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anzhelika [568]

3 years ago

10

Eva bought a book that was on sale for 20% off the retail price. The retail price of the book was $12. What was the price Eva pa

id for the book?

1 answer:

sp2606 [1]3 years ago

7 0

Answer:

$2.4

Step-by-step explanation:

12×20/100

240/100

2.4

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Rainbow [258]

Answer:

8 one-dollar bills

3 five-dollar bills

2 ten-dollar bills

Step-by-step explanation:

Let x = # of one-dollar bills, y = # of five-dollar bills, and z = # of ten-dollar bills. Total amount in the wallet is $43, so the first equation would be 1x + 5y + 10z = 43. Next, there are 4 times as many one-dollar bills as ten-dollar bills, so x = 4z. There are 13 bills in total, so x + y + z = 13

x + 5y + 10z = 43

x = 4z

x + y + z = 13

x + 5y + 10z = 43

x + 0y - 4z = 0

x + y + z = 13

5y + 14z = 43

-y - 5z = -13

5y + 14z = 43

-5y - 25z = -65

-11z = -22

z = 2

x = 4z

x = 4*2 = 8

x + y + z = 13

8 + y + 2 = 13

10 + y = 13

y = 3

3 0

2 years ago

A student desired to invest $1,540 into an investment at 9% compounded semiannually for 6 years. With all else equal, what is th

irga5000 [103]

Answer:

The future value of this initial investment after the six year period is $2611.6552

Step-by-step explanation:

Consider the provided information.

A student desired to invest $1,540 into an investment at 9% compounded semiannually for 6 years.

Future value of an investment: $FV=P(1+r)^n$

Where Fv is the future value, p is the present value, r is the rate and n is the number of compounding periods.

9% compounded semiannually for 6 years.

Therefore, the value of r is: $r=\frac{0.09}{2}=0.045$

Number of periods are: 2 × 6 = 12

Now substitute the respective values in the above formula.

$FV=1540(1+0.045)^{12}$

$FV=1540(1.045)^{12}$

$FV=1540(1.69588)$

$FV=2611.6552$

Hence, the future value of this initial investment after the six year period is $2611.6552

6 0

4 years ago

The quotient of twice a number t and 12

frez [133]

$\boxed{2t:12=\frac{2t}{12}}=\frac{t}{6}$

4 0

3 years ago

Read 2 more answers

Find profit or loss percent if CP-Rs 900 and loss =Rs 360

guapka [62]

loss%=loss/CP×100%

=Rs.360/Rs.900×100%

=Rs. 360/9

loss% =40% ans

4 0

3 years ago

Write x2 − 2x − 3 = 0 in the form (x − a)2 = b, where a and b are integers

slamgirl [31]

Your answer is C
It's hard to describe I did it all in my head but please trust me that C is correct

5 0

3 years ago

Read 2 more answers