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alekssr [168]
3 years ago
5

Find the value of t perimeter

Mathematics
2 answers:
Natali5045456 [20]3 years ago
7 0

Answer:

<h2><em><u>t = 15.2 is the answer</u></em></h2>

Step-by-step explanation:

<h2><em><u>1. Make an equation</u></em></h2>

numbers to find perimeter = perimeter

Side + Side + 2 unknown sides = perimeter

12 + 7.8 + 2t = 50.2

<h2><em><u>2. Simplify like terms</u></em></h2>

19.8 + 2t = 50.2

<h2><em><u>3. Solve</u></em></h2>

19.8 + 2t = 50.2

-19.8        - 19.8

2t = 30.4

<h2><em><u>t = 15.2</u></em></h2>

<h2><u><em>4. Check:</em></u></h2>

12 + 7.8 + t + t = 50.2

12 + 7.8 + (15.2) + (15.2) = 50.2

<h2><em><u>50.2 = 50.2</u></em>   Correct!</h2><h2 />

Hope this helped,

Kavitha

dolphi86 [110]3 years ago
6 0

Answer:

t = 15.2 miles

Step-by-step explanation:

First, let's add the top and bottom numbers together.

<em>7.8 + 12 = 19.8 mi</em>

Next, we subtract that from 50.2 to get the combined value of both t's.

<em>50.2 - 19.8 = 30.4 mi</em>

Finally, we can divide 30.4 by 2 to get the value of t.

<em>30.4 ÷ 2 = </em><em>15.2 mi</em>

<em />

To check our answer, we can add all the sides up to see if they equal to 50.2. 15.2 + 15.2 = 30.4

30.4 + 12 + 7.8 = 50.2

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The force, F (Newtons), between two objects is inversely proportional to the square of the distance, d (metres), between them. T
Anarel [89]

Answer:

D = 0.42m

Step-by-step explanation:

Given

Force = 0.052 N when Distance = 1.6 m

Required

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The question says force is inversely proportional to square of distance;

Let F represent Force and D represent Distance;

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F\alpha \frac{1}{D^2}

Convert proportion to equation

F = \frac{k}{D^2}

<em>Where k is the proportionality constant; This means that k is always constant</em>

Make k the subject of formula

F * D^2 = \frac{k}{D^2} * D^2

FD^2 = k

When F = 0.052 and D = 1.6; the value of k is as follows

0.052 * 1.6^2 = k

0.13312 = k

k = 0.13312

When F = 0.74;

Recall that k is always constant; so k = 0.13312

To solve for D, we'll make use of F = \frac{k}{D^2}

Substitute k = 0.13312 and F = 0.74;

0.74 = \frac{0.13312}{D^2}

Multiply both sides by D²

0.74 * D^2 = \frac{0.13312}{D^2} *D^2

0.74 * D^2 = 0.13312

Divide both sides by 0.74

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Take square roots of both sides

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