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2 years ago

15

Plz help me just don't get it

2 answers:

nata0808 [166]2 years ago

7 0

So basically to find out the cell phone bill is you divide 63$ by 7 the multiply the answer of 63 divided by 7. You then find out a third which is 21 then add 18+21 then subtract from 63

fredd [130]2 years ago

4 0

To make this problem easier you could make the denominators equal to combine the 2 bills to see how of his paycheck is being used already. to 2/7 = 6/21 and 1/3=7/21 so with 6/21 and 7/21 you can combine them and you have 13/21 is used on bills so 21/21(which represents the whole paycheck) - 13/21 =8/21 so 8/21 is what is left his paycheck to spend write this as a decimal by dividing and you will have the percentage that he has left so 8/21 = .38 so he can spend approximately 38% of his check on games and 63dollars * .38 is about 24dollars 63*.38 =24(approximately) you divide 8/21 and get an exact answer.

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Dan pays £220 per week in rent.

____ [38]

Answer:

225.5

Step-by-step explanation:

220 + (2.5% × 220) =

220 + 2.5% × 220 =

(1 + 2.5%) × 220 =

(100% + 2.5%) × 220 =

102.5% × 220 =

102.5 ÷ 100 × 220 =

102.5 × 220 ÷ 100 =

22,550 ÷ 100 =

225.5

8 0

3 years ago

Read 2 more answers

HELP PLEASEEE, I REALLY DO NOT UNDERSTAND THESE QUESTIONS. THANK YOU HELP IS VERY MUCH APPRECIATED!!!

MAVERICK [17]

Answer:

a) $40920

b) $38500

Step-by-step explanation:

Given:

5 employees,

Mean = $40300

Median = $38500

Min = $32000

If he lowest paid employee gets a $3100 raise, then his salary becomes

$32000+$3100=$35100

a) If the mean was $40300, then the sum of 5 salaries is

$\$40300\cdot 5=\$201500$

After raising the lowest salary the sum becomes

$\$201500+\$3100=\$204600$

and new mean is

$\dfrac{\$204600}{5}=\$40920$

b) The lowest salary becomes $35100. It is still smaller than the median, so the new median is the same as the old one.

New median = $38500

5 0

2 years ago

2x + y = -4<br> x + 4y = 12<br> Solve both for y

geniusboy [140]

Answer: y=−6x

Step-by-step explanation: Add -2x to both sides.

7 0

2 years ago

While playing a video game Ruth earned 5 base points,b, 9 bonus points,x, and 4 advanced points, a. Write an algebraic expressio

Musya8 [376]

b + x + a

Hope it helps you.

7 0

3 years ago

Find the value of the variable y, where the sum of the fractions 6/(y+1) and y/(y-2) is equal to their product.

Blizzard [7]

Answer:

The answer is

$y = 3$

$y = - 4$

Step-by-step explanation:

We must find a solution where

$\frac{6}{y + 1} + \frac{y}{y - 2} = \frac{6}{y + 1} \times \frac{y}{y - 2}$

Consider the Left Side:

First, to add fraction multiply each fraction on the left by it corresponding denomiator and we should get

$\frac{6}{y + 1} \times \frac{y - 2}{y - 2} + \frac{y}{y - 2} \times \frac{y + 1}{y + 1}$

Which equals

$\frac{6y - 12}{(y -2) (y + 1)} + \frac{ {y}^{2} + y }{(y - 2)(y + 1)}$

Add the fractions

$\frac{y {}^{2} + 7y - 12 }{(y - 2)(y + 1)} = \frac{6}{y + 1} \times \frac{y}{y - 2}$

Simplify the right side by multiplying the fraction

$\frac{6y}{(y + 1)(y + 2)}$

Set both fractions equal to each other

$\frac{6y}{(y + 1)(y - 2)} = \frac{ {y}^{2} + 7y - 12}{(y + 1)(y - 2)}$

Since the denomiator are equal, we must set the numerator equal to each other

$6y = {y}^{2} + 7y - 12$

$= {y}^{2} + y - 12$

$(y + 4)(y - 3)$

$y = - 4$

$y = 3$

6 0

2 years ago

Read 2 more answers