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nordsb [41]
3 years ago
11

What is -18x + 9x – 21 + 3 = -99

Mathematics
2 answers:
makkiz [27]3 years ago
6 0
-9x-18
Hope this helps
Igoryamba3 years ago
5 0

Answer:

X = 9

Step-by-step explanation:

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Dave has 8000 to invest for 15 years. He finds a bank that offers an interest rate of 3.1% compounded monthly. How much money wi
Lynna [10]

Answer: he will have $12720 after 15 years

Step-by-step explanation:

We would apply the formula for determining compound interest which is expressed as

A = P(1 + r/n)^nt

Where

A = total amount in the account at the end of t years

r represents the interest rate.

n represents the periodic interval at which it was compounded.

P represents the principal or initial amount deposited

From the information given,

P = $8000

r = 3.1% = 3.1/100 = 0.031

n = 12 because it was compounded 12 times in a year.

t = 15 years

Therefore,

A = 8000(1 + 0.031/12)^12 × 15

A = 8000(1 + 0.00258)^180

A = 8000(1.00258)^180

A = $12720

4 0
3 years ago
Can someone help me with these I don’t understand at all
cupoosta [38]

Answer:

#1: ????

#2: \frac{3}{4} x 15

#3: \frac{7}{8} ÷ \frac{3}{4}

Step-by-step explanation:

For #2:

\frac{3}{4} x 15.

It's that because there are 3/4 cups of honey for one cake. To use for 15 cakes, you would have to multiply it by 15.

For #3:

\frac{7}{8} ÷ \frac{3}{4}.

It's that because the baker has 7/8 cups of honey. It takes 3/4 cups of honey for one cake. So you have to divide it by 3/4 cups in order to find out how many cakes.

Hope this helped! <3

7 0
3 years ago
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