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max2010maxim [7]
4 years ago
14

25% of 72 is 18. 18+72=90. I this true or false?

Mathematics
2 answers:
ra1l [238]4 years ago
8 0

Answer:

yes!

Step-by-step explanation:

denpristay [2]4 years ago
7 0

Answer: True

25% of 72 is 18. 18+72=90

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A box of pencils is 5 1/4 inches wide. Seven pencils, laid side by side, take up 2 5/8 inches of the width. How many inches of t
Andre45 [30]

Answer:   Width of box is not taken up by pencils =  2\dfrac58\text{ inches}

Width of each pencil =\dfrac38\text{ inches}

Step-by-step explanation:

Given: Width of pencil box = 5\dfrac14\text{ inches}=\dfrac{21}{4}\text{ inches}

Width of seven pencils = 2\dfrac58\text{ inches}=\dfrac{16+5}{8}\text{ inches}=\dfrac{21}{8}\text{ inches}

Width of box is not taken up by pencils =  Width of pencil box  - Width of seven pencils

\left \{ {{y=2} \atop {x=2}} \right. \dfrac{21}{4}-\dfrac{21}{8}\\\\=\dfrac{21\times2-21}{8}\\\\=\dfrac{21}{8}\text{ inches}=2\dfrac58\text{ inches}

Width of box is not taken up by pencils =  2\dfrac58\text{ inches}

Width of each pencil = (Width of seven pencils ) ÷ 7

=\dfrac{21}{8}\div7\\\\=\dfrac{21}{8}\times\dfrac17\\\\=\dfrac38\text{ inches}

Width of each pencil =\dfrac38\text{ inches}

3 0
3 years ago
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GIVING BRAINLIEST!!!!!
blagie [28]
Just do the inverse of the translation

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3 0
3 years ago
The pressure, P, of a gas, varies inversely with its volume, V. Pressure is measured in units of Pa. Suppose that a particular a
k0ka [10]
<span>The pressure, P, of a gas, varies inversely with its volume, V
</span>
∴ PV = k    where k is constant

<span>The  pressure is 84 Pa at a volume of 36 L.
</span>
<span>∴ at P = 84  ⇒⇒⇒  V = 36
</span>
<span>∴ K = PV = 84 * 36 = 3,024  ⇒⇒(1)</span>

If the volume is expanded to 216 L, what will the new pressure be?
We need to find P  at  V = 216
From the equation (1) ⇒⇒⇒ PV = 3024
substitute with V = 216
∴ 216 P = 3024
∴ P = 3024/216 = 14 

The correct answer is option <span>B. 14 Pa</span>



4 0
4 years ago
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yuradex [85]

Answer:

no

Step-by-step explanation:

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3 years ago
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