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3 years ago

How can you solve 25% of 44 both mentally and with pencil and paper?

Mathematics

1 answer:

STALIN [3.7K]3 years ago

3 0

Answer:

Solving it mentally :-

It says 25% × 44. When we have a percent, change it to decimal and solve which would be easy to do it mentally.

25% = 0.25

0.25 × 44 = 11 *Answer is bolded.*

Solving it on paper :-

I have attached a picture of me doing it on paper.

Hope this helps, thank you :) !!

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Pool A is leaking. After 15 minutes, pool A has leaked 2/3 gallon. What is the rate that pool is leaking per hour? HELP ASAP!!!!

Sphinxa [80]

The unit rate is: 8/3 gallons per hour

Step-by-step explanation:

Given

Time = 15 minutes

As the unit rate has to be calculated per hour so, time has to be converted into hours

$15\ min = \frac{15}{60}\ hours\\= \frac{1}{4}\ hour$

Water leakage = 2/3 gallons

$Unit\ rate = \frac{\frac{2}{3}}{\frac{1}{4}}\\= \frac{2}{3} * 4\\= \frac{8}{3}$

Hence,

The unit rate is: 8/3 gallons per hour

Keywords: Fractions, unit rate

Learn more about fractions at:

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3 years ago

Probability of landing on even # on a spinner; probability of rolling an odd # on a die

KonstantinChe [14]

Answer:

Spinner: 50%

Die: 50%

Step-by-step explanation:

Well for the spinner it depends on the amount of numbers it has,

in this case we’ll use 6.

So The probability of landing on the even numbers in a 6 numbered spinner.

2, 4, 6

3/6

50%

Your average die has 6 sides so the odd numbers are,

1, 3, 5

3/6

50%

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3 years ago

Solve the system of equations using elimination/combinations-2x -y = -4 x + 2y =5

sweet-ann [11.9K]

Answer:

x = 1, y = 2

Step-by-step explanation:

In the elimination method to solve a system of linear equations, one of the two equations is added/subtracted to the other, in order to eliminate one variable from the equation.

In this problem, we have the following two equations:

$-2x-y=-4\\x+2y=5$

To solve the system, first we multiply by 2 both sides of the second equation, and we get:

$2(x+2y)=2(5)\\2x+4y=10$

So now the system is

$-2x-y=-4\\2x+4y=10$

Now we add the two equations, and we get:

$(-2x+2x)+(-y+4y)=(-4+10)\\3y=6$

So, we get

$y=\frac{6}{3}=2$

Now we can substitute this value of y into the eq.(2), and we get:

$x+2y=5\\x+2(2)=5\\x+4=5\\x=5-4=1$

3 0

3 years ago

One ball is to be selected from a box containing red, white, blue, yellow, and green balls. If the probability that the selected

ZanzabumX [31]

Answer:

30% probability that it will be yellow, or green

Step-by-step explanation:

The urn has red, white, blue, yellow, and green balls.

Each ball is chosen with the following probabilities:

1/10 = 10% probability it is red

2/5 = 40% probability it is white

1/5 = 20% probability it is blue.

p probability it is yellow or green

What is the probability that it will be yellow, or green

The sum of all probabilities is 100%. So

10 + 40 + 20 + p = 100

p = 30

30% probability that it will be yellow, or green

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4 years ago

The probability of an event is 0.26. Describe the likelihood of the event.

Digiron [165]

Answer:

Not likely

Step-by-step explanation:

0.0 -- 0.32 = Not likely

0.33 -- 0.66 = Neither likely or unlikely

0.67 -- 1.0 = Likely

Hope this helps. Have a nice day.

6 0

3 years ago

Read 2 more answers