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Anettt [7]
2 years ago
7

10 4 4) Maureen has spent 12 9/10hours tutoring students in math and 6 3/4 tutoring students in science, Which choice is the bes

t estimate for how many hours Maureen has spent tutoring?
(A) 15 hours
(C) 20 hours
(B)25 hours
(D) 30 hours​
Mathematics
1 answer:
Slav-nsk [51]2 years ago
7 0

Answer:

(C) 20 Hours

Step-by-step explanation:

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Please i’m not good at math i need help i’m doing summer school online and i need help
Sati [7]

Answer:

135

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2*25/5=10

100*5=500

15*5=75

75*5=375

10+500-375=135

Hope this helps :3

8 0
3 years ago
Please help!! :D<br><br> Find the value of x.
viva [34]

Answer:

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6 0
3 years ago
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scoray [572]

Answer:

FAM, MAI and DHA, AHS

Step-by-step explanation:

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6 0
2 years ago
Solve the equation. And write all solutions in general form.
Amiraneli [1.4K]

Answer:

x = pi/2 + 2 pi n                            x = pi + 2 pi n   where n is an integer

x = 5pi /3 + 2 pi n                      

Step-by-step explanation:

8 cos^2 x + 4 cos x-4 = 0

Divide by 4

2 cos^2 x +  cos x-1 = 0

Let u = cos x

2 u^2 +u -1 =0

Factor

(2u -1) ( u+1) = 0

Using the zero product property

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u = 1/2      u = -1

Substitute cosx for u

cos x = 1/2    cos x = -1

Take the inverse cos on each side

cos ^-1(cos x) = cos ^-1(1/2)   cos ^-1( cos x) =cos ^-1( -1)

x = pi/2 + 2 pi n                            x = pi + 2 pi n   where n is an integer

x = 5pi /3 + 2 pi n                      

8 0
3 years ago
Which orderd pair is a solution of the equation-3x+5y = 2x + 3y
velikii [3]

Answer:

2y=5x

Step-by-step explanation:

-3x+5y=2x+3y

5y=5x+3y

2y=5x

4 0
3 years ago
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