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aev [14]
3 years ago
15

Noah and his friend Tyree are involved in a math challenge. Noah solves 115 problems in 2 min. Tyree solves 172.5 problems in 3

min. Who solves more problems per minute? Question 4 options: A) Noah solves more per minute B) Tyree solves more per minute C) They solve the same number of problems per minute D) Not enough information
Mathematics
2 answers:
Natasha2012 [34]3 years ago
6 0

C) They solve the same number of problems per minute

172.5 Divided by 2

115 divided by 2

= 57.5

bonufazy [111]3 years ago
6 0

Answer:

C) They solve the same number of problems per minute

because

115 / 2 = 57. 5

172.5 /2 = 57.5

Step-by-step explanation:

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VladimirAG [237]

Step-by-step explanation:

I think no. C is the answer. Please let me know by comment I am wrong or right

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3 years ago
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Which equation can be used to solve for b? Triangle A B C is shown. Angle A C B is 90 degrees and angle C B A is 30 degrees. The
STALIN [3.7K]

Answer:

b=(8)tan(30\°)

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

In the right triangle ABC, the tangent of angle of 30 degrees is equal to divide the opposite side to the angle of 30 degrees (AC) by the adjacent side to the angle of 30 degrees (BC)

tan(30\°)=AC/BC

substitute the given values

tan(30\°)=b/8

Solve for b

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3 years ago
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Teri incorrectly solved the system of equations below. Correctly identify the error Teri made. 2x - 10 y = -30 x - 5y = 20 Step
umka21 [38]

Answer:

See explanations below

Step-by-step explanation:

Given the system of equation

2x - 10 y = -30 ... 1

x - 5y = 20 ... 2

Step: From 2;

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Step 2: Substitute equation 3 into 1

2x - 10y = -30

2(5y+20) - 10y = -30

Open the bracket

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10y - 10y + 40 = -30

0+40 = -30

40 = -30

The steps taken by Teri are correct all through. He didn't make any error whatsoever

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Answer:

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Step-by-step explanation:

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