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melisa1 [442]
3 years ago
13

Helppppp i need to round the answer to one decimal place

Mathematics
1 answer:
otez555 [7]3 years ago
7 0

Answer:

4.5 , and my answer needs to be 20 characters long, but I'm pretty sure it's 4.5

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3. What amount of money is necessary to be invested at 5% simple interest to yield $320 in interest after 4 years?
Simora [160]

Answer:

Amount = \$1920

Step-by-step explanation:

Given

Interest =\$320

Rate = 5\%

Years = 4

Required

Determine the invested amount

First, we need to determine the Principal

This is calculated as:

Interest = Principal * Rate * Time

Solve for Principal

Principal = \frac{Interest}{Rate * Time}

Principal = \frac{\$320}{0.05 * 4}

Principal = \frac{\$320}{0.2}

Principal = \$1600

Add the principal to the interest

Amount = Principal + Interest

Amount = \$1600 + \$320

Amount = \$1920

7 0
3 years ago
Someone please help me i don’t understand
frutty [35]

Answer:

Answer B

Step-by-step explanation:

Write out f(x) and g(x) in a column; we will subtract g(x) from f(x):

f(x) = x^2  - 9          or f(x)   =   x^2           - 9

-g(x) = -(2 - x)          or -g(x) =           +x      -2

                                    ---------------------------------

                                      f(x) - g(x) = x^2 + x - 11   (Answer B)

6 0
3 years ago
Somebody help plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz im not smarttttttttttttttttttttttttttttttttt
LiRa [457]

Answer:

140

Step-by-step explanation:

multiply 5x4x7 and u will get ur answer

7 0
3 years ago
Gary has 32 ounces of soda. He shares it with 3 of his friends., splitting the soda evenly into 4 cups. He drinks 8 ounces of so
Norma-Jean [14]

0 ounces, when you split between four people there are 8 Oz in each cup, therefore he drank the whole cup.

8 0
4 years ago
Read 2 more answers
The Federal Pell Grant Program gives grants to low-income undergraduate students. According to the National Postsecondary Studen
Gekata [30.6K]

Answer: the t-test statistic is - 1.77

Step-by-step explanation:

For the null hypothesis,

H 0: μ = 2600

For the alternative hypothesis,

H a: μ ≠ 2600

This is a two tailed test

Since no population standard deviation is given, the distribution is a student's t.

Since n = 50,

Degrees of freedom, df = n - 1 = 50 - 1 = 49

t = (x - µ)/(s/√n)

Where

x = sample mean = $2450

µ = population mean = $2600

s = samples standard deviation = $600

Therefore,

t = (2450 - 2600)/(600/√50) = - 1.77

3 0
3 years ago
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