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3 years ago

Add and Subtract the fractions below: 1/3 and 1/4

Mathematics

1 answer:

Alex3 years ago

6 0

Addition Answer: 1/3 + 1/4 = 4/12 + 3/12 = 7/12

Subtraction Answer: 1/3 - 1/4 = 4/12 - 3/12 = 1/12

Step-by-step explanation:

Basically, find the greatest common multiple of 3 and 4. Once you do this, then you can multiply across and solve any fraction problem!

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Javier By 48 cards at a yard sale. Of the cards 3/8 were basketball cards how many cards were baseball card

Hatshy [7]

The answer is 18, Hope you get it right!

3 0

3 years ago

Newborn males have weights with a mean of 3272.8 g and a standard deviation of 660.2 g. Newborn females have weights with a mean

Maksim231197 [3]

The correct option is: a female who weighs 1500 g

<em><u>Explanation</u></em>

<u>Formula for finding the z-score</u> is: $z= \frac{X-\mu}{\sigma}$

Newborn males have weights with a mean $(\mu)$ of 3272.8 g and a standard deviation $(\sigma)$ of 660.2 g.

So, the z-score for the newborn male who weighs 1500 g will be.......

$z(X=1500)=\frac{1500-3272.8}{660.2}=-2.685... \approx -2.69$

According to the normal distribution table, $P(z=-2.69)=0.0036 = 0.36\%$

Now, newborn females have weights with a mean $(\mu)$ of 3037.1 g and a standard deviation $(\sigma)$ of 706.3 g.

So, the z-score for the newborn female who weighs 1500 g will be.......

$z(X=1500)=\frac{1500-3037.1}{706.3}=-2.176... \approx -2.18$

According to the normal distribution table, $P(z=-2.18)=0.0146 = 1.46\%$

As we can see that the <u>probability that a newborn female has weight of 1500 g is greater than newborn male</u>, so a newborn female has the weight of 1500 g that is more extreme relative to the group from which he came.

5 0

3 years ago

Sally has a discount card that reduces the price of her grocery bill in a certain grocery store by 5%. if c represents the cost

MissTica

Y = sallys grocerys
x = how much sally paid

y - (.05) = x

3 0

3 years ago

Calvert corporation expects an ebit of $25,300 every year forever. the company currently has no debt, and its cost of equity is

Gnom [1K]

Based on the EBIT, the cost of equity, and rates attached, Calvert Corporation has the following values:

a. $124,019.61
b. - 1 $136,421.57
b - 2 $155,024.51

<h3 /><h3>What is the value of Calvert Corporation?</h3>

This can be found as:

= EBIT x (1 - tax rate) / cost of an equity

= 25,300 x (1 - 25%) / 0.153

= $124,019.61

<h3>What is the value with 40% debt?</h3>

= Value of firm + (Tax rate x Debt percentage x Value of firm)

= 124,019.61 + (25% x 40% x 124,019.61)

= $136,421.57

<h3>What is the value with 100% debt?</h3>

= 124,019.61 + (25% x 100% x 124,019.61)

= $155,024.51

Find out more on a firm's levered value at brainly.com/question/14339958.

#SPJ1

4 0

2 years ago

Two years ago, Rita was three times older than Cheryl. In 3 years, Rita will be twice older than Cheryl. How old are the girls n

Brrunno [24]

Answer:

Cheryl's age = x = 7 years

Rita's age = y = 17 years

Step-by-step explanation:

Let

Cheryl's age = x

Rita's age = y

Two years ago, Rita was three times older than Cheryl

(y - 2) = 3(x - 2)

y - 2 = 3x - 6

y = 3x - 6 + 2

= 3x - 4

y = 3x - 4

In 3 years, Rita will be twice older than Cheryl

(y + 3) = 2(x + 3)

y + 3 = 2x + 6

y = 2x + 6 - 3

= 2x + 3

y = 2x + 3

Equate both equations

3x - 4 = 2x + 3

Collect like terms

3x - 2x = 3 + 4

x = 7 years

Substitute x = 7 into

y = 2x + 3

= 2(7) + 3

= 14 + 3

= 17

y = 17 years

Cheryl's age = x = 7 years

Rita's age = y = 17 years

5 0

3 years ago