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Katyanochek1 [597]
2 years ago
7

A blueprint shows that a house’s length is 100cm and the width is 80cm. If the actual house length is 40 meters, what is the act

ual width?
Mathematics
2 answers:
Phantasy [73]2 years ago
8 0

<u>Answer:</u>

Actual width of house = 32 meters

<u>Step-by-step explanation:</u>

We are given that blueprint shows that a house’s length is 100cm and the width is 80 cm.

We will use the ratio method to find the actual width of the house if the actual length is 40 meters.

\frac { 1 0 0 c m } { 1 c m } = \frac { 4 0 m } { x }

x = \frac { 4 0 } { 1 0 0 }

x = 0 . 4

So actual width of the house = 80 \times 0.4 = 32 meters

lianna [129]2 years ago
3 0

Answer:

32 meters

Step-by-step explanation:

<u>The question is on scale</u>

Length of house on paper=100cm

Length of house actual=40m

<u>finding the scale used;</u>

make both lengths with similar units;

100cm rep 40m

100cm = 40×100 cm

100cm=4000cm

<em>1:40⇒1cm rep 40 cm</em>

<u>Finding actual measurement of the width</u>

1cm rep 40cm

80cm rep ?

cross multiply; (80×40)÷1= 3200cm

actual width=3200/100= 32 meters

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