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3 years ago

I really need help I don't know what to do I pay attention but don't understand

Mathematics

1 answer:

mrs_skeptik [129]3 years ago

6 0

It means like what number equals that number.Use multiplication to figure these out.

Example : 9,15. Factors for 9-9,1,3 .Factors for 15-1,15,3,5

Hope this helps !

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3x - y = 6<br> What is the answer

Leno4ka [110]

Step-by-step explanation:

it will be x in terms of y or vice versa

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3 years ago

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Complete these ordered pairs for this equation. (0, ), (-2, ), (4, ) y=2x

quester [9]

Answer:

Part 1) The ordered pair is (0,0)

Part 2) The ordered pair is (-2,-4)

Part 3) The ordered pair is (4,8)

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

In this problem we have a direct variation

$y=2x$

Complete the ordered pairs

Part 1) we have (0,?)

For x=0

Substitute in the equation and solve for y

$y=2(0)=0$

therefore

The ordered pair is (0,0)

Part 2) we have (-2,?)

For x=-2

Substitute in the equation and solve for y

$y=2(-2)=-4$

therefore

The ordered pair is (-2,-4)

Part 3) we have (4,?)

For x=4

Substitute in the equation and solve for y

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4 years ago

Wilson paints 40% of a bookcase in 20 minutes how much more time will it take him to finish the bookcase?

Nadya [2.5K]

Answer:

30 minutes

Step-by-step explanation:

First you can break down the percent and the time into a fraction

You can divide it by 2

so 2%/1 (2% in 1 minute)

Then you find the amount of time it would take to paint the whole bookcase

2 * 100 = 50

So time to paint the whole bookcase would be 50

50 - 20 = 30

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3 years ago

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Frannie is two years older than 3 times her daughter's age. If Frannie is 47, how old ids her daughter?

SVEN [57.7K]

The answer is 15. Her daughter is 15 years old.

In order to find this we need to work backwards. First let’s subtract 2 from Frannie’s current age.
That gives us 45. We know that her daughter is 3 times younger so now all we need to do is divide by 3.
That gives us fifteen.

Hope this helped !!
<3

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4 years ago

A bag contains 21 red marbles, 4 white marbles, and 3 gray marbles. Do you randomly pick out a marble recorded color and put it

Svetach [21]

Answer:

Step-by-step explanation:

you add 21, 4, and 3 to find the total

then you find how many are white or gray

7/28= 1/3

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3 years ago