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maria [59]
3 years ago
6

How can you use 4x7 to find 8x7?

Mathematics
2 answers:
max2010maxim [7]3 years ago
6 0
4 x 7 is 28, and 8 x 7 is 56. You can use 4 x 7 to find 8 x 7 by multiplying that first and doubling that quotient.

Half of 56 is 28, therefore doubling that allows us to find the quotient of 8 x 7.
Karo-lina-s [1.5K]3 years ago
4 0
You can use it because if you multiply 4x7, the answer is 28 and if you multiply 8x7 it is 56 and 28 is half of 56. Hope that helped!
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Collin is playing a video game. He wins 25 points for each gold coin he finds. His goal is to win more than 200 points. He wants
serg [7]

Answer:

8

Step-by-step explanation:

the ratio or fraction for this problem would be 1 (gold coin) : 25 (points)

If we want to find out how many gold coins he needs to get 200 points we need to divide 200 by 25.

200/25 : 8

if we want to check our answer do this

1:25

1 x 8 is 8

25 x 8 is 200

Soo... Collin needs to find 8 coins to win 200 points.        

hope i helped

7 0
3 years ago
Read 2 more answers
Multiply the Polynomials:<br><br> (2x+3) (-x+2y-4)
GREYUIT [131]

The result of multiplying the polynomials is (2x + 3) (-x + 2y - 4) = -2x² + 4xy - 11x + 6y - 12

<h3>How to multiply the polynomials?</h3>

The polynomial expression is given as

(2x + 3) (-x + 2y - 4)

Expand the brackets in the above polynomial expression

So, we have

(2x + 3) (-x + 2y - 4) = 2x * (-x + 2y - 4) + 3 * (-x + 2y - 4)

Open the brackets in the above polynomial expression

So, we have

(2x + 3) (-x + 2y - 4) = -2x² + 4xy - 8x + -3x + 6y - 12

Evaluate the like terms in the above polynomial expression

So, we have

(2x + 3) (-x + 2y - 4) = -2x² + 4xy - 11x + 6y - 12

Hence, the solution is -2x² + 4xy - 11x + 6y - 12

Read more about polynomials at

brainly.com/question/17517586

#SPJ1

3 0
1 year ago
Evaluate the expression when x = 32 and y = 2 x/4y<br> a. 1/16<br> b. 16/21<br> c. 2<br> d. 4
ohaa [14]
32/4 (4)
32/16 = 2

it is c. 2
4 0
3 years ago
Read 2 more answers
Sheep:cows:pigs=12:3:2. There are 150 more sheep than pigs. How many cows has she got?
elena55 [62]
Information Given: She has 12 groups of sheep, 3 groups of cows and 2 groups of pigs. Question asks: There are 150 more sheep than pigs. How many cows has she got?
They figured 150 more sheep than pigs from 2 pigs X 75 sheep=150 lambs of 12 groups of sheep.
150 lambs/3 groups of cows=50 cows.
She has 50 cows from 3 groups of cows.

3 0
4 years ago
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Nutka1998 [239]

Answer:

$17.00

Step-by-step explanation:

8 0
3 years ago
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