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3 years ago

8

Filmore has invested $10,000 in an account to help pay for his grandson’s education. He expects the account to return 4.5% annua

lly. Use the rule of 72 to estimate how long it will take the $10,000 to double in value.

1 answer:

My name is Ann [436]3 years ago

6 0

Answer:

shifter yogurt EUR 3:7

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Please please please help. Thank you.

Darina [25.2K]

The formula of a volume of pyramid:

$V=\dfrac{1}{3}Bh$

$B=13\cdot13=169\ cm^2$

$h=9\ cm$

substitute

$V=\dfrac{1}{3}\cdot169\cdot9=169\cdot3=507\ cm^3$

3 0

3 years ago

Explain your answer please

yaroslaw [1]

Answer: I don’t know what we’re doing addition ? Multi plaid action?

Step-by-step explanation:

3 0

3 years ago

A truck delivers 478 dozen eggs to stores in one day. Write an expression that finds the number of eggs the truck delivers in on

Serga [27]

12 in a dozen so

474x÷12

x represents the amount the truck delivers in a day

6 0

4 years ago

The intake pipe can fill a certain tank in 6 hours when the outlet pipe is closed, but when the outlet pipe is open it takes 9 h

Lilit [14]

Answer:

18 hours

Step-by-step explanation:

The unit rate of intake pipe is $\frac{1}{6}$ [1 tank in 6 hours]

The total unit rate (combined) when 2 work together is $\frac{1}{9}$ [1 tank in 9 hours]

Intake fills up and outlet empties. Thus we can say:

Rate of Intake - Rate of Outlet = Combined Rate

This becomes:

$\frac{1}{6}-x=\frac{1}{9}$

Where x is the rate of outlet pipe [what we are looking for]

Doing algebra we solve for x:

$\frac{1}{6}-x=\frac{1}{9}\\\frac{1}{6}-\frac{1}{9}=x\\x=\frac{9-6}{54}\\x=\frac{3}{54}$

This means "outlet pipe can empty 3 tanks in 54 hours". So that would mean 54/3 = 18 hours to empty 1 tank

3 0

4 years ago

Someone please help me answer number 6

stich3 [128]

You would first Multiply both sides by 3x+7
The solution or the value of x would be -12

4 0

3 years ago