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Rzqust [24]
3 years ago
10

1-116 1.2.6

Mathematics
1 answer:
ankoles [38]3 years ago
3 0

Answer:

A. 30 adults; B. 24 not dolls

Step-by-step explanation:

A.

\begin{array}{rcl}\text{No. of adults} & = & \text{No. of visitors} \times \text{Fraction who are adults}\\& = & \text{100 visitors} \times \dfrac{\text{3 adults}}{\text{10 visitors}} \\& = & \textbf{30 adults}\\\end{array}

B.

If five-eighths of the prizes were dolls, then three-eighths of the prizes were not dolls.

\begin{array}{rcl}\text{No. not dolls} & = & \text{No. of prizes} \times \text{Fraction not dolls}\\& = & \text{64 prizes} \times \dfrac{\text{3 not dolls}}{\text{8 prizes}} \\& = & \textbf{24 not dolls}\\\end{array}

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Given:
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Solution:
Distance A and distance B is the same, distance could be defined using formula d = v × t
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add like terms
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vA = 22 + vB
vA = 22 + 33
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the speed of car A is 55 mph
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