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3 years ago

Can you guys help me please.

Mathematics

1 answer:

Norma-Jean [14]3 years ago

6 0

Answer:

question 1: answer is 4

question 2: answer is 1

Step-by-step explanation:

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Marilyn knows that she needs $45,000 for a down payment on a house. She found an investment that earns 3.15% interest compoundin

laila [671]

She should save $38,450.39.

The formula for the amount of money in an interest-bearing account that is compounded is

$A=p(1+\frac{r}{n})^{nt}$

where A is the total amount in the account, p is the amount of principal invested, r is the interest rate as a decimal number, n is the number of times per year interest is compounded, and t is the number of years. Using our information we have:

$45000=p(1+\frac{0.0315}{12})^{12\times5}
\\
\\45000=p(1.002625)^{60}$

Divide both sides:
$\frac{45000}{1.002625^{60}}=\frac{p(1.002625)^{60}}{1.002625^{60}}
\\
\\38450.39=p$

5 0

3 years ago

Is 4b²+40b+20 a perfect square

Pavel [41]

Answer:

No.

Step-by-step explanation:

It is not because 20 is not a perfect square.

6 0

3 years ago

On Monday, Tiffany's plant was 2 2/4 inches

Zinaida [17]

Answer:

5 5/8 in. long

Step-by-step explanation:

8 1/8-2 2/4 (4/8)= 5 5/8

8 0

3 years ago

A carpenter bought 5 identical boxes of nails. She used 25 nails fir a project and now has 435 nails left. Which equation can be

stiks02 [169]

Answer:

The equation that can be solved to find the number of nails in each box =

5x = 460

The number of nails in each box = 92 nails

Step-by-step explanation:

A carpenter bought 5 identical boxes of nails. She used 25 nails for a project and now has 435 nails left. Which equation can be solved to find the number of nails in each box.

Let the number of nails in each box be represented by x

Therefore our Equation =

5x = 25 + 435

5x = 460

Solving for x

5x/5 = 460/5

x = 92 nails

Therefore, the number of nails in each box = 92 nails

5 0

3 years ago

Which question(s) could be answered by collecting data that has variability? Click on each statistical question. To change an an

Annette [7]

Answer:

A statistical question is one that can be answered in numbers.

4 0

3 years ago