3 years ago

Hi! Does anybody know how to do this?

Mathematics

1 answer:

nasty-shy [4]3 years ago

6 0

Answer:

4x^2 -6x^2 - 6x +3x+3 -4

Step-by-step explanation:

3 - 6x +4x^2 +3x -6x^2 -4

To put like terms next to each other, put the highest powers first down to the lowest powers

4x^2 -6x^2 - 6x +3x+3 -4

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Please help me solve these 3 problems. Solve for x state the properties used and check your answer. I’ll mark as brainliest.

Brut [27]

Answer:

a) 5x=8 use a calculator and use distributive property

b) 22=3x+5 -18

22=3x-13

9=3x

x=3

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-48= -3x-21

-27= -3x

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Step-by-step explanation:

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3 years ago

Y varies directly with x. If y=25 when x=5, find y when x =-4 y =

alina1380 [7]

Answer:

y = -20

Step-by-step explanation:

Given that y varies directly with x it means changing x will also cause change in y

Mathematically it can be written as:

y∝x

Removing the proportionality symbol

y = kx

Given y=25 when x=5 Putting the values

$25 = k(5)\\k = \frac{25}{5}\\k = 5$

Now

$y = 5x$

We have to find the value of y when x = -4

Putting x=-4

$y = 5(-4)\\y = -20$

Hence,,

y = -20

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2 years ago

A camera regularly priced at 295 was placed on sale at 236. What percent of the regular price was the sale price?

skad [1K]

Answer:

80%

Step-by-step explanation:

regular price was given as $295.

The sale of the camera was $236.

Needed Percentage of the regular price =( 236/295)

= 0.8

=(0.8 × 100%)

= 80%

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3 years ago

while exercising victor walked 1/8 of a mile in 1/9 of an hour. at this rate, how far will he travelled after an hour?

ExtremeBDS [4]

1 and 1/8 of a mile is how far he’ll walk

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steposvetlana [31]

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Step-by-step explanation:

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3 years ago

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