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Leviafan [203]
3 years ago
13

AMITA WANTS TO MAKE A MOLD FOR A CANDLE. SHE WANTS THE SHAPE OF THE CANDLE TO BE A RECTANGULAR PRISM WITH A VOLUME OF EXACTLY 28

CUBIC CENTIMETERS. SHE WANTS THE SIDES TO BE IN WHOLE CENTIMETERS. HOW MANY DIFFERENT MOLDS CAN SHE MAKE
Mathematics
1 answer:
vivado [14]3 years ago
4 0
28 = 7x4 so she can make 7 different molds
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Using a system of equations, it is found that Debbie worked 45 hours during the week.

<h3>What is a system of equations?</h3>

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

In this problem, the variables are:

  • Variable x: Amount of hours worked by Juan.
  • Variable y: Amount of hours worked by Debbie.

Juan and Debbie each earn 9 per hour at their "jobs", and earned a total of 765 for the week, hence:

9x + 9y = 765

Simplifying the expression by 9:

x + y = 85 -> x = 85 - y.

Debbie worked five hours more than juan during the week, hence:

y = x + 5.

Since x = 85 - y, we replace in the expression:

y = 85 - y + 5.

2y = 90.

y = 45.

Debbie worked 45 hours during the week.

More can be learned about a system of equations at brainly.com/question/24342899

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