austintules2005
15.01.2020 •
Mathematics
You are building a dollhouse for your enormous barbie collection the blueprint of the dollhouse uses a scale of 1: 20 the floor of the house measured 5” x 4.5” on the blueprint. what are the dimensions of the floor of the dollhouse in real life? ( in inches). part b - the material you are using for the floor costs $1.50 per square foot. how much will it cost to buy the material for the floor assuming you can buy a piece exactly the right size? show work
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Ответ:
Part a) The dimensions of the floor of the dollhouse in real life are 100 in by 90 in
Part b)
Step-by-step explanation:
Part a) What are the dimensions of the floor of the dollhouse in real life?
we know that
The scale is 1:20
That means
1 unit in the blueprint represent 20 units in real life
or
1 inch in the blueprint represent 20 inches in real life
The dimensions of the floor on the blueprint are
5 in by 4.5 in
To find out the dimensions in real life multiply the dimensions on the blueprint by 20
5(20)=100 in
4.5(20)=90 in
therefore
The dimensions of the floor of the dollhouse in real life are 100 in by 90 in
Part b) The material you are using for the floor costs $1.50 per square foot. How much will it cost to buy the material for the floor assuming you can buy a piece exactly the right size?
Remember that
To convert inches to feet divide by 12
Convert the dimensions of the floor of the dollhouse in real life to feet
Find the area of the floor in real life
Find the cost
Multiply the area by the cost per square foot
Ответ: