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4 years ago

How many people were both 20 and Over and failed ? A.9 B.36 C.60 D.15

Mathematics

2 answers:

Valentin [98]4 years ago

7 0

Answer:

Step-by-step explanation:

90 - 30 = 60

60 - 45 = 15

d.15

sweet [91]4 years ago

5 0

Answer: D)15

Step-by-step explanation: Look at the totals first, 90 is the full total so subtract 30 from 90 and you get 60. Now look at the fail column, the only number is 45 so subtract 45 from 60 and you get 15.

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Find the slope of the line that passes through the pair of points. (5.3, –2.5), (7.3, –12.5)

astra-53 [7]

Answer:

-5

Step-by-step explanation:

The slope of the line is found by

m = (y2-y1)/(x2-x1)

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4 years ago

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ASHA 777 [7]

Answer:

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4 years ago

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What is the evaluate expression of the equation of 5+(16+2)÷3

Nat2105 [25]

5 + (16 + 2) ÷ 3 = 11

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3 years ago

A rectangular brick has a length of 5 centimeters, a width of 9 centimeters and a height of 20 centimeters.What is the surface a

a_sh-v [17]

ANSWER
The surface area of the brick is;

$650 \: {cm}^{2}$

EXPLANATION

The dimensions of the rectangular brick are

$l = 5cm$
$w = 9cm$
$h = 20cm$

The total surface area of a rectangular brick is given by,

$T.S.A = 2(lw + lh + hw)$

We substitute the values into the formula to obtain,

$T.S.A = 2(5 \times 9 + 5 \times 20 + 9 \times 20)$

$T.S.A = 2(45+ 100+ 180)$

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$T.S.A =650 \: {cm}^{2}$

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3 years ago

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3 years ago

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