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Step2247 [10]
3 years ago
9

Solve for a. 7a + 18 = 102 a =

Mathematics
1 answer:
Ostrovityanka [42]3 years ago
6 0

Answer:

a=12

Step-by-step explanation:

7a+18=102

first, subtract 18 FROM BOTH SIDES!

then you get 7a=84.

next, divide BOTH SIDES by 7

and you get a =12 :)

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Write an equivalent expression for -3t+4q+5t-7q
steposvetlana [31]

Answer:

The equivalent expression can be given as:

⇒  2t-3q

Step-by-step explanation:

Given expression:

-3t+4q+5t-7q

To write an equivalent expression:

Solution:

In order to write an equivalent expression, we will combine the like terms. By like terms, we mean the terms with the same variable constant.

For example : 5x and -3x  are like terms.

We have:

-3t+4q+5t-7q

Combining like terms :

⇒ -3t+5t+4q-7q

⇒  2t-3q

Thus, the equivalent expression can be given as:

⇒  2t-3q

6 0
4 years ago
A circle has its center at the origin, and (5, -12) is a point on the circle. How long is the radius of the circle?
kolezko [41]
(x-center)^2+(y-center)^2=r^2
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5 0
3 years ago
Read 2 more answers
Through (3,2) parallel to y= 3x + 4
Sliva [168]

Answer:

y =3x-7

Step-by-step explanation:

y - 2 = 3(x-3)

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7 0
4 years ago
Solve for x.<br><br> 5= 1/5x-3<br><br> (the "x" is a variable not a multiplication sign)
Alchen [17]

Answer:

x =40

Step-by-step explanation:

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Add 3 to each side

5+3 = 1/5x -3+3

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Multiply by 5

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4 0
3 years ago
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Step-by-step explanation:

4 0
3 years ago
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