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Mathematics

2 answers:

Inessa [10]3 years ago

8 0

Answer:

$\sqrt{57} = 7.5$

$\sqrt{26} = 5.1$

atroni [7]3 years ago

7 0

Answer:

7. 7.6

8. 5.1

Step-by-step explanation:

For number seven we know that the square root of 49 is 7 and the square root of 64 is 8. Because 57 is in the middle of these numbers we can assume that the answer is around 7.5 but because it is closer to 64 the proper estimate would be about 7.6. You can check this by plugging the equation into a calculator.

For number eight we know that the square root of 25 is 5. 26 is just over 25 so it's square root must be just over 5. This leads you toward the estimate of 5.1. You can also double check this with a calculator.

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Finley's pumpkin had a mass of 6.56.56, point, 5 kilograms (\text{kg})(kg)left parenthesis, start text, k, g, end text, right pa

insens350 [35]

Answer:

40%

Step-by-step explanation:

Finley's pumpkin had a mass of 6.5 kg before he carved it.

After carving it, the pumpkin had a mass of 3.9 kg.

Now, we are asked to determine the % decrease in the mass of the pumpkin.

Therefore, the % decrease in mass is given by

$\frac{\textrm {Initial Mass - Final Mass}}{\textrm {Initial Mass}} \times 100= \frac{6.5 - 3.9}{6.5} \times 100 = 40$ %. (Answer)