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yarga [219]
2 years ago
15

50% of what gives u 21

Mathematics
1 answer:
devlian [24]2 years ago
8 0

Answer:42

Step-by-step explanation:

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Betsy drove from london to wolverhampton.it took her 2.5 hours at an average speed of 56 miles per hour.Mac drove the same journ
sergiy2304 [10]

Answer:

44.8 mph

Step-by-step explanation:

Betsy drove from london to wolverhampton.it took her 2.5 hours at an average speed of 56 miles per hour.Mac drove the same journy by motor bike.It took him 2 hours.Assuming that both took the same route,work out Mac's average speed in mph.

The above question is solved using Proportion method

2.5 hours = 56 mph

2 hours = x mph

Cross Multiply

2.5 hours × x mph = 2 hours × 56 mph

x mph = 2 hours × 56 mph/2.5 hours

x mph = 44.8 mph

Therefore, Mac's average speed = 44.8 mph

4 0
2 years ago
What is the greatest multiple of 14 and 21
vova2212 [387]

Answer:

The greatest multiple of 14 and 21 is 7.

Step-by-step explanation:

1,2,<u>7</u>,14

1,3,<u>7</u>,21

Hope it helps!

7 0
3 years ago
Plzzzzzzzz help!!!!!!!!!
aev [14]

Answer:

20

Step-by-step explanation:

The ratio is 3:5, so 3x4 equals 12, then 5x4=20.

7 0
3 years ago
What is the volume of the triangular prism below?<br><br> and can someone tell me how to do this
seraphim [82]

Answer:

4.5 ft^3

Step-by-step explanation:

note to convert 18 in. to feet = 1.5 feet

divide the length value by 12

3 0
2 years ago
{y&gt;−2x+y≤4 <br><br> (0, −4)<br> (1, 5) <br> (−2, −3) <br> (1, 3)
Yuliya22 [10]
The answer are (1, 5) and (1, 3)
6 0
3 years ago
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