How do I find precentges of money

Answers

Answer 1

Answer: The same you find the percentages of numbers

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Alana bought some cans of paint and 1/2 of a liter of special paint additive formulated to reduce mildew. Before painting her house, she used all of the additive to put 1/8 of a liter of additive in each can. How many cans of paint did Alana buy?

Answers

Answer:

Alana bought 4 cans of paint additive

Step-by-step explanation:

Proportions

If a proportional amount of x is to be distributed between y elements, each one of them gets x/y portions.

For example, if we have 100 coins and distribute evenly between 20 boxes, each box will receive 100/20=5 coins.

Alana bought 1/2 of a liter of the special paint additive and evenly distributed it between an unknown number of cans, let's call it C. We also know each can received 1/8 of a liter of the additive. That is the proportion of the 1/2 liter of additive.

We can establish the following condition:

$\displaystyle (1/2)/(x)=(1)/(8)$

Solving for x:

$\displaystyle (1/2)/((1)/(8))=x$

Transform the division into a product:

$\displaystyle x=(1)/(2)\cdot(8)/(1)=4$

Alana bought 4 cans of paint additive

Reggie can line a football field in 120 minutes. Rosalinda can line a football field in 80 minutes. If they work together, how many minutes does it take them to line a football field?a. 40 minutes
b. 80 minutes
c. 200 minutes
d. 240 minutes HELP?!

Answers

Answer:

If they work together, they take 48 minutes to line the football field.

Step-by-step explanation:

Given: Reggie can line a football field in 120 minutes. Rosalinda can line a football field in 80 minutes.

To find : If they work together, how many minutes does it take them to line a football field?

Solution :

If they work together,

Let the number of minutes(x) they take to line the foot ball field.

According to question,

$(1)/(x)=(1)/(120)+(1)/(80)$

$(1)/(x)=(80+120)/(120* 80)$

$(1)/(x)=(200)/(120* 80)$

Cross multiply,

$x=(120* 80)/(200)$

$x=12* 4$

$x=48$

Therefore, If they work together, they take 48 minutes to line the football field.

Answer: If they work together, they can line a football field in 48 minutes.

Step-by-step explanation: Given that Reggie can line a football field in 120 minutes and Rosalinda can line a football field in 80 minutes.

We are to find the number of minutes does it take them to line a football field if they work together.

We have

Time taken by Reggie to line a football field = 120 minutes.

So, in 1 minute, Reggie can line $(1)/(120)$ part of the field.

Time taken by Rosalinda to line a football field = 80 minutes.

So, in 1 minute, Rosalinda can line $(1)/(80)$ part of the field.

Therefore, if they work together, the portion of the football field that they can lie in 1 minute is given by

$(1)/(120)+(1)/(80)\n\n\n=(2+3)/(240)\n\n\n=(5)/(240)\n\n\n=(1)/(48)$

Thus, if they work together, they can line a football field in 48 minutes.

Why might a job that pays 1,000/hour not be enough to live on? PLEASE HELP WILL MARK BRAINLIEST!

Answers

Because of other expenses such as taxes, bills, etc

Answer:

you only work for one hour OR the money is inflated

Step-by-step explanation:

if you work for a small amount of time it is not enough money and if it is inflated the money is worth less

Just need help with question A

Answers

Answer:

Y = 0

Step-by-step explanation:

Y = -1/2 x²

To find y-intercept, substitute X = 0

Solve the equation for y

Y = 0

Y=0 is the answer hope this helps

Solve for x: 3x+4=9x+3

Answers

I got 1.7 , combine like terms 9x+3x and get 12 then 4+3 and get 7 then divide

Can you help me with this question? This is tricky question

Answers

There's nothing tricky about it.

$2\cdot2+2\cdot2+2-2\cdot2=4+4+2-4=6 \Rightarrow A$

so pemdas
first multiplication

(2*2)+(2*2)+2-(2*2)=(4)+(4)+2-(4)=8+2-4=10-4=6
the answer is A

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