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rusak2 [61]
3 years ago
13

HELP PLEASE 15 POINTS

Mathematics
1 answer:
vodomira [7]3 years ago
7 0
The answer is c hopefully it helps you
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Aubrey worked at the concession stand during a recent sporting event at her high school. During the first hour of the event, she
ella [17]

Answer:

cost of nachos = $3.45

Cost of tacos = $1.5

Step-by-step explanation:

Let

x = cost of nachos

y = cost of tacos

11x + 18y = 64.95 (1)

6x + 15y = 43.20 (2)

Multiply (1) by 6 and (2) by 11 to eliminate x

66x + 108y = 389.70

66x + 165y = 475.20

Subtract to eliminate x

165y - 108y = 475.20 - 389.70

57y = 85.50

y = 85.50/57

y = 1.5

Substitute y = 1.5 to find x

11x + 18y = 64.95 (1)

11x + 18(1.5) = 64.95

11x + 27 = 64.95

11x = 64.95 - 27

11x = 37.95

x = 37.95/11

x = 3.45

cost of nachos = $3.45

Cost of tacos = $1.5

8 0
3 years ago
What is decimal of 2 2/9​
Ghella [55]

Answer:

2.22

Step-by-step explanation:

To get 2 2/9 in decimal form, we basically convert the mixed number to a fraction and then we divide the numerator of the fraction by the denominator of the fraction. Here are the detailed math steps we use to convert 2 2/9 mixed number to decimal form:

Step 1: Multiply the whole number by the denominator:

2 × 9 = 18

Step 2: Add the product you got in Step 1 to the numerator:

18 + 2 = 20

Step 3: Divide the sum from Step 2 by the denominator:

20 ÷ 9 = 2.222222

That's it! The answer to 2 2/9 in decimal form is displayed below:

2 2/9 ≈ 2.22

7 0
3 years ago
Nine -tenths of zak's friends do volunteer work after school. what is nine-tenths in standard form?
alisha [4.7K]
9/10 = 0.9 = (9) 1 tenths.
8 0
2 years ago
Suppose that you saw 240 minutes of commercials this week. How many hours of commercials did you see?
kicyunya [14]

Answer:

4 hours

Step-by-step explanation:

240÷60=4 hours

3 0
3 years ago
4<br>Order these decimals, starting with the smallest<br>7.96<br>9.61<br>9.534<br>9.5<br>9.53​
Studentka2010 [4]

Answer:

7.96,9.5,9.53,9.534,9.61

7 0
2 years ago
Read 2 more answers
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