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DIA [1.3K]
3 years ago
5

Last month Maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. Let x re

present the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. If she hiked a total of 90 miles, which equation can be used to find the number of times Maria hiked each trail?
x + y = 90
5x – 10y = 90
90 – 10y = 5x
90 + 10y = 5x
Which shows the correct solution of the equation, when ?
Mathematics
2 answers:
cupoosta [38]3 years ago
5 0

Answer: 5x-10y=90

Step-by-step explanation:

Alisiya [41]3 years ago
3 0

Answer:

Answer: 5x-10y=90

Step-by-step explanation:

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Open Response
labwork [276]

Answer:

10 times less

Step-by-step explanation:

In the number 356, 740, the 4 is in the tenths place.

In 763,450, the 4 is in the hundredths place.

100/10 = 10

5 0
3 years ago
Please help answer ASAP
sweet-ann [11.9K]
0.77875...

which, I'm assuming, they want you to round to the nearest hundredth? So, .78?...
6 0
3 years ago
Read 2 more answers
A public health department charges $25.00 for a flu shot.The vaccine costs $0.78 per shot, a syringe costs $0.51, and the labor
AlladinOne [14]

The cost of a single shot is

.78 +.52 +.96 = 2.26

they charge 25 a shot

25 - 2.26 = 22.74

there is a profit of 22.74 per shot

22.74 * 167 =3797.58

They make $3797.58

5 0
4 years ago
A professor using an open source introductory statistics book predicts that 10% of the students will purchase a hard copy of the
Likurg_2 [28]

Answer: The professor was not accurate with his hypothesis.

Null hypothesis: P1 = 12.5%, P2 = 42.5%, P3 = 45%

The alternate hypothesis: At least one proportion of the student will differ from the others.

Step-by-step explanation: To check if the professors hypothesis were inaccurate.

What percentage of student bought a hard copy of the book.

(25 ÷ 200) × 100 = 12.5%

What percentage of the student printed it from the web.

(85 ÷ 200) × 100 = 42.5%

What percentage of the students read it online.

(90 ÷ 200) × 100 = 45%

This means that the professor was not accurate with his hypothesis. Because the proportion of student in his hypothesis was not the same in the actual.

Therefore; the null hypothesis are

P1 = 12.5%, P2 = 42.5%, P3 = 45%

The alternative hypothesis will state that at least one of the proportion will be different from the others.

5 0
3 years ago
Katya has several sources of income, listed in the table. Which are considered earned income? *****Select all that apply.******
Lady_Fox [76]

Answer: $1300 per month salary

2% commission on all sales

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3 years ago
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