Amir has spent the last three months saving money for a $1,400 computer in his local electronics store. so far he has saved $1,200. today, he receives an email saying that all computers in the store are 25% off for one day only.
if the sales tax charged at the counter is 7%, does amir have enough money to purchase the computer today?
select one:
a. no, amir needs about $25 more.
b. yes, amir has the exact amount needed.
c. yes, amir has about $25 more than he needs.
d. yes, amir has about $75 more than he needs.

Hey!

Solution:

Convert 25% to a decimal.

25% = 0.025

Find discount.

1,400 x 0.25 = $350

Subtract.

1,400 - 350 = $1,050

Convert 7% to a decimal.

7% = 0.07

Multiply.

1,050 x 0.07 = $73.50

Add.

1,050 + 73.50 = $1,123.50

Subtract.

1,200 - 1,123.50 = 77.50

Round.

77.50 = 75

D. Yes, Amir has about $75 more than he needs.

Hope This Helped! Good Luck!

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional