3 years ago

A test has 20 questions how many do you need to answer correctly in order to get 4/5 of them right

2 answers:

Ket [755]3 years ago

7 0

4/5 x 20 = 16

Answer: 16 questions

lora16 [44]3 years ago

5 0

To figure out the question, we can do 20 multiplied by 4/5, aka 0.8, and we get 16 questions as our answer!

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DaniilM [7]

Answer:

-33/4 or -8 1/4

Step-by-step explanation:

Make similar terms:

-5/4 - 28/4: then solve

-5 - 28 = -33: put over 4

-33/4: simplify

-8 1/4

7 0

2 years ago

lina2011 [118]

2/3 < 3/4. Hope that helps

3 0

2 years ago

Margaret [11]

These could be some possible amswers:2/8, 8,32, 3/12

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2 years ago

Vladimir [108]

Answer:

a) (x+2)(x+3)

b) (x+2)(x+3)=0, x=-2 and x=-3

Step-by-step explanation:

3 0

2 years ago

Airida [17]

Answer:

Sin A = $\frac{opposite}{hypotenuse} =\frac{32}{40} =\frac{4(8)}{5(8)} =\frac{4}{5}$
Cos C = $\frac{adjacent}{hypotenuse} =\frac{16}{34}=\frac{2(8)}{2(17)} =\frac{8}{17}$
Tan A = $\frac{opposite}{adjacent} =\frac{21}{20}$

8 0

2 years ago