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Brut [27]
3 years ago
15

Show how to add 2 1/2+4/5 using a number line

Mathematics
1 answer:
Lelu [443]3 years ago
8 0

Answer: 11 and 3/10



Step-by-step explanation: first fing how many times 2 fits into 21 wich it fits 10 times so it would be 10 and 1/2 change 10 and 1/2 to 10 and 5/10 by multiplying it by 2. Then change 4/5 to 8/10 by multiplying by 2 then add 10 and 5/10 to 8/10 simplify if nessesary



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Answer:

x=10

Step-by-step explanation:

1/5 X- 2/3=4/3

    +2/3       +2/3

1/5x=6/3

1/5x=2

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x=10

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Joey ran 10 km in 10.5 hours. What was his average speed? Please show all work and answer seriously.
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Answer:

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A pyramid has a base with a demension 5 inches by 7 inches .The height of the pyramid is unknown .If the volume of the pyramid i
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Answer:

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From the formula of the volume of the pyramid, the height of the pyramid is given as:

h = \frac{3V}{l*h}

Hence, the height of the pyramid is:

h = \frac{3 * 105}{5 * 7}\\ \\h = \frac{315}{35} = 9in

The pyramid's height is 9 inches.

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