=-45

First divide both sides by 9. The 9 will cancel out and you'll be left with 5 because of -45 divided by -9.The reason on why its positive is because a negative divided by a negative cancels out and becomes positive.

You might be interested in

Find the value of (x^2-5x + 4) if x = 7.

Alina [70]

Answer:

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Find the difference of 5 2/3 -4 5/9 A 3/4 B 1 1/9 C 1 1/2 D 8/9

sergey [27]

Answer: B- 1 1/9
Work:
5 2/3 - 4 5/9
1 2/3 - 5/9
1 6/9 - 5/9
= 1 1/9

5 0

3 years ago

Which ordered pair is a solution to the system of linear equations 1/2x-3/4y=11/60 and 2/5x+1/6y=3/10

natka813 [3]

ANSWER

$( \frac{2}{3} , \frac{1}{5} )$

EXPLANATION

The first equation is

$\frac{1}{2} x - \frac{3}{4} y = \frac{11}{60} ...(1)$

The second equation is

$\frac{2}{5} x + \frac{1}{6} y = \frac{3}{10} ...(2)$

We want to eliminate y, so we multiply the first equation by

$\frac{4}{5}$

$\frac{4}{5} \times \frac{1}{2} x - \frac{4}{5} \times \frac{3}{4} y = \frac{11}{60} \times \frac{4}{5}$

$\frac{2}{5} x - \frac{3}{5} y = \frac{11}{75} ...(3)$

We now subtract equation (3) from (2)

$(\frac{2}{3} x - \frac{2}{3} x )+ ( \frac{1}{6} y - - \frac{3}{5}y ) =( \frac{3}{10} - \frac{11}{75} )$

$\frac{1}{6} y + \frac{3}{5}y =\frac{3}{10} - \frac{11}{75}$

$\frac{23}{30}y = \frac{23}{150}$

Multiply both sides by

$\frac{30}{23}$

$\implies \: \frac{30}{23} \times \frac{23}{30}y= \frac{23}{150} \times \frac{30}{23}$

$\implies \: y = \frac{1}{5}$

Substitute into the first equation to solve for x .

$\frac{1}{2} x - \frac{3}{4} \times \frac{1}{5} = \frac{11}{60}$

Multiply to obtain

$\frac{1}{2} x - \frac{3}{20} = \frac{11}{60}$

$\frac{1}{2} x = \frac{11}{60} + \frac{3}{20}$

$\frac{1}{2} x = \frac{1}{3}$

Multiply both sides by 2.

$2 \times \frac{1}{2} x =2 \times \frac{1}{3}$

$x = \frac{2}{3}$

The solution is

$( \frac{2}{3} , \frac{1}{5} )$

5 0

3 years ago

Read 2 more answers

Determine the slop of the line passing through (-3,7) and (9,-2)

enot [183]

The slope is 3/4. you need to find the change of y over the change of x.

5 0

3 years ago

121057003 Sphere Find the area of radius tem Area - 300cm- 30cm ainda

Norma-Jean [14]

Answer:

Step-by-step explanation:

Circumference (Perimeter) of Circle Formula: The circumference of a circle is determined by the following formula

where

is the length of the diameter of the circle and

≈

3.14

Circumference (Perimeter) of Circle Formula: The circumference of a circle is determined by the following formula

where

is the length of the radius of the circle and

≈

3.14

Area of Circle Formula: The area of a circle is determined by the following formula

6 0

3 years ago