Which situation models combining a number and its additive inverse to make 0?

Mathematics

2 answers:

abruzzese [7]3 years ago

6 0

The answer is b because -8 +8 is 0

astraxan [27]3 years ago

4 0

Answer: Choice C)

The reason why is because we start of with $25 and then add on -25 to indicate his balance is going to $0 after it is taken out.

In other words, 25 + (-25) = 25 - 25 = 0

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Under his cell phone plan, Alexander pays a flat cost of $69.50 per month and $5 per gigabyte. He wants to keep his bill under $

astraxan [27]

Answer- 5g+ 69.50= 85 ; 3.1 (3)

An inequality is an equation with letters and number that sum to ONE whole.

In this case we have a flat cost, which is standalone and 5 dollars per gigabyte which is not standalone. Let G stand for each gigabyte.

This means our equation is 5g(five dollars times each gigabyte used) +69.50 that is gives. He has to keep his entire month under 85 dollars, which means our equation must equal 85. Now our equation will look like this.

Inequality- 5g+ 69.50= 85.

In order to solve how many gigabytes will be used we solve our equation backwards. We subtract 69.50 from 85,because we know that must has already been spent. This gives us 15.50. This means we will have to divided 15.50 into five dollars to see how many gigabytes are spent. 15.50 divided into five is 3.1 gigabytes.

This means Alexander will have to use 3.1 (or 3 if you have to round) gigabytes in order to spend 85 dollars or less per month.

4 0

2 years ago

Read 2 more answers

(-4x^5)^2(-2x^4)^5<br> Please help????!

ycow [4]

Answer:

$-512x^{30}$