Alexandra finds that she can give 3 haircuts and 2 hair dyes in 315 minutes. Giving 2
1 answer:
Answer:
is the system of equations representing the situation.
Step-by-step explanation:
Given:
Alexandra finds that she can give 3 haircuts and 2 hair dyes in 315 minutes. Giving 2 haircuts and 4 hair dyes takes 450 minutes.
Now, to find the system of equations representing the situation.
<u><em>Let the number of haircuts be </em></u><u><em /></u>
<u><em>Let the number of hair dyes be </em></u><u><em /></u>
So, Alexandra can give 3 haircuts and 2 hair dyes in:
Now, giving 2 haircuts and 4 hair dyes in:
Therefore,
is the system of equations representing the situation.
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Answer:
135 minutes
Explanation:
36 cupcakes in 45 minutes can be written as
, so to find how long 108 will take, you can find it by equating these two fractions:
= 
Simplify by cross division:
divide 45 and 108 by 3 to simplify into this:
=
x = 15
The rate is 3, so 45 • 3 = 135 minutes.
Another way of looking at it is this:
108 ÷ 36 = 3 this is the rate that you need to multiply the amount of time that it takes to make the cupcakes, so:
45 • 3 = 135 minutes.
135 minutes
Explanation:
36 cupcakes in 45 minutes can be written as
Simplify by cross division:
divide 45 and 108 by 3 to simplify into this:
x = 15
The rate is 3, so 45 • 3 = 135 minutes.
Another way of looking at it is this:
108 ÷ 36 = 3 this is the rate that you need to multiply the amount of time that it takes to make the cupcakes, so:
45 • 3 = 135 minutes.