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AleksandrR [38]
2 years ago
13

Stefan sells Jin a bicycle for $138 and a helmet for $18. The total cost for Jin is 130% of what

Mathematics
1 answer:
lys-0071 [83]2 years ago
5 0

Answer:

1. $109.20 2. $46.80

Step-by-step explanation:

Doing the math, we find that 30% of 156 (138+18) is 46.80, which answers the second part of this problem. Plugging this value into the first part of the equation gives us what Stefan originally paid.

Good luck! Hope this helps!

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At parks elementary hot sandwiches are served on Mondays and Thursdays tacos on Tuesdays and salads on Wednesday’s if pizza was
Dimas [21]

Answer: Friday


Step-by-step explanation: If you had hot sandwiches, tacos, and salad on every day of the week except for Friday, then pizza would be served on Friday. Hope this helped!


4 0
3 years ago
A teacher writes a simple computer program where she can type students name and computer tells her the students birthday.
Vikki [24]

Considering that each student has only one birthday, each input will be related to only one output, hence this relation is a function.

<h3>When does a relation represent a function?</h3>

A relation represents a function when each value of the input is mapped to only one value of the output.

For this problem, we have that:

  • The input is the student's name.
  • The output is the student's birthday.

Each student has only one birthday, hence each input will be related to only one output, hence this relation is a function.

More can be learned about relations and functions at brainly.com/question/12463448

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5 0
1 year ago
Is the height of 6 and the volume of 96 proportional to the height of 4 and the volume of 64​
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Answer:

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8 0
2 years ago
Read 2 more answers
I need these numbers in scientific notation, please! Thank you!
Shkiper50 [21]

\text{The scientific notation:}\\\\a\cdot10^k\ \text{where}\ 1\leq a

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4 0
3 years ago
A train leaves San Diego at 1:00 pm. A second train leaves the same city in the same direction at 3:00 pm. The second train trav
Soloha48 [4]

Answer:

The speed of the first train is 45 mph and the speed of the second train is 75 mph

Step-by-step explanation:

Let x represent the speed of the first train in mph. Since the second train, is 30 mph faster then the first, therefore the speed of the second train is (x + 30).

The first train leaves at 1:00 pm, therefore at 6:00 pm, the time taken is 5 hours. Therefore the distance covered by the first train at 6:00 pm = x mph * 5 hours = 5x miles

The second train leaves at 3:00 pm, therefore at 6:00 pm, the time taken is 3 hours. Therefore the distance covered by the second train at 6:00 pm = (x + 30) mph * 3 hours = (3x + 90) miles

Since the second train overtakes the first at 6:00 pm, hence:

3x + 90 = 5x

2x = 90

x = 45

Therefore the speed of the first train is 45 mph and the speed of the second train is 75 mph (45 mph + 30 mph).

7 0
3 years ago
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