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3 years ago

9

Two -thirds of the children in the fourth grade class are girls. If there are 18 girls, what is the total of children in the cla

ss

1 answer:

Yanka [14]3 years ago

4 0

There are 27 children in the class.

18 divided by two equals 9
9 times 3 is 27

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Step-by-step explanation:

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2 years ago

Hao has 16 gallons of water, he drinks one half gallon everyday, how many days will the water last?

Zarrin [17]

16 * 2 = 32
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ans:32 days

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3 years ago

The Fahrenheit and Celsius scales are related by the equation F=9/5C+32. What temperature is equal to a body temperature of 98.6

____ [38]

$\textbf{Substitute\ in\ the\ equation}$

$\displaystyle 98.6 = \frac{9C}{5} +32$

$\textbf{Solve\ for\ }C$

$\displaystyle 66.6 = \frac{9C}{5}$

$333=9C$

$\large C=\textbf{37 \textdegree C}$

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2 years ago

Geometry help! Picture included :)

AURORKA [14]

Set up a proprtion and cross multiply.

18/7.5=22/4x+1

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8 0

3 years ago

Evaluate the following expression (a + b)^0

elixir [45]

Answer:

So, $(a + b)^0=1$

Step-by-step explanation:

$(a + b)^0$

To evaluete this expression we apply exponential property

$x^0=1$

IF any expression has exponent 0 then the value is 1 always

for example, $3^0 =1$

$5^0=1$

$(x+2)^0=1$ because exponent is 0

So, $(a + b)^0=1$

3 0

3 years ago

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