3 years ago

Can someone explain how to do this and help me

Mathematics

1 answer:

Hoochie [10]3 years ago

4 0

Answer:

12 would be the answer

Step-by-step explanation:

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An art teacher buys 9 bags of cotton balls there are 68 cotton balls in each bag whitch expression is best to estimate the numbe

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Answer:

612

Step-by-step explanation:

9 x 68 = 612

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4 years ago

1 2/3 greater or less than 1.7

natali 33 [55]

Answer:

1.7 is bigger

Step-by-step explanation:

1.7 is bigger (greater) than 1 2/3

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netineya [11]

When p=8, we can substitute it into the equation.
4x8-2
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The atmospheric pressure on an object decreases as altitude increases. If a is the height (in km) above sea level,

allsm [11]

Answer:

253 mmHg

Step-by-step explanation:

Since the atmospheric pressure, $P(a) = 760e^{-0.13a}$

when a = height (in km) = 8.47 km, then the atmospheric pressure P(a) is

$P(a) = 760e^{-0.13a}\\P(8.47) = 760e^{-0.13X8.47}\\P(8.47) = 760e^{-1.1011} \\P(8.47 )= 760 X 0.33251 \\P(8.47)= 252.7 mmHg\\$

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3 years ago

1/3 cup of flour is used in 5 dinner rolls. How many cups of flour are needed to make 3 dozen rolls?

gladu [14]

3 dozen=3·12=36

$\frac{1/3}{5} =\frac{x}{36}$

Use cross multiplication

1/3·36=5x

12=5x

12/5=5x/5

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12/5 or 2 2/5 cups of flour is needed to make 3 dozen rolls

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