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LenaWriter [7]
2 years ago
11

What is the constant of proportionality

Mathematics
2 answers:
Andrei [34K]2 years ago
7 0
It is 45, u just have to divide miles by hours and u get your answer
melisa1 [442]2 years ago
5 0

Step-by-step explanation:

“The constant of proportionality is the ratio between two directly proportional quantities. Two quantities are directly proportional when they increase and decrease at the same rate.”

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Santino bought a book for $23.54. The price of the book was $22. What was the sales-tax rate?
Vika [28.1K]

We first find value of tax in dollars.

The difference between the two prices  is: 23. 54 - 22 = 1.54

Therefore the sales tax in dollars is 1.54

The tax % will be  (amount of tax / original cost price ) × 100

(1.54 / 22) × 100 → (0.07) × 100 =  7

So the tax rate is 7%

We can double check the answer.

7 % of 22  → (7/100) × 22 → 0.07 × 22 = 1.54

22 + 1.54 = 23.54

6 0
3 years ago
The internal dimension of a cylindrical container has a base area of 20 cm^2 and a height of 10 cm. What is the internal volume
yawa3891 [41]

Answer:

<u><em>C) 200 cm^3 </em></u>

<u><em></em></u>

Step-by-step explanation:

we observe that

Area=20 cm² and   Height=10 cm

The  formula to find volume is :

Volume= Area×Height

putting the values of area and height in above formula,we get

Volume= 20 cm²×10 cm

Volume= 200 cm³

The internal volume of the container is 200 cm³.

hope this helps

5 0
3 years ago
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6 0
3 years ago
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Jonathan is planning a party at the skating rink. The cost for each person attending is 3.50 for sate rental and $5.00 for food.
Zina [86]

He can only invite 35 people

the cost per person = $3.50 + $5.00 = $8.50

dividing $300 by $8.50 determines the amount he can invite

\frac{300}{8.5} = 35.29411...

He can invite 35 people at a cost of $8.50 × 35 = $297.50


7 0
3 years ago
How many solutions does this system have?
Alecsey [184]

Answer:

C. infinite

Step-by-step explanation:

Both of the equations overlap so there are infinite solutions to the system of equations.

If this answer is correct, please make me Brainliest!

8 0
3 years ago
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