4 years ago

HELP ME PLEASE!!! ANWSER QUICKLY!!!

Mathematics

1 answer:

vovikov84 [41]4 years ago

5 0

The answer will be C

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One number is 5 more than twice another and their sum is 23.

icang [17]

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Help me with number 15, will give brainliest:)

gladu [14]

i believe it’s D because where you have 20 marked it’s 20 more from where you are which would be around 40 which is why i’m saying D

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3 years ago

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A machine uses gasoline at a rate of 1/5 gallon an hour. So far 9/10 of a gallon has been used. How many hours has the machine o

uysha [10]

The machine was operated for 4.5 hours

A machine uses gasoline at a rate of 1/5 gallon per hour

The number of hours it will take the machine to use 9/10 gallon can be calculated as follows

1/5 = 1

9/10= x

cross multiply

1/5x= 9/10

0.2x= 0.9

x= 0.9/0.2

x= 4.5

Hence the machine was operated for 4.5 hours

#SPJ1

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1 year ago

Which polynomial correctly combines the like term and express the given polynomial in standard form

ankoles [38]

Answer:

$8mn^5 - 2m^6 + 5m^2n^4 - m^3n^3 + n^6 - 4m^6 + 9m^2n^4 - mn^5 - 4m^3n^3 = -6m^6 - mn^5 - 5m^3n^3 + 14m^2n^4 + 8mn^5 + n^6$

Step-by-step explanation:

Given

$8mn^5 - 2m^6 + 5m^2n^4 - m^3n^3 + n^6 - 4m^6 + 9m^2n^4 - mn^5 - 4m^3n^3$

Required

Correctly combine the like terms

We have:

$8mn^5 - 2m^6 + 5m^2n^4 - m^3n^3 + n^6 - 4m^6 + 9m^2n^4 - mn^5 - 4m^3n^3$

Collect like terms (in decreasing degrees of m)

$- 2m^6 - 4m^6 - mn^5- m^3n^3 - 4m^3n^3+ 5m^2n^4 + 9m^2n^4 + 8mn^5 + n^6$

$-6m^6 - mn^5 - 5m^3n^3 + 14m^2n^4 + 8mn^5 + n^6$

So:

$8mn^5 - 2m^6 + 5m^2n^4 - m^3n^3 + n^6 - 4m^6 + 9m^2n^4 - mn^5 - 4m^3n^3 = -6m^6 - mn^5 - 5m^3n^3 + 14m^2n^4 + 8mn^5 + n^6$

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3 years ago

Which inequality is a true statement?

Shtirlitz [24]

None, the only correct answer is...

-2 > -12

... in negative integers, the smaller the magnitude the bigger it is.

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4 years ago