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3 years ago

Which expression is equivalent to 20+8y_9y_21

Mathematics

1 answer:

viktelen [127]3 years ago

3 0

Answer: 4(5+2y)-3(3y+7)

Step-by-step explanation:

Use the distributive property for this ^^^

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Determine the quotient

nexus9112 [7]

Answer:

option 2: $\large \frac{10}{12}$

Step-by-step explanation:

when dividing fractions, you can actually multiply them together by the reciprocal of the second one. (reciprocal is just flipping the fraction)

so, $\frac{2}{3}$ ÷ $\frac{4}{5}$

becomes $\frac{2}{3} * \frac{5}{4}$

to multiply fractions together, just multiply the top and bottom.

2 * 5 = 10

3 * 4 = 12

so the answer would be $\frac{10}{12}$

8 0

3 years ago

What is the answer to (x-4)-(-6+x) ?

Likurg_2 [28]

X - 4 +6 -x
x - x = -2

0 = -2

No solution

5 0

3 years ago

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Your friend tells you that if you let her keep 2020 of your Pokemon cards for three months, she will give you 22 cards extra whe

Dmitrij [34]

Answer: 40 %

Step-by-step explanation:

Let the amount of one card = x

Hence, the value of 20 cards ( Principal amount ) = 20x

And, the value of 22 cards ( Total amount after 3 month ) = 22x

⇒ Total interest in 3 month = 22x - 20x =2x

Let the annual interest rate = r %

$\frac{20x\times r\times 3/12}{100}=2 x$ ( By the formula of simple interest rate )

$\implies \frac{10\times r\times 1/4}{100}=1$

$\implies \frac{10r}{400}=1$

$\implies 10r=400$

$\implies r=40\%$

Hence, the annual rate of interest = 40%

8 0

3 years ago

Question 1

MAVERICK [17]

Question 1:
x - Tim`s age, y - Coach Johnson`s age:
x + 10 = y
2 * ( x - 3 ) = y - 3
-----------------------
2 x - 6 = x + 10 - 3
2 x - x = 7 + 6
x = 13
Tim is 13 years old.
Question 2:
x - 62,500 = 0.25 * 125,000
x - 62,500 = 31,250
x = 31,250 + 62,500
x = 93,750
Maya received 93,750 votes.

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3 years ago

Exercise 1: Which of the following is not an equation

Pavel [41]

It is number 4.........

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3 years ago

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Which expression is equivalent to 20+8y_9y_21​

Which expression is equivalent to 20+8y_9y_21