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marshall27 [118]
3 years ago
7

A map has a scale of 1 cm = 5 km

Mathematics
1 answer:
Mashcka [7]3 years ago
5 0
2cm=10 km and 1.5cm= 5.5 or 5 1/2

10km x 5.5= 55
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What is the length and the width of a rectangle with perimeter of 48 inches if its length is 7 inches longer than its width.
sattari [20]

Answer:

Length and the width of the rectangle is 15.5 inches and 8.5 inches respectively.

Step-by-step explanation:

Given:

Length = 7 inches + Width

=> P = 48 inches

=> L = (7 + W) inches............. (1)

Perimeter 'P' is the sum of all sides of the rectangle 2 (L + W)

∴ 48 inches = 2 (L + W) .................(2)

Substitute for L in equation (2)

∴ 48 inches = 2 [(7 + W) + W]

48 = 2[7 + 2W]

48 = 14 +4W

48 - 14 = 4W

34 = 4W

W = 8.5 inches

Recall that: Length, L = (7 + W)

∴ L = (7 + 8.5)

L = 15.5 inches

4 0
3 years ago
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gretchen and Ezia received equal scores on a test made up of multiple choice questions and an essay. Gretchen got 18 multiple ch
timurjin [86]
The multiply choice were worth 4 points. 
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So basically you can enter any number. At first I picked 3 and then I did the math and I got 73 points for Gretchen and 76 points for Ezia. 

Then I pick four and then I got 91 points for them both. This is how I got the answer: 

18x+19=15x+31
18(4)+19=15(4)+31
72+19=60+31
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How much money do you save when you buy a $40 video game that is on sale for 25% off?
nexus9112 [7]
I it is think it’s $10
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What is the solution of each equation<br> 42=7f
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Answer:

f = 6

Step-by-step explanation:

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There would be 3 2/12 left.

2/3 x 1/4 = 2/12

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