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4 years ago

Marcus had 40$ until he earned $5.Find the percent of increase to the nearest whole percent

Mathematics

2 answers:

marissa [1.9K]4 years ago

8 0

It’s 13% I know bc I asked my mom

Rashid [163]4 years ago

7 0

Answer:

13%

Step-by-step explanation:

1% = $0.40

Therefore $5 = $5/$0.40=12.5% rounded up it is 13%

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The father say to his son, that’s his father in the photograph.

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4 years ago

20 points!!

ANEK [815]

See below for the proof of the equation $\frac{ax + by}{x + y} - \frac{ax - by}{x - y}= 2(a - b)$

<h3>How to prove the equation?</h3>

The equation is given as:

$\frac{ax + by}{x + y} - \frac{ax - by}{x - y}= 2(a - b)$

Take the LCM

$\frac{(ax + by)(x - y) -(ax - by)(x + y)}{(x + y)(x - y)}= 2(a - b)$

Expand

$\frac{ax^2 - axy + bxy - by^2 -ax^2 - axy + bxy + by^2}{(x + y)(x - y)}= 2(a - b)$

Evaluate the like terms

$\frac{-2axy + 2bxy }{(x + y)(x - y)}= 2(a - b)$

Rewrite as:

$\frac{-2axy + 2bxy }{x^2 - y^2}= 2(a - b)$

Factorize the numerator

$\frac{2(a - b)(x^2 - y^2)}{x^2 - y^2}= 2(a - b)$

Divide

2(a - b)= 2(a - b)

Both sides are equal

Hence, the equation $\frac{ax + by}{x + y} - \frac{ax - by}{x - y}= 2(a - b)$ has been proved

Read more about equations at:

brainly.com/question/2972832

#SPJ1

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2 years ago

Sara brought a piece of ribbion. The length of the ribbion is given in tenths. Write the length as two other equivalent fraction

hram777 [196]

Divide both 6 and 10 by 2 to get 3/5

Multiply both 6 and 10 by 2 to get 12/20

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3 years ago

Read 2 more answers

(PLEASE HELP!!!Which number line can be used to find the distance between (-1,2) and (-5,2)?

KIM [24]

Answer:

I think it is the first number line

Step-by-step explanation:

I think it is this one because it is the only one that shows the placement of -1 and -5. I am sorry if the answer is wrong.

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3 years ago

Someone please help!!! VERY URGENTTT

katovenus [111]

Answer:

1/9

Step-by-step explanation:

For these questions, you have to first find the probability of each event individually occuring then multiply these two probabilities together. So, lets first find the probability of Event 1 occuring (rolling a number higher than 1). On a dice, we know that there are 6 numbers (1, 2, 3, 4, 5, 6) of which the numbers 5 and 6 are higher than 4. Therefore, the proability of Event 1 occuring is 2/6 = 1/3. Now, we find the probability of event 2 occuring.

We know that there are 3 options on the spinner that the arrow can land on. It is also evident that they all have the same chance of landing on it. Therefore, the possibility is 1/3.

Now that we have both of our probabilities, we multiply the answer together.

Therefore, our answer will be:

1/3 x 1/3, which gives 1/9.

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3 years ago