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3 years ago

The chart shows the number of points Jerry scored on each test this week out of the number of points possible for the test.

Mathematics

1 answer:

krok68 [10]3 years ago

7 0

Jerry did the best at Spanish so the answer is D
If you divide the numerators by the denominators of each class you get his percentage
Math - 45/50 = .9 = 90%
Science- 19/25= .76 = 76%
Music- 8/10 = .8 = 80%
Spanish 19/20 = .95 = 95%

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Adriano wants to get a new cell phone plan. Company A: $80 for a new phone in the monthly fee of $45 a month. Company B: she can

Degger [83]

Answer: it will take 2 months.

Step-by-step explanation:

Let x represent the number of months it will take for the total cost for both companies to be equal.

Company A: $80 for a new phone and the monthly fee of $45 a month. This means that the total amount that Company A charges for x months would be

80 + 45x

Company B: she can keep her all sound and pay $85 a month. This means that the total amount that Company B charges for x months would be

85x

For the total cost for both companies to be equal, the number of months would be

80 + 45x = 85x

85x - 45x = 80

40x = 80

x = 80/40 = 2

3 0

3 years ago

X − 6 = 63 − 10(x + 8)

il63 [147K]

$\red { \green {\boxed {\boxed{Answer}}}}$

$x - 6 =63 - 10(x + 8)$

$x - 6 = 63 - 10x - 80$

$x - 6 = 63 - 80 - 10x$

$x - 6 = - 17 - 10x$

$x - 6 + 10x = - 17$

$x + 10 x- 6 = - 17$

$11x - 6 = - 17$

$11x = - 17 + 6$

$11x = - 11$

$x = \frac{ - 11}{11}$

$x = - 1$

#IfWrongPleaseReport

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8 0

3 years ago

Read 2 more answers

Mrs. McDonald's students have been working very hard during class, completing all class work and homework, and even attending tu

Natali5045456 [20]

Answer:

(13+83+85+87+90+91+93+97+98+99+100+100):12= 85,33

3 0

3 years ago

A dress is marked up 16 2/3 to a final price of 140. what is the original price

rewona [7]

163.38

hope this helped!!
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3 years ago

The circumference of a circle is 9 pi.What is the area,in square inches,of a circle?Express your answer in terms of pi.

Alla [95]

Answer:

20.25π

Step-by-step explanation:

The circumference (C) of a circle is calculated using the formula

C = 2πr ← r is the radius

given C = 9π, then

2πr = 9π ( divide both sides by 2π )

r = $\frac{9\pi }{2\pi }$ ( cancel the π on numerator/denominator )

= 4.5

The area (A) of a circle is calculated using the formula

A = πr² = π × 4.5² = 20.25π

5 0

3 years ago