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Sphinxa [80]
3 years ago
13

You are planning a party. You want to rent a snow cone machine, and the snow cone company charges a $25 set-up fee plus $15 per

hour to rent the equipment. Which of these algebraic expressions represents the total cost for the machine for h hours? Explain how you know. 15h + 25 or 15(h + 25)
Mathematics
2 answers:
dezoksy [38]3 years ago
5 0
The answer would be 15h+25 because h isthe variable representing hours and they charge $15 for every hour. And also, the plus 25 is for the setup fee.
shtirl [24]3 years ago
4 0
15h+25 just means that you have to pay 15 dollars every hour you use the snow cone machine, (the h represents hours), and you have to pay an extra charge of 25 dollars, so you would add that to the number you get with 15h. Lets say you used the machine for 3 hours. you would put the three in the position of the h. Then the equation would say 15(3)+25. so that would be 45+25 which is 70. Now with the next equation 15(h+25) its pretty much the same thing. So we can use the example we used before and we will get the same answer. So 15(3+25). You have to first multiply, (always multiply first), so 15(3) again which equals 45, plus 25 is still 70, so whatever number you use for each equation, you will always get the same answer. Hope this helps! :)
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Enya walked 2km 309m from school to the store. Then, she walked from the store to her home. If she walked a total of 5km, how fa
RSB [31]

Answer:

2 km 691 m

Step-by-step explanation:

5 km - 2 km 309 m

= 5000 m - 2309 m

= 2691 m

= 2 km 691 m

7 0
2 years ago
One year Perry had the lowest ERA​ (earned-run average, mean number of runs yielded per nine innings​ pitched) of any male pitch
Blizzard [7]

Answer:

z score Perry z=-1.402

z score Alice z=-1.722

Alice had better year in comparison with Perry.

Step-by-step explanation:

Consider the provided information.

One year Perry had the lowest ERA​ of any male pitcher at his​ school, with an ERA of 3.02. For the​ males, the mean ERA was 4.206 and the standard deviation was 0.846.

To find z score use the formula.

z=\frac{x-\mu}{\sigma}

Here μ=4.206 and σ=0.846

z=\frac{3.02-4.206}{0.846}

z=\frac{-1.186}{0.846}

z=-1.402

Alice had the lowest ERA of any female pitcher at the school with an ERA of 3.16. For the​ females, the mean ERA was 4.519 and the standard deviation was 0.789.

Find the z score

where μ=4.519 and σ=0.789

z=\frac{3.16-4.519 }{0.789}

z=\frac{-1.359}{0.789}

z=-1.722

The Perry had an ERA with a z-score is –1.402. The Alice had an ERA with a z-score is –1.722.

It is clear that the z-score value for Perry is greater than the z-score value for Alice. This indicates that Alice had better year in comparison with Perry.

7 0
2 years ago
NEED HELP ASAP!!!! WILL MARK BRAINLIEST!!!!
viva [34]

Answer:

20

Step-by-step explanation:

3 0
2 years ago
In the problem 8^3 - 10 × 5 - 4, which step should you perform first?
Doss [256]

Answer:

PEMDAS

Step-by-step explanation:

P=Parenthesis

E=Exponent

M=Multiply

D=Division

A=Addition

S=Subtract

7 0
3 years ago
Read 2 more answers
The two triangles shown below are simiar. Which statement is true of the transformation from ABC to A' B' C'
AfilCa [17]

Answer: Thus when transforming from ABC to A'B'C', the lengths are scaled by a factor of 0.5 .

Step-by-step explanation:

Since the triangles are similar, the ratio of their sides are equal.

And we can count the number of blocks over which AC and A'C' is drawn and take them to be their length,

Therefore,

AC = 16

A'C'= 8

Thus when transforming from ABC to A'B'C', the lengths are scaled by a factor of 0.5 .

Measuring the tans of the angles by taking the ratio of opposite by adjacent, we get,

tanA = \frac{10}{4}

tanA'=\frac{5}{2}

which means tanA= tanA'

The angles do not change.

Thus when transforming from ABC to A'B'C', the lengths are scaled by a factor of 0.5 .

8 0
3 years ago
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