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vaieri [72.5K]
3 years ago
13

For every 2 hours that Robert spends studying for a math test he spends 3 hours working on English. If he spends 21 hours one mo

nth on the math project, how many hours did he probably spend studying fir his English test?
Mathematics
1 answer:
nataly862011 [7]3 years ago
5 0

Answer:

31.5 hours studying English

Step-by-step explanation:

2 math hours  = 3 english hours

21 math hours = ? english hours

21/2 = 10.5

10.5 * 3 = 31.5

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5 0
1 year ago
15% of the toddlers in a preschool class drink water with their lunch. How many toddlers are in the class if 3 drink water with
Naddika [18.5K]
15%=3
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So, there are 20 students in the class.
8 0
2 years ago
Read 2 more answers
Share 60 in the ratio 5 7
nignag [31]
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7 0
3 years ago
The altitude (i.e., height) of a triangle is increasing at a rate of 2 cm/minute while the area of the triangle is increasing at
s344n2d4d5 [400]

Answer:

A = 1/2 B H       area = 1/2 base X height

B = 2 A / H = 2 * 99 / 12 = 16.5 cm

dA / d t = 1/2 * (B dH / dt + H dB / dt)

dB / dt = (2 dA / dt - B dH / dt) / H

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4 0
3 years ago
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4 0
2 years ago
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