MATHEMATICS HIGH SCHOOL

Julia and Rasheed are mixing yellow paint and blue paint to make green paint. The mixture needs to be 60% blue paint and 40% yellow paint. If they need to make 3 gallons of the green paint, how much yellow paint should they use?

Answers

Answer 1

Answer:

Answer:

They should use 1.2 gallons of yellow paint.

Step-by-step explanation:

Given:

Julia and Rasheed are mixing yellow paint and blue paint to make green paint.

The mixture needs to be 60% blue paint and 40% yellow paint.

They need to make 3 gallons of the green paint.

Now, to find the quantity of yellow paint they should use.

As,

60% + 40% = 100%

So, we get the ratio of blue paint to yellow paint:

$60:40$

= $(60)/(40)$

= $(3)/(2)$

= $3:2.$

Thus, the ratio of blue paint : yellow paint is 3:2.

They need to make total 3 gallons of green paint.

Now, to get the quantity of yellow paint:

$(2)/(5)\ of\ 3\ gallons$

$=(2)/(5) * 3$

$=(6)/(5)$

$=1.2\ gallons.$

Therefore, they should use 1.2 gallons of yellow paint.

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Evaluate: xy - x (x - y^0) if x = 2 and y = -1/2

Answers

Hi

2(-1/2) - 2(2+(-1/2)^0)
= -2/2 - 2(2+(-1/2)^0)
= -1 - 2(2+(-1/2)^0)
= -1 -2 (2+1)
= -1 -2(3)
= -1 -6
= -7

I hope that's help :)

If you have any further questions please let me know :)

$2(- (1)/(2) ) - 2(2+(- (1)/(2))^0)$

$- (2)/(2) - 2(2+(- (1)/(2) )^0)$

$-1 - 2(2+(- (1)/(2) )^0)$

$-1 -2 (2+1)$

$-1 -2*(3)$ -1 -2(3)

$-1 -6$

$-7$

A researcher who is studying voting habits chose 650 registered voters at random, shortly after the 2016 presidential election. Of these voters, 74% said they had voted in the election. However, election records show that only 58% of registered voters voted in the election. Which of the following statements is true? Seventy-four percent is a sample and 58% is a population. Seventy-four percent and 58% are both statistics. Seventy-four percent is a statistic and 58% is a parameter. Seventy-four percent is a parameter and 58% is a statistic. Seventy-four percent and 58% are both parameters.

Answers

Step-by-step explanation:

A statistic is a percentage of a sample.

A parameter is a percentage of a population.

So 74% is a statistic and 58% is a parameter.

Hellppp meeeeee......

Answers

Angle 4 and 7= Interior angles

Angle 12 and 16= Corresponding angles

Angle 1 and 14= Alternate exterior angles

Angle 5 and 10=Alternate angles

angle 6 and 7 are alternate angles I think.

How many whole numbers are between 0 and n+7? (n is a whole number)

Answers

Answer:

There are n + 7 whole numbers

Step-by-step explanation:

Here, we want to calculate the number of whole numbers between 0 and n + 7

Since n + 7 is a while number, what we shall do is to simply subtract 0 from it

Thus we have; n + 7 - 0 = n + 7

So there are n + 7 whole numbers between n+ 7 and 0

Answer:

n+7

Step-by-step explanation:

n+7-0=n+7?

Find 1st 2nd 3rd 4th and 10th nTH term. rule is 4n-5

Answers

Answer:

When n is 1

4n-5

=4*1-5

=4-5

= -1

When n is 2

4n-5

=4*2-5

=8-5

When n is 3

4n-5

=4*3-5

=12-5

When n is 4

4n-5

=4*4-5

=16-5

=11

When n is 10

4n-5

=4*10-5

=40-5

=35

What is the slope of (2,3) , (6,7)

Answers

Answer:

If you're given two points (x1, y1) and (x2, y2), the slope is (y2 - y1)/(x2 - x1);

We have ( 7 - 3 )/(6 - 2) = 4 / 4 = 1;

Step-by-step explanation:

Answer:

4/4=1

Step-by-step explanation:

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