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sammy [17]
3 years ago
14

camilla earned a grade of 80% on a math test that has 20 problems. how many problems on this test did the student answered corre

ctly?
Mathematics
2 answers:
notsponge [240]3 years ago
4 0

Answer:

16 questions

Step-by-step explanation:

80% of 100 is 80, so we take that and divide it by 5 and we get 16.

valentinak56 [21]3 years ago
4 0

Answer:

16 out of 20

Step-by-step explanation:

IF you ever run into problems like this just go to a calculator and start dividing numbers by 20 like this example: 15 divided by 20 = .75 convert that into a percent and its 75%. Same with 16/20= 80%

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Find the area of the triangles round to the tenth. Show steps please!
amm1812

Answer:

\large\boxed{A=89.6}

Step-by-step explanation:

It's the right triangle. The formula of an area of a right triangle:

A=\dfrac{leg\cdit leg}{2}

We have:

leg=x\\leg=16\\\text{and the angle}\ \alpha=55^o

Use tangent:

tangent=\dfrac{opposite}{adjacent}

opposite=16,\ adjacent=x

\tan55^o\approx1.4281

Substitute:

\dfrac{16}{x}=1.4281        <em>convert the decimal to the fraction</em>

\dfrac{16}{x}=\dfrac{14281}{10000}          <em>cross multiply</em>

14281x=160000            <em>divide both sides by 14281</em>

x=\dfrac{160000}{14281}

x\approx11.2

Calculate the area:

A=\dfrac{(16)(11.2)}{2}=89.6

7 0
3 years ago
I really need help with these two questions pleeeaassseeee
lisov135 [29]

Answer:

10 is B

11 is D

Step-by-step explanation:

5 0
2 years ago
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Please help! This is due in 20 minutes. Please help! I will mark you the brainiest!
Amiraneli [1.4K]

Answer:

1 is no

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3 is yes

4 is a no

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6 0
3 years ago
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In a garden, 1/3 of the flower are yellow,1/6 of them are pink, and 1/3 of the remaining flowers are red.If there are 120 flower
balu736 [363]

Answer:

20 Red flowers

40 Yellow flowers

20 Pink flowers

Step-by-step explanation:

1/3 of 120 is 40

1/6 of 120 is 20

40+20=60

120-60=60

Remaining=60

1/3 of 60 is 20

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What is the product ?
ICE Princess25 [194]

Answer:

Step-by-step explanation:

[-2]

[0 ]

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3 years ago
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