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2 years ago

HELP ASAP FOR BRAINLIEST!!

Mathematics

1 answer:

Dominik [7]2 years ago

5 0

- 5 +9
9 -5
They are equivalent

Distribute the negative

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Which equation, when solved, results in a different value of x than the other three?

kicyunya [14]

I would have to say -7(1/8)x-4/3=20.

The first and the second one both result in
-23 5/7

The last one results in -24 8/21

but the third one is -22 3/8.

So your answer is either the third of the last one. I assumed the third because, it is lower than all others and the first two are closer to 24 than they are to 22. It’s your choice on how to judge it.

5 0

2 years ago

ALOT OF POINTS IF YOU HELP ME PLEASE EXPLAIN

Svetllana [295]

Answer:

Helena gave the answer as (7y²z + 6yz²- 5 - 3yz² + 2) which is equivalent to (7y²z + 3yz² - 3).

Step-by-step explanation:

Misha's group was asked to write an expression equivalent to

7y²z + 3yz² - 3

When Mr. Chen checked their answers, he found only one to be correct.

And she was Helena.

Helena gave the answer as (7y²z + 6yz²- 5 - 3yz² + 2) which is equivalent to (7y²z + 3yz² - 3).

Because, (7y²z + 6yz²- 5 - 3yz² + 2)

= 7y²z + (6yz² - 3yz²) - (5 - 2)

= 7y²z + 3yz² - 3 (Answer)

4 0

3 years ago

Derek's score on a test was 90 percent. He had 72 questions right. How many problems were on the test?

romanna [79]

90% = 72 questions

\\Find 1%

1 % = 72 ÷ 90 = 0.8

\\Find 100%

100% = 0.8 x 100 = 80 questions

Answer: There were 80 questions

6 0

3 years ago

What is 1103857 times 38219847391028474? It is for my math hw.

diamong [38]

I don't know if this helps but my calculator said 4.2189246e+21

4 0

3 years ago

Read 2 more answers

In 2004, it was reported that "the relationship between body mass, M, and standard metabolic rate, B, among living organisms rem

lesya692 [45]

The answer is 8884.37 times

In many cases, B is approximately proportional to the three-quarters power of M:
 $B= M^{3/4}$

Elephant:
M1 = 4.6 mt = 4.6 * 1,000,000 g = 4,600,000 g
 $B1= 4600000^{3/4}=99327.24$

Mouse
M2 = 25 g
$B2= 25^{3/4}=11.18$

determine how many times greater the metabolic rate of an elephant is than that of a mouse:
B1/B2 = 99327.24 / 11.18 = 8884.37 times

6 0

3 years ago