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Alex787 [66]
3 years ago
10

Andrew got a 95% on the test. If there were 80 questions on the test, and every question worth the same, how many questions did

he answer correctly?
Mathematics
2 answers:
Lemur [1.5K]3 years ago
8 0

Answer:

Out of 80 questions Andrew did 76 questions correctly.

Step-by-step explanation:

Total number of questions is 80.

It is given that he got 95% on the test. It means he answered 95% of the total questions correctly.

First we have to calculate 95% of 80.

80\times \frac{95}{100}=76

The 95% of 80 is 76. So, 76 answers are correct.

Therefore out of 80 Andrew did 76 questions correctly.

denis-greek [22]3 years ago
7 0

Answer:

He got 76 questions right out of 80

Step-by-step explanation:

Andrew got 95% on the test

Total questions: 80

Number of quesitons Andrew got right: 95% of 80

Solving 95% of 80

= \frac{95}{100} × 80

= 0.95 × 80

= 76

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<h3>Are two vectors similar?</h3>

In this question we must prove if the vector AB is a multiple of the vector CD, that is:

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To learn more on vectors: brainly.com/question/13322477

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3 years ago
A sign standing 6 feet tall is situated 18 feet away from a flag pole. at a certain time of day the sign's shadow is 3 feet long
alexdok [17]
Observe attached picture.

On picture we have:
A = height of flagpole = x ft
B = length of flagpole's shadow = 24 ft
C = height of sign = 6 ft
D = length of sign's shadow = 3 ft

When we draw a picture representing this problem we can also add another line marked in red. This way we can see that we have two right-angle triangles. We can see that both have same angle marked with α.

We can apply trigonometry rules to find height of flagpole.

From small triangle containing sign we can find tangens function:
tan \alpha = \frac{C}{D}
Similarly we can do for large triangle containing flagpole:
tan \alpha = \frac{A}{B}

We see that these two equations have same left sides. This means that their right sides must also be same:
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Answer:

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Step-by-step explanation:

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