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3 years ago

sara just turned 18 years old. she spent 4/9 of her life living in rochester new york. how many years did sara live in rochester

Mathematics

1 answer:

Lerok [7]3 years ago

7 0

She lived there 8 years
1/9 of 18 is 2.

So 4/9 of 18 = 4*2 = 8

So Sara lived in Rochester for 8 years.

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A store can buy 8 cartons of milk for $24 or 7 cartons of milk for $28.

USPshnik [31]

Answer:

A. $1 less

Step-by-step explanation:

24 divided by 8 (unit rate) = $3

28 divided by 7 = $4

4-3=1

3 0

2 years ago

Amanda's book bag is 0.10. Some of Amanda's pens are removed and replaced with pink pens. Her book bag still contains a total of

Marta_Voda [28]

Answer:

The number of pink pens can be 19 .

Step-by-step explanation:

Total Number of pens = 20

Let x be the number of pink pens

We are supposed to find If the probability of choosing a pink pen is close to 1, how many pink pens would you expect to see in Amanda's bag

Probability of choosing a pink pen = $\frac{\text{Number of pink pens}}{\text{Total Number of pens}}$

Probability of choosing a pink pen = $\frac{x}{20}$

ATQ

$\frac{x}{20}$ ≈1

x≈20

So, the number of pink pens can be 19 .

6 0

3 years ago

Quick anyone know the answer to this problem?

sweet-ann [11.9K]

Answer:

Step-by-step explanation:

Factor the numerators/ denominators

10 - 5 = 5(2a - 1) ← common factor of 5

4a² - 1 = (2a - 1)(2a + 1) ← difference of squares

[ Change ÷ to × and turn second fraction upside down ]

= $\frac{2a+1}{5(2a-1)}$ × $\frac{(2a-1)(2a+1)}{10a}$

[ cancel the factor (2a - 1) on the numerator/denominator ] leaving

= $\frac{(2a+1)^2}{5(10a)}$ = $\frac{(2a+1)^2}{50a}$

6 0

4 years ago

Read 2 more answers

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a_sh-v [17]

Answer:

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Step-by-step explanation:

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3 years ago

When y = 75 x = 1/2 what is the value of y when x is 2 1/4

Allisa [31]

337.5. 1/4x= 37.5. Multiply that by 9, get 337.75

6 0

3 years ago