Ask question

Ask question

All categories

4 years ago

8

As student received a 75% on an exam. If there were 20 questions on the exam which ratio would show the number of questions answ

ered correctly

2 answers:

sergejj [24]4 years ago

7 0

75% times 20=15 so he got 15 correct

Luda [366]4 years ago

7 0

The answer is 15:20 i believe

You might be interested in

13 is 26 percent of what number

Nataliya [291]

We have an equation: 13/?= 26/100

Cross multiply:
26*?= 13*100
⇒ ?= 13*100/26= 50

13 is 26% of 50~

6 0

3 years ago

Read 2 more answers

Help The area of a square

DIA [1.3K]

Answer:

$2551\dfrac{1}{2}$

Step-by-step explanation:

$\bf l = 20\dfrac{\sf 1}{4} \ in = \dfrac{81}{4} \ in$

$\bf w = 10\dfrac{1}{2} = \dfrac{21}{2} \ in\\\\\\h = 12 \ in$

Volume of rectangular prism = l*w*h

$= \dfrac{81}{4}*\dfrac{21}{2}*12\\\\\\= 81 *\dfrac{21}{2}*3\\\\\\= \dfrac{5103}{2}\\\\\\= 2551 \dfrac{1}{2} \ cubic \ inches$

3 0

2 years ago

Read 2 more answers

Expand & simplify

Wittaler [7]

Answer:

6(2a+4)-4(3a-4)= (12a+24) +(-12a+16) = 40

4 0

2 years ago

There are 12 inches in 1 foot. this is equivalent to 60 inches in 5 feet. which proportions can be used to represent this? check

Leno4ka [110]

Answer:12/1=60/5. 1/2=5/60

Step-by-step explanation:

Just took the test

4 0

3 years ago

Read 2 more answers

How do you solve: cos(x-π/3)=-1

gladu [14]

Answer:

x = $\frac{4\pi }{3}$

Step-by-step explanation:

given

cos(x - $\frac{\pi }{3}$ ) = - 1, then

x - $\frac{\pi }{3}$ = $cos^{-1}$ (- 1) = π

Add $\frac{\pi }{3}$ to both sides, hence

x = π + $\frac{\pi }{3}$ = $\frac{4\pi }{3}$

3 0

3 years ago