MATHEMATICS HIGH SCHOOL

Can someone please help?

Answers

Answer 1

Answer:

Answer:

Multiply by 3, 162

Step-by-step explanation:

2 x 3 is 6.

6 x 3 is 18.

18 x 3 is 54.

54 x 3 is.... you get the deal.

54 x 3 is 162.

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Find the unit rate: 6 yards of fabric for $8.10

Answers

Answer:

$1.35 per yard

Step-by-step explanation:

$8.10/6=$1.35

Answer:

$1.35

Step-by-step explanation:

$8.10 divided by 6

Write equivalent expressions for each:
A. 2X+5X+7-3
B. 4X-2Y=10X
C. 2P+12+2P-8

Answers

A. 2X+5X+7-3
= (2X+5X)+ (7-3) (combine like terms)
= 7X+ 4

B. 4X-2Y+10X
= (4X+ 10X) -2Y (combine like terms)
= 14X -2Y

C. 2P+12+2P-8
= (2P+ 2P)+ (12-8) (combine like terms)
= 4P+ 4

Final answer:
A. 7X+4
B. 14X -2Y
C. 4P+ 4

Hope this helps~

A.
2x + 5x + 7 - 3
(2+5)x + (7-3)
7x + 4

B.
4x - 2y + 10x
4x + 10x - 2y
(4+10)x - 2y
14x - 2y

C.
2p + 12 + 2p - 8
2p + 2p + 12 - 8
(2+2)p + (12-8)
4p + 4

A pair of jeans are originally priced at $30.00 jeans go on sale for 20% off, what is the difference between the sale price and the original cost?

Answers

Answer:

$ 6

Step-by-step explanation:

Discount = 20% of 30

$= (20)/(100)*30$

= 2 * 3

= $ 6

Difference between the sale price and the original cost = $ 6

Calculate 7C2.A. 21

B. 42

C. 14

D. 9

Answers

The correct answer is 21.

Solve x/ x-2 + x+2/ x >2

Answers

$(x)/(x - 2) + (x + 2)/(x) \ \textgreater \ 2$
$(x(x))/(x(x - 2)) + ((x - 2)(x + 2))/(x(x - 2)) \ \textgreater \ 2$
$(x^(2))/(x(x - 2)) + (x^(2) - 4)/(x(x - 2)) \ \textgreater \ 2$
$(x^(2) + x^(2) - 4)/(x(x - 2)) \ \textgreater \ 2$
$(2x^(2) - 4)/(x(x - 2)) \ \textgreater \ 2$
$2x(x - 2) \ \textgreater \ 2x^(2) - 4$
$2x^(2) - 4x \ \textgreater \ 2x^(2) - 4$
$-4x \ \textgreater \ 4$
$x \ \textgreater \ -1$

How can I work out -3 X 6?

Answers

One way to do it would be to forget about labels. So basically, 3*6=? Then just add the negative sign. (This doesn't work for all equations! Only ones like these) :D hope this helped :)

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