Mixing 4 ml of red paint and 15 ml yellow paint makes orange paint. How much red would be needed if you use 100 ml of yellow paint? Please show work

Answers

Answer 1

Answer: $(4ml)/(15ml)=(xml)/(100ml)\n\ncross\ multiply\n\n15x=4*100\n\n15x=400\ \ \ \ |divide\ both\ sides\ by\ 15\n\nx=(400)/(15)\ \ \ \ \ |divide\ a\ numerator\ and\ a\ denominator\ by\ 5\n\nx=(80)/(3)\n\nx=26(2)/(3)\ (ml)\n\nAnswer:26(2)/(3)\ ml\ of\ red\ paint.$

Related Questions

if five potatoes together have a mass of one kilogram and eight pears together have a mass of 1200 grams,which has the greater mass a potato or a pear?explain
How can I write 2,351 and standard form
Find 15.75 divided by 0.25 using a giant one
The population od a small country is 5,740,000. Express this number using scientific notation. Say steps to.
A recipe for guacamole uses 12% lime juice, if a batch contains 0.75 cup of lime juice, how large is the batch of guacamole?

4 hundredths equal how many thousandths

Answers

4 hundredths equal 400 thousandths because hundredths to thousandths is increased by 100. Just increase 4 by 100 4*100=400

if 4 bottles of juice were shared equally among 14 students, what fraction of the juice did each student drink

Answers

3 1/2. 14 ÷ 4 = 3.5. Now you know how much was divided between them in decimal form. To convert 3.5 to a fraction, put down 3 as the whole number and .5 as 5/10 because this decimal is read as "three and five hundredths." 3 5/10 is not in lowest terms, so you would divide both the numerator and the denominator by 5. 5 ÷ 5 = 1; 10 ÷ 5 = 2: 3 1/2 is your answer. Hope this helped!!! :)

Rimshot bought two equal sized pizzas. He cut the first one into 8 equal pieces and ate three of them. Then he cut the other pizza into 6 equal pieces and ate one of them. What fraction of a whole pizza did he eat altogether?

Answers

i think its 4/8 because a whole pizza is 8 slices so he ate 3 in the first one and 1 in the second one

Please help with the question 2 to 18

Answers

Since these questions all require similar methods of solving, I will only completely work out the first question of each type.

2. To find $(7)/(10)$ as a decimal, all we need to do is complete the fraction by dividing the numerator by the denominator.

$(7)/(10)$ = 7 / 10 = 0.7

$(7)/(10)$ as a decimal is 0.7.

3. To write a fraction as a percentage, we must first convert it into a decimal, the way we did in problem 2.

$(13)/(20) =0.65$

Then to change that number into a percentage, we can either multiply it by 100, or (my personal shortcut) just shift the decimal point over two places to the right.

0.65 = 65%

which is the answer to question 3.
$(13)/(20)$ written as a percent is 65%.

4. Writing a percentage as a fraction is a bit easier than writing a fraction as a percentage. All you need to do is place the percentage in the numerator's place of a fraction with 100 as the denominator and simplify.

2%5 = $(25)/(100)$

Since 25 goes into 100 four times, we can simplify this fraction.

$(25)/(100) = (1)/(4)$

which is our answer.

25% written as a fraction is $(1)/(4)$ .

5. This is the same as problem 3, so I won't show my work for the sake of time.

$(2)/(5)$ as a percentage is 40%.

6. This is the same as problem 1, so I will not show steps again.

$(3)/(20)$ as a decimal is 0.15.

7. Done similar problems in past. No work shown.

$(21)/(50)$ as a percent is 42%.

8. Same as last problem.

$(1)/(25)$ as a percent is 4%.

9. Same as number 4.

6% as a fraction is $(3)/(50)$ .

10. Similar in past.

$(3)/(5)$ as a percentage is 60%.

11. Same as 6.

$(12)/(25)$ as a decimal is 0.48.

12. Done a lot of these so far.

$(3)/(10)$ as a percentage is 30%.

13. Just did one like this.

$(3)/(4)$ as a percentage is 75%.

14. Same as 4 and 9.

65% as a fraction is $(13)/(20)$ .

15. Plenty of these done in past.

$(1)/(5)$ as a percentage is 20%.

16. Last problem, and it's just like the one just before this.

$(9)/(10)$ written as a percent is 90%.

So there are the results.
Hope that helped! =)

2. 7/10 as a decimal.

The easiest way to find the decimal form of a fraction is to make it out of 10 or 100. Since this one's already out of 10, we read it as "seven tenths."

Seven tenths as a decimal is 0.7, because the 7 is in the tenths spot.

7/10 as a decimal is 0.7

3. 13/20 as a percent

Percent means "one part in every hundered", so let's convert this fraction into something out of 100.
To do that, we need to multiply it by whatever number will turn the denominator into 100.

20 x 5 = 100
13 x 5 = 65

13/20 is equal to 65/100

Now, we take the numerator, and write it as a percent.

65/100 is 65%

Therefore 13/20 as a percent is 65%

4. 25% as a fraction.

We can do this one the opposite of #3.

25% is 25/100

And then we can just simplify. 5 goes into both 25 and 100, so let's use that first.

25 ÷ 5 = 5
100 ÷ 5 = 20

25/100 = 5/20

But we can simplify it further, if we want, because 5 goes into 5 and 20

5 ÷ 5 = 1
20 ÷ 5 = 4

25/100 = 5/20 = 1/4

So 25% as a fraction can be written as 25/100, or 5/20, or 1/4.

Now, #5-16 can all be done the same way as #2, 3, or 4, so I'll write out the math, but not the lengthy explanation for the rest.

5. 2/5 as a percent
5 x 2 = 10
2 x 2 = 4
4/10
10 x 10 = 100
4 x 10 = 40
40/100

40%

6. 9/20 as a decimal

20 x 5 = 100
9 x 5 = 45
45/100

0.45

7. 21/50 as a percent.
50 x 2 = 100
21 x 2 = 42
42/100

42%

8. 1/25 as a percent
25 x 4 = 100
1 x 4 = 4
4/100

4%

9. 6% as a fraction
6/100
6 ÷ 2 = 3
100 ÷ 2 = 50
3/50

6/100 or 3/50

10. 3/5 as a percent
5 x 20 = 100
3 x 20 = 60
60/100

60%

11. 12/25 as a decimal
25 x 4 = 100
12 x 4 = 48
48/100

0.48

12. 3/10 as a percent
10 x 10 = 100
3 x 10 = 30

30%

13. 3/4 as a percent
4 x 25 = 100
3 x 25 = 75
75/100

75%

14. 65% as a fraction
65/100
65 ÷ 5 = 13
100 ÷ 5 = 20
13/20

65/100 or 13/20

15. 1/5 as a percent
5 x 20 = 100
1 x 20 = 20
20/100

20%

16. 9/10 as a percent
10 x 10 = 100
9 x 10 = 90
90/100

90%

#17 and 18 require a bit more math, because they're lovely word problems.

17. Ashlee has finished 7/25 of her homework. What percent of the homework does Ashlee still need to finish?

First, let's turn 7/25 into a percentage.

25 x 4 = 100
7 x 4 = 28
28/100
28%

Now, we subtract 28% from 100% to find out how much she's got left

100 - 28 = 72

Ashlee has 72% of her homework left to finish.

18. Luz catches 83% of the balls in the outfield. What fraction of the balls does he not catch?

Let's turn 83% into a simple fraction, and work from there.

83%
83/100

We can simplify the answer later, but for now, to find the fraction he doesn't catch, we subtract the fraction from the whole.

100/100 - 83/100 = 17/100

17 is a prime number, so we can't reduce it down at all.

Luz doesn't catch 17/100 of the balls.

if the area of a parallelogram is 86cm and the height is 12cm write an equation that relates the height,base and area of the parallelogram

Answers

Answer:

The relation to find base is, $base=(area\ of\ the \ parallelogram)/(height)=(86)/(12)=7.16\ cm$

Step-by-step explanation:

Given

Area of the parallelogram $=86\ cm^2$

Height of the parallelogram $=12\ cm$

We know that the area of the parallelogram $=base* height$

To find base we have to divide the height on both sides of the equation.

$base=(area\ of\ the \ parallelogram)/(height)$

Plugging the values.

$base=(86)/(12) =7.1\ cm$

So the base in terms of area of the parallelogram and its height is $b=(area)/(height) =(86)/(12)=7.16\ cm$

F(x)=9x^3+2x^2-5x+4 and g(x)=5x^3-7x+4. what is f(x)-g(x)?Show all of your steps and write your finial answer in factored form.

Answers

Answer: 4x^3+2x^2-12x+8

I am sorry it takes to long to type in the equation of this problem step by step. I only can just give you an answer.

Other Questions

a cereal box is 19 cm long 6 cm wide and 28 cm cm high. an artist is trying to create a design for the box. what is the surface area the artist needs to cover?

The population of a town was 89,443 in 1990 and then has increased at a rate of 0.6% per year since then. Which function represents the town's population t years after 1990?

This is all one question show work for everything please I don’t get this !! And for the last one too

Another 3rd grade question:The rec center soccer field measures 35 yards by 65 yards. Chris dribbles the ball around the perimeter of the field 4 times what is the the total amount of yards that Chris dribbles the ball?