3 years ago

On a driving test, Roxane answered 70% of the 20 questions correctly. How many questions did

Mathematics

2 answers:

Alona [7]3 years ago

7 0

Answer:

She answered 14 questions correctly.

Step-by-step explanation:

Hope this helps

Nikitich [7]3 years ago

4 0

She got 14 questions right

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The multiplicative inverse of -7/8 is

suter [353]

7/8 is a answer of this question

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3 years ago

the length of a rectangle is 8 less than twice the width. the perimeter is 38 feet. Find the length and width. someone please he

Aleksandr-060686 [28]

Answer:L=4 W=15

Step-by-step explanation:

P=2L+2W

38-8=30

If length is 8 less than twice the width and the perimeter is 38, then subtract 38-8 which is 30, then divide 30 by 2 to get 15.

P=2(4) +2(15)

P=38

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2 years ago

What is the volume of the cone with diameter 7in and height 9in? Round to the nearest cubic inch

dezoksy [38]

Diameter = 7 cm
radius = 7÷2 = 3.5
Volume of cone = 1/3 $\pi r^{2} h$
Volume of cone = 1/3 $\pi 3.5^{2} (9)$ = 115 cubic inches (Answer B)

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3 years ago

Read 2 more answers

Suppose m varies directly as the square of n.<br> If m = 187.2 when n = 12, what is m when n = 20?

Alona [7]

Answer below as attachment. m=520

3 0

2 years ago

Help me please ASAP

Mashutka [201]

Answer: $\frac{5}{35}$

Step-by-step explanation:

Since, the total number of contestant = 7,

Thus, the probability that out of 3 contestant, me and my friend is chosen

= $\frac{2_C_2\times 5_C_1}{7_C_3}$

= $\frac{\frac{2!}{2!0!}\times \frac{5!}{1!\times 4!}}{\frac{7!}{4!\times 3!}}$

= $\frac{1\times 5}{\frac{7\times 6\times 5\times 4!}{4!\times 6}}$

= $\frac{5}{35}$

⇒ Third Option is correct.

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3 years ago