3 years ago

Solving Equations. 2(a-3)=5a+3a

Mathematics

2 answers:

vampirchik [111]3 years ago

6 0

Answer:

the answer would be a=-1

Romashka-Z-Leto [24]3 years ago

3 0

Answer: -1

Step-by-step explanation: 2a -6=8a ; subtract 2a from both sides leaving -6 = 8a - 2a ; -6=6a ; divide both sides by 6 leaving -6/6=a or -1=a

You might be interested in

Help me with this geometey question !! thanks!

Reptile [31]

Answer:

A=542

Step-by-step explanation:

none, sorry

6 0

2 years ago

Read 2 more answers

Andy estimated that he would need 79 feet of lumber for a tree house project. He later found that the actual amount of lumber ne

Radda [10]

Answer:

Step-by-step explanation:

79 divided by 68 is your answer

You can do the math

5 0

3 years ago

36 is 0.9 of what number?

notsponge [240]

To solve for x you do these steps
x=number

1. do this following multiplication problem to get 0.9%
36/x*100%= 0.9%

2. now do the opposite of what you did before to get x
36 divided by 0.9%= x

36 divided by 0.9%= 40

x = 40

5 0

3 years ago

Read 2 more answers

Write an appropriate direct variation equation if y = 18 when x = 2

Sergeu [11.5K]

Answer:

$y=9x$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form $k=\frac{y}{x}$ or $y=kx$

In this problem we have

y=18 when x=2

Find the value of the constant of proportionality k

$k=\frac{y}{x}$ ----> $k=\frac{18}{2}=9$

therefore

The equation is equal to

$y=9x$

8 0

3 years ago

Find the mean of the following data set.<br> 42, 45, 58, 63<br> 42<br> 47<br> 52

igomit [66]

52 i believe.

42 + 45 + 58 + 63 = 208
208 / 4 = 52

6 0

3 years ago