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Deffense [45]
3 years ago
10

Tori spends equal amounts of time on homework from each of her subjects. She spends 1 hour altogether on her homework each night

. If Tori spends 1/4 an hour on Chemistry, how many subjects does she study?
Mathematics
1 answer:
Montano1993 [528]3 years ago
7 0

Answer:

4

Step-by-step explanation:

Quarter hour on chemistry

Quarter hour on class 2

Quarter hour on class 3

Quarter hour on class 4

Total time....One hour

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F(x) = -402 + 4x – 4<br> Find f(3)
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3 years ago
Help meeee 15 points
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Answer:

2700

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3 years ago
Cameron pays $.95 per song with his current music service Cameron's friend tells him of another service that has a $15 joining f
natali 33 [55]

Answer

Step-by-step explanation:The fine schedule for overdue books at the county library is modeled by the values in the table.

Library Fines for Overdue Books

Days overdue

Amount of fine

0

0 ¢

2

5 ¢

4

10 ¢

6

15 ¢

8

20 ¢

10

25 ¢

Which equation best models the fine schedule for overdue books?

y = five-halves x, where x is the cost in cents for a book that is y days overdue

y = five-halves x, where y is the cost in cents for a book that is x days overdue

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7 0
3 years ago
The function f(r) = π determines the area of a circle in cm2, A, in terms of the radius of the circle in cm, r. a. Write a funct
ollegr [7]

Answer with Step-by-step explanation:

We are given that

a.f(r)=\pi r^2

A=\pi r^2

r^2=\frac{A}{\pi}

g(A)=r=\sqrt{\frac{A}{\pi}}

b.Radius=2.58 cm

Substitute the values in the formula and \pi=3.14

f(2.58)=3.14(2.58)^2=20.9 cm^2

Hence, the area of circle =20.9 square cm

c.Area of circle=1530 square cm

r=\sqrt{\frac{1530}{3.14}}=22.07 cm

Hence, the radius of circle=22.07 cm

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Area of circle of radius 15.1 cm=A_2=3.14(15.1)^2=715.95 cm^2

A_1-A_2=725.47-715.95=9.52 cm^2

Hence, the area of circle whose radius is 15.2 cm is greater than the area of circle of radius 15.1 cm by 9.52 square cm .

6 0
3 years ago
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