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frutty [35]
3 years ago
14

A woman put 580$ into a savings account for one year. The rate of interest on the account is 6.5% how much was the interest

Mathematics
1 answer:
WITCHER [35]3 years ago
7 0
The interest is 37.7$
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Which is equal to 7 X 8? O A. (6x8)+7 O B. (6x7) + 8 O C. (7x7)+7 D. ( 77) + 8​
astraxan [27]

Answer:

D. 77 + 8

Step-by-step explanation:

7 x 8 = 56

now try the other problems

A. 6 x 8 = 48

B. 6 x 7 = 42

C. 7 x 7 = 49

D. 77 + 8 = 56

D is the answer

6 0
3 years ago
-8(r-2)=40 what is the answer to this equation
Elena-2011 [213]
The answer is r=-3. You use the distributive property which is basically multiplying -8 with all the numbers inside the parenthesis. So -8 x r and -8 x -2. This results to -8r+16=40 (Two negative numbers multiplied together will form a positive number). We use inverse operations to subtract 16 from both sides. 16-16 is 0 and 40-16 is 24. So we are left with -8r=24. We want to be left with only r, so we once again use inverse operations to divide -8 from both sides. -8/-8 is 1, and 24/-8 is -3. So we end up with r=-3. Hope this helped :]
6 0
3 years ago
Blake has a glass tank. First, he wants to put some marbles in it, all of the same volume. Then, he wants to fill the tank with
NeTakaya

Answer:

32 liters is the volume of the glass tank

3 0
2 years ago
How would the sum of cubes formula be used to factor x3y3 + 343? Explain the process. Do not write the factorization.
Svetllana [295]

Answer:

Given : Expression -x^3y^3+343

To find : How would the sum of cubes formula be used to factor given expression? Explain the process. Do not write the factorization.

Solution :

The formula of sum of cubes is,

a^3+b^3=\left(a+b\right)\left(a^2-ab+b^2\right)

First we convert the given expression in a^3+b^3

x^3y^3+343

Apply exponent rule : a^mb^m=(ab)^m

x^3y^3=(xy)^3

Rewrite 343=7^3

Therefore, x^3y^3+343  could be written as =\left(xy\right)^3+7^3

On comparison with the formula,

a=xy , b=7

\left(xy\right)^3+7^3=(xy+7)(xy^2-xy(7)+7^2)

\left(xy\right)^3+7^3=(xy+7)((xy)^2-7xy+49)            

5 0
3 years ago
Read 2 more answers
F(x)=-x^3-x^2+1 what is f(-1)
xxMikexx [17]
-1^3 - -1^2 +1= -1. ...........
8 0
3 years ago
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