Answer:
$81
Step-by-step explanation:
First, find out how much he charges for raking 1 bag of leaves. The following equation can solve for the amount charged per bag.
<em>[b = amount charged per bag]</em>
15/5 = b
15/5 = 3
3 = b
This means he charges $3 for one bag.
Martin rakes 27 bags, so multiply 3 by 27 to find the total amount of money he earned
27(3) = 81
So, Martin earned $81 for raking 27 bags of leaves
It would be B, none of these
Answer:
64
Step-by-step explanation:
A negative exponent means we first calculate the exponent, then we take the reciprocal.
The first step is to calculate 
. This is equal to 
. Then, we take the reciprocal. The answer is 64.
First:
Subtract 5 on each side of the equals sign to cancel it out. You should get 13x=144.
Next:
Divide 13 from each side of the equals sign to get x by itself.
Answer:
X=11.0769230769. You may need to round it up to 11.08 or 11.1 depending on how your teacher normally has you answer
Answer:
3/8 + 1/4 < 1
Check: Find common denominators, what you do to the denominator, you do to the numerator. Multiply 2 to both the top and bottom of the fraction:
(1/4)(2/2) = 2/8
3/8 + 2/8 < 1
5/8 < 1
5/8 < 8/8 (True).
Any fraction works in the second one, for regardless, you will get less than a whole number, so solve the third one first.
The 2 fractions needed will have to be greater than 1. 1/4 has already been used, so find two pairs of fractions that will, when added, be greater than 1.
(7/8 + 3/4)
Find common denominators, what you do to the denominator, you must do to the numerator:
(7/8)(2/2) + (3/4)(4/4) = (14/16) + (12/16) = 26/16
26/16 > 1 (True).
Finally, the last one will be 2/3.
2/3 - 1/8 < 1
Find common denominators, what you do to the denominator, you must do to the numerator:
(2/3)(8/8) - (1/8)(3/3) < 1
16/24 - 3/24 < 1
13/24 < 1 (True).
~
