3 years ago

Please help with numbers 6,7,8 will brainlist

Mathematics

1 answer:

Naily [24]3 years ago

3 0

Answer:

6. -3

7. 16

8. -39

Step-by-step explanation:

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25% of 16 is 4 so 16+4 is 20 slices of pizza

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3 years ago

SIMPLIFY (x + 5)(2x - 6) A) 2x2 - 30 B) 2x2 - 6x C) 2x2 + 7x - 6 D) 2x2 + 4x - 30

alina1380 [7]

Answer:

D) 2x²+4x-30

Step-by-step explanation:

You would multiply x and 2x; x and -6; 5 and 2x; 5 and -6

(x)(2x) = 2x²

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Now just put it back in the order that it was listed in the equation starting with (x)(2x)

This would give you 2x²-6x+10x-30

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4 0

3 years ago

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3a-4b+5c;4a +11b+2c please solve extra points

Harlamova29_29 [7]

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Step-by-step explanation:

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3 years ago

Nicole has nine dollars to spend on cards she finds friends with the same amount of money to split the cost of a set once it cos

anyanavicka [17]

Answer:

Each Friend will get $\frac{x}{3}$ cards.

Step-by-step explanation:

Let the number of cards be x.

Given:

Amount Nicole used to spend on cards = $9

Total cost of one set =$27

Also, she finds friends with the same amount of money to split the cost of a set.

So, Number of friends she finds can be calculated by dividing the Cost of 1 set with amount of money Nichole used to spend on cards.

Number of friends she finds = $\frac{27}{9} = 3$

Hence she finds 2 friends and 1 is nichole hence there are 3 persons carrying $9 to buy $27 set of card

Now, Number of cards each friend gets is equal to Total number of Cards in 1 set divided by number of people.

Number of cards each friend = $\frac{x}{3}$

Hence Each Friend will get $\frac{x}{3}$ cards.

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3 years ago