3 years ago

A stereo normally priced at $399 is on sale for 15% off. Find the discount and the sale price.

1 answer:

5 0

Answer
Discount:$59.85
Sales price:$339.15

Multiply$399 by 15% or 0.15 to get the discount of 59.85 and subtract 399 by discount to get sales price.

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If 139 is added to a number, the result is 44 less than four times the number. Find the number. Step 1 of 2: Use the variable x

lorasvet [3.4K]

Answer:

Step-by-step explanation:

let the number = X

If 139 is added, it becomes= X +139

the result becomes 44less than four time the number

= 4(39)-44 = 156-44 =112

the set up equation becomes

X +39 = 112

solving for the value of X

X = 112-39

X = 73

4 0

2 years ago

Please help

iren2701 [21]

For question 1:
1% = 120 ÷ 100 = 1.2
15% = 1.2 × 15 = 18
So, 15% of 120 is 18

For question 2:
68.4 ÷ 72 = 0.95
0.95 × 100 = 95%
So, the percentage is 95%

For question 3,
1% = 12.5 ÷ 8 = 1.5625
100% = 1.5625 × 100 = 156.25
So, 8% of 12.5 is 156.25.

For question 4,
1% = 48 ÷ 40 = 1.2
100% = 1.2 × 100 = 120
So, 40% of 48 is 120.

For question 5,
1% = 195 ÷ 100 = 1.95
62.5% = 1.95 × 62.5 = 121.875
So, 62.5% of 195 is 121.875

8 0

3 years ago

3x + 2 = 11 what is x?

nevsk [136]

Answer:

x = 3

Step-by-step explanation:

3x + 2 = 11

-2 -2

3x = 9

÷3 ÷3

x = 3