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2 years ago

B(a + b) - a(a - b)

Mathematics

1 answer:

mixas84 [53]2 years ago

6 0

Answer:

Go to the website below this messages for the answer with step-bij-step explanation

Step-by-step explanation:

https://socratic.org/questions/how-do-you-simplify-b-a-b-a-a-b

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The expression 0.09x+(x-30) models the final price of a bicycle is its an instant rebate in a state that charges a sales tax. Th

svlad2 [7]

Answer:

A)0.09x

Step-by-step explanation:

The original price of the bicycle is x.

The discounted price of the bicycle is x - 30. It is a $30 discount.

The tax goes on the original price. 0.09x is the 9% tax applied to the original price x.

Answer: 0.09x

6 0

2 years ago

Read 2 more answers

Lynn has a box of crayons.

Scrat [10]

Answer:

There are 72 crayons in the box

Step-by-step explanation:

Fractions

To solve this problem we'll manage numbers as fractions to keep the precision up to the end of it.

Lynn has a box of crayons. It's given 4/9 of the crayons are blue. The remaining crayons are:

$1-\frac{4}{9}=\frac{5}{9}$

From that portion, 65% are red, or equivalently, 35% are yellow.

We write 35% as a fraction:

$\displaystyle 35\%=\frac{35}{100}=\frac{7}{20}$

Thus, the portion of yellow crayons is:

$\displaystyle \frac{7}{20}\cdot \frac{5}{9}=\frac{7}{36}$

This fraction of x crayons is equal to 14, thus:

$\displaystyle x=\frac{14}{\frac{7}{36}}=14\cdot\frac{36}{7}$

x = 72

There are 72 crayons in the box

7 0

2 years ago

the expression 5n can be. used to find the total cost in dollars of bowling where n is the number of games bowled and 2 represen

sergiy2304 [10]

17 dollars for Vincent to bowl 3 gamees

4 0

2 years ago

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Factor each trinomial completely. 4x^2 - 25b^2 and x^2 - 81

GenaCL600 [577]

Step-by-step explanation:

4x2 - 25b2

We can solve it by the squares so

(2x - 5b) (2x + 5b)

2) x2 - 81

The same case is here so

(x - 9) (x + 9)

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2 years ago

Picture attachment is below

Stolb23 [73]

Answer:

Step-by-step explanation:

A rational number will either end or repeat forever like the first three, but the fourth one, pi, will go on forever and never repeat, making it irrational.

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2 years ago