All categories

3 years ago

Is this the right answer?

Mathematics

1 answer:

iren2701 [21]3 years ago

8 0

Hello from MrBillDoesMath!

Answer:

Yes!

Discussion:

a + b= 2a => subtract "a" from both sides

a - a + b = 2a - a => as (a-a) = 0 and (2a-a) = a

b = a (*)

Then from (*) above

b-a = b - b => b-b = 0

b -a = 0

Thank you,

MrB

You might be interested in

If the area of a circle is 290 square inches, what is the radius ?

Nutka1998 [239]

r≈9.61in is the answer

5 0

3 years ago

This relation is an inverse variation {(-1,8),(4,-2),(-2,4)} what equation represents this relation?

swat32

ANSWER

$y = - \frac{8}{x}$

EXPLANATION

An inverse variation equation is of the form:

$y = \frac{k}{x}$

We plug in the point (-1,8).

$8= \frac{k}{ - 1}$

This implies that k=-8

Therefore the inverse variation equation is :

$y = - \frac{8}{x}$

8 0

4 years ago

Find 7.4 times the difference between 87 and 24.

wlad13 [49]

Step 1
Find the difference between 87 and 24
(87-24)=63

step 2
Find 7.4 times the difference between 87 and 24
7.4*63=466.2

the answer is
466.2

6 0

3 years ago

Your parents ask you to choose between two offers for an allowance. The first offer is to receive one penny on the first day, 2

Ahat [919]

Answer:

pennies/first offer

Step-by-step explanation:

you would be rich

1x2=2 2^364= a lot of pennies

5 0

4 years ago

Read 2 more answers

Someone help me with this geometry homework !!!!!! 10 points!

Reil [10]

Answer: 3a = (0, 1) 3b = (2, 1) 3c = (2.5, 1) 3d = (1.6, 1)

4a = (2, 3.5) 4b = (2, 3) 4c = (2, 5.375)

Step-by-step explanation:

The length of AB is 6 and is horizontal (affects the x-coordinate)

$3a)\quad 6\bigg(\dfrac{1}{2}\bigg)\quad =3\qquad \qquad A(-2, 1) +(3, 0)= C(1,1)\\\\\\3b)\quad 6\bigg(\dfrac{2}{3}\bigg)\quad =4\qquad \qquad A(-2, 1) +(4,0)= C(2,1)\\\\\\3c)\quad 6\bigg(\dfrac{3}{4}\bigg)\quad =\dfrac{9}{2}\qquad \qquad A(-2, 1) +(4.5,0)= C(2.5,1)$

$3d)\quad 6\bigg(\dfrac{3}{5}\bigg)\quad =\dfrac{18}{5}\qquad \qquad A(-2, 1) +(3.6,0)= C(1.6,1)$

***********************************************************************************

The length of AB is 5 and is vertical (affects the y-coordinate)

$4a)\quad 5\bigg(\dfrac{1}{2}\bigg)\quad =\dfrac{5}{2}\qquad \qquad A(2, 1) +(0,2.5)= C(2,3.5)\\\\\\4b)\quad 5\bigg(\dfrac{2}{5}\bigg)\quad =2\qquad \qquad A(2, 1) +(0,2)= C(2,3)\\\\\\4c)\quad 5\bigg(\dfrac{7}{8}\bigg)\quad =\dfrac{35}{8}\qquad \qquad A(2, 1) +(0,4.375)= C(2,5.375)$

4 0

3 years ago