Question

Simplify by combining like terms.
2/8x + 3/10y - 5/8x + 4/10y

7/10x+7/8y
-3/8x+7/10y
14/18xy
4/18xy

Answer 1

Evaluate when a=9,b=6
a-b/3

9
1
3
6

Answer 2

You are saving for a skateboard. Your aunt gives you $45 to start and you save $3 each week. The expression 45+3w gives the amount of money you save after w weeks. How much will you have saved after 4 weeks?
$576
$42
$33
$57

Answer 3

The simplified expression is 7/10x + 7/8y.

Answer 4

To evaluate the expression when a = 9 and b = 6:

Substitute the values of a and b into the expression:
(9 - 6)/3

Evaluate the numerator first:
9 - 6 = 3

Then divide the numerator by the denominator:
3/3 = 1

Therefore, the value of the expression when a = 9 and b = 6 is 1.

Answer 5

To find the amount of money you will have saved after 4 weeks, substitute w = 4 into the expression 45 + 3w:

45 + 3(4) = 45 + 12 = 57

Therefore, you will have saved $57 after 4 weeks.