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3 years ago

5

At noon, a tank contained 10cm of water. After several hours, it contained 7cm of water. What is the percent decrease of water i

n the tank?

1 answer:

Aloiza [94]3 years ago

3 0

30 percentage decrease, if you need me to explain I’ll be glad to help

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At a yearly basketball tournament, 64 different teams compete. After each round of the tournament, one-fourth of the teams remai

Margarita [4]

Answer:

64*(1/4)^x

Step-by-step explanation:

64 is the starting number because it is given, and x represents how many rounds there are. 1/4 represents how much of the teams remain after each round.

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3 years ago

One gallon of paint covers 14 square feet of wall space. Andrew is painting two walls. One is 10 feet long and 9 feet tall. The

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He will need 5 gallons of paint

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3 years ago

Which expression could be used to find the volume of the prism shown below?

AnnyKZ [126]

Answer:

11 times 8 times five

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2 years ago

Write the following equation in the general form

shtirl [24]

<h2>Explanation:</h2>

As I understand, the given equation is:

$5 y = x-1$

So we need to write this into general form. The general form of the equation of a line is given by:

$Ax + By + C = 0$

Where A and B can't be zero at the same time. So subtracting 5y from both sides:

$5y-5y = x-1-5y \\ \\ 0=x-1-5y \\ \\ \\ Arranging: \\ \\ \boxed{x-5y-1=0} \\ \\ \\ So: \\ \\ A=1 \\ \\ B=-5 \\ \\ C=-1$

6 0

3 years ago

The fee to check luggage with anew arline is based on the weightof each bag. Brett paid $7.14 tocheck a 42-pound bag. Howmuch wi

rodikova [14]

$10.71

Explanation

Step 1

you can easily solve this by using a rule of three.

Let

x represents the money Eileen will pay if her bag weighs 63 pounds

the proportion is the same

then

$\frac{7.14}{42}=\frac{x}{63}$

Step 2

solve for x

$\begin{gathered} \frac{7.14}{42}=\frac{x}{63} \\ 63\cdot7.14=42x \\ x=\frac{63\cdot7.14}{42} \\ x=\frac{449.82}{42} \\ x=10.71 \\ \end{gathered}$

I hope this helps you

5 0

1 year ago