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skad [1K]
3 years ago
5

If a sample of 100 cars has 87 with grey interiors, how many in a second sample of 220 cars should have grey interiors?

Mathematics
2 answers:
vichka [17]3 years ago
6 0
191.4 since 87% of cars are grey so you take 87% of 220 by multiplying 220 by .87 which is 191.4
liubo4ka [24]3 years ago
3 0
100/87= 220/X
100X= 19,140
Divide by 100
X=191.4
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Two angels are supplementary. The measure of the large angle is four more than three times the measure of the small angle. Find
sashaice [31]

Answer:

The measure of the two supplementary angles is

Small angle = x = 44°

Large angle = y = 136

Step-by-step explanation:

Supplementary angles are two angles whose measures add up to 180° .

Let

Small angle = x

Large angle = y

x + y = 180°.... Equation 1

The measure of the large angle is four more than three times the measure of the small angle

Hence: y = 4 + 3x

We substitute 4 + 3x for y in Equation 1

x + 4 + 3x = 180°

4x + 4 = 180°

4x = 180° - 4

4x = 176

x = 176/4

x = 44°

Solve for y

y = 4 + 3x

y = 4 + 3(44)

y = 4 + 132

y = 136°

Therefore, the measure of the two supplementary angles is

Small angle = x = 44°

Large angle = y = 136

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