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7nadin3 [17]
3 years ago
6

Ava takes guitar lessons. The lessons cost $90 each month. She has 4 lessons per

Mathematics
1 answer:
nevsk [136]3 years ago
7 0

Answer:

Its D (22.50)

Step-by-step explanation:

90÷4=22.50.

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6 over 7 subtracted by 1 over 7
Rus_ich [418]

Answer:

5/7

Step-by-step explanation:

6/7-1/7=5/7

5 0
3 years ago
Read 2 more answers
Explain how to graph a line from the following equation <br><br> A. 2x-1=y<br> B. Y=-9/2x-2/8
antiseptic1488 [7]

Answer:  its b

Step-by-step explanation:

4 0
3 years ago
The students in Ms. Dodd's class recorded the height in feet of palm trees on school property. Their heights were as follows:
dlinn [17]

Answer:

B

Step-by-step explanation:

8 0
2 years ago
Which of the following is an equation of the line through (2,3) and (-1,-12)
ahrayia [7]

Answer:

y = 5x - 7

Step-by-step explanation:

Using the equation of a line with two points

y_2 - y_1 / x_2 - x_1 = y - y_1 / x - x_1

Giving two points

( -4 , 10)(16 , -2)

x_1 = -4

y_1 = 10

x_2 = 16

y_2 = -2

Using the above formula

y_2 - y_1 / x_2 - x_1 = y - y_1 / x - x_1

-12 - 3 / -1 - 2 = y - 3 / x - 2

-15/-3 = y - 3 /x - 2

Cross multiply

-15(x - 2) = -3(y - 3)

-15x + 30 = -3y + 9

-15x + 30 + 3y - 9 = 0

-15x +30 - 9 + 3y = 0

-15x + 21 + 3y = 0

3y = 15x - 21 ( following y = mx + C

Dividing through by 3 to find y

3y/3 = 15x -21 / 3

y = 15x - 21 / 3

We can still separate

y = 15x / 3 - 21/3

y = 5x - 7

Therefore, the equation of the line is

y = 5x - 7

6 0
3 years ago
Ann purchased a prepaid phone card for $20. Long distance calls cost 11 cents a minute using this card. Ann used her card only o
inn [45]

Answer:

I believe the answer is 33 minutes.

Step-by-step explanation:

20$-16.37 is 3.63$

.11cents × 33 minutes is 3.63$

4 0
3 years ago
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