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baherus [9]
2 years ago
6

Linear Equations, Write an equation to represent the plan and describe each variable or number in your equation represent in the

context

Mathematics
1 answer:
IrinaVladis [17]2 years ago
8 0

Answer:

Step-by-step explanation:

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A map has a scale of 1 cm : 20 km. Two cities are 2.5 cm apart on the map. To the nearest tenth of a kilometer, what is the actu
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Answer:

the real size, 20 km, by  

2.5 /1   Then, 20 x 2.5=50. So the answer is 50 km

Step-by-step explanation:

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3 years ago
String a is 35 centimeters long. String b is 5 times long as string a. Both are necessary to create a decorative bottle. Find th
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String a is 35 cm.....string b is 5 times as long as string a.....
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6 0
3 years ago
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the length of diagonal of a rectangular field is 23.7 m and one of its sides is 18.8 m. find the perimeter of the field.​
katen-ka-za [31]

Answer:

Approximately 66.4 Meters

Step-by-step explanation:

So we have a rectangle with a width of 18.8 meters and a diagonal with 23.7 meters. To find the perimeter, we need to find the length first. Since a rectangle has four right angles, we can use the Pythagorean Theorem, where the diagonal is the hypotenuse.

a^2+b^2=c^2

Plug in 18.8 for either <em>a </em>or <em>b. </em>Plug in the diagonal 23.7 for <em>c. </em>

<em />(18.8)^2+b^2=23.7^2\\b^2=23.7^2-18.8^2\\b=\sqrt{23.7^2-18.8^2} \\b\approx14.4 \text{ meters}

Therefore, the length is 14.4 meters. Now, find the perimeter:

P=2l+2w\\P=2(14.4)+2(18.8)\\P=66.4\text{ meters}

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3 years ago
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