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3 years ago

Stacy started with $40 in a savings account that earns 5% annually. How much interest will she get in one year?

Mathematics

2 answers:

raketka [301]3 years ago

8 0

Here is the answer enjoy

Solnce55 [7]3 years ago

7 0

Answer:

Step-by-step explanation:

She earns 5% of $40 each year. To find how much she makes in 1 year, multiply 5% and 40

40*5%

Convert 5% to a decimal by dividing by 100

5%/100=0.05

40*0.05=2

So, in one year, the account earns $2 in interest

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A cylindrical water tank has a radius of 6 feet and a height of 20 feet. A larger tank with the same height has a volume that is

likoan [24]

Answer:

Radius of large cylinder $= 10.39 feet\\$

Step-by-step explanation:

Volume of the larger tank is three times the volume of smaller tank

Volume of smaller tank

$= \pi r^{2} h\\= (3.14) * 6^{2} * 20\\= 2260.8 ft^{3} \\$

Volume of larger tank

$= 3 * 2260.8 ft^3\\= 6782.4 ft^3\\$

Or it can also be written as

$\pi r^{2} h = 6782.4 ft^3\\(3.14) * ( r^2) 20 = 6782.4 ft^3\\r^2 = 108\\r = 10.39$

6 0

3 years ago

A pyramid has a square base with sides of length s. The height of the pyramid is equal to - of the length of a side on the base.

Vera_Pavlovna [14]

<h3><u>Question:</u></h3>

A pyramid has a square base with sides of length s. The height of the pyramid is equal to 1/2 of the length of a side on the base. Which formula represents the volume of the pyramid?

<h3><u>Answer:</u></h3>

<em><u>The formula represents the volume of the pyramid is:</u></em>

$V=\frac{1}{6}s^3$

<h3><u>Solution:</u></h3>

<em><u>The volume of square pyramid is given by formula:</u></em>

$V = \frac{1}{3} a^2h$

Where, "h" is the height of pyramid

"a" is the length of side of base

Here given that, pyramid has a square base with sides of length s

Therefore,

a = s

The height of the pyramid is equal to 1/2 of the length of a side on the base

$h = \frac{1}{2} \times s\\\\h = \frac{s}{2}$

<em><u>Thus the volume of pyramid becomes:</u></em>

$V = \frac{1}{3} \times s^2 \times \frac{s}{2}\\\\V = \frac{s^3}{6}$

$\boxed{V=\frac{1}{6}s^3}$

Thus the formula represents the volume of the pyramid is $\frac{s^3}{6}$

5 0

3 years ago

Can someone plz help me solved this problem! Need help ASAP! Help me !

lana66690 [7]

Answer: 5, 8

<u>Step-by-step explanation:</u>

The difference between 3 times a number and -8 is BETWEEN 23 and 32

Note: "difference" means subtraction --> 3x - (-8) --> 3x + 8

23 < 3x + 8 < 32

15 < 3x < 24 <em> subtracted 8 from all 3 sides</em>

--> 5 < x < 8 <em>divided 3 from all 3 sides</em>

5 0

3 years ago

I need the answer for number 6 please:)

Goshia [24]

Answer: 12.5

25 / 2 = 12.5

and so does

25 x .50 = 12.5

We are just cutting the price in half, or 50%.

Hope this helps you!

5 0

3 years ago

I plant grew 3 1/4 inches over 6 1/2 month period. What was the average monthly growth rate for the plant

Sholpan [36]

Answer:

0.5 inches per a month

Step-by-step explanation:

you turn them to a decimal to make them easier and then divide them to get the answer.

6 0

3 years ago

Stacy started with $40 in a savings account that earns 5% annually. ​How much interest will she get in one year?

Stacy started with $40 in a savings account that earns 5% annually. How much interest will she get in one year?