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IRINA_888 [86]
2 years ago
14

Richie's average on his math tests was 64%. On the next test he had a mark of 76%, and this raised

Mathematics
1 answer:
joja [24]2 years ago
5 0

Answer:

68

Step-by-step explanation:

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3 years ago
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6 0
3 years ago
=
sergij07 [2.7K]

Answer:

I. L = 17 cm.

II. W = 11 cm.

Step-by-step explanation:

Let the length of the rectangle be L.

Let the width of the rectangle be W.

Given the following data;

Perimeter of rectangle = 56cm

Translating the word problem into an algebraic expression, we have;

L = W + 6 .....equation 1

The perimeter of a rectangle is given by the formula;

P = 2(L + W)

56 = 2(L + W) ......equation 2

Substituting eqn 1 into eqn 2, we have;

56 = 2(W + 6 + W)

56 = 2(6 + 2W)

Opening the bracket, we have;

56 = 12 + 4W

4W = 56 - 12

4W = 44

W = 44/4

W = 11 cm

Next, we would find the length of the rectangle;

From eqn 1;

L = W + 6

L = 11 + 6

L = 17 cm

7 0
3 years ago
Prove: csc theta/sin theta - cot theta/tan theta<br><br>Answer: 1
Marysya12 [62]
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\bf \cfrac{cos(\theta )sin(\theta )~~-~~cos^2(\theta )}{sin^2(\theta )}=1\implies cos(\theta )sin(\theta )-cos^2(\theta )\ne sin^2(\theta )


now, if we move the second fraction over, we'd get the equation of,

\bf \cfrac{cos(\theta )}{sin(\theta )}-\cfrac{cot(\theta )}{tan(\theta )}=1\implies \cfrac{cos(\theta )}{sin(\theta )}=1+\cfrac{cot(\theta )}{tan(\theta )}


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5 0
2 years ago
How do you make 6.83 as a mixed number?
PilotLPTM [1.2K]
It would be 6 83/100

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