3 years ago

Is -7/8 equivalent to 8 / -7

Mathematics

2 answers:

xenn [34]3 years ago

6 0

Answer: no

Step-by-step explanation: -7/8= -875 8/-7=1.1428571428571428

alexandr402 [8]3 years ago

3 0

Answer:

Step-by-step explanation:

Because -7/8= -0.875, while 8/-7= -1.142

You might be interested in

In a history class, the girl to boy ratio is 5 to 3. If there are 80 students total, how many boys are there?

Brilliant_brown [7]

80x3/8=10 common factor. 10x5. And 10x3

50/30

30 boys

50 girls

8 0

2 years ago

Solve for m<br> 3m-4=5m+10

Sonbull [250]

Answer:

-7

Step-by-step explanation:

3m-4=5m+10

-2m-4=10

-2m=14

m=-7

7 0

2 years ago

Read 2 more answers

Write an inequality for the situation.<br> all real numbers y that are less than 4 or greater than 9

Arturiano [62]

Idgddavadhafhafh harharh that

5 0

2 years ago

Terry burnt a total of 654 calories working out. If Terry does the same workout routine a total of 7 times over the course of th

Flauer [41]

Answer: 4,578

Step-by-step explanation:

654 calories x 7

7 0

2 years ago

A survey among freshman at a certain university revealed that the number of hours spent studying before final exams was normally

patriot [66]

Answer: 0.0775

Step-by-step explanation:

Given : Mean : $\mu = 25$

Standard deviation : $\sigma =15$

Sample size : $n=36$

Since its normal distribution , then the formula to calculate the z-score is given by :-

$z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

For x= 28.2 hours

$z=\dfrac{28.2-25}{\dfrac{15}{\sqrt{36}}}=1.28$

For x= 30 hours

$z=\dfrac{30-25}{\dfrac{15}{\sqrt{36}}}=2$

The P- value = $P(1.28$

$=P(z$

Hence, the probabiliy that the average time spent stydying for the sampe was between 28.2 and 30 hours = 0.0775

6 0

3 years ago