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3 years ago

14

One half of your CDs are scratched. One fifth will not play properly. You have 40 CDs. How many will not work play properly

2 answers:

abruzzese [7]3 years ago

8 0

So the 1/2 of the CDs that are scratched and the 1/5 that will not play properly would be counted towards the "How many will not work play properly."

So, you just want to find 1/2 of the CD count, and 1/5 of the CD count, and add them together.

1/2 of the CD count:

Just multiply 1/2 by 40. 1/2 * 40 = 40/2 = 20

So 1/2 of the CD count = 20.

Then 1/5:

1/5 * 40

40/5

8

So 8 = 1/5 of 40.

Since the total would be those two added together, you would add 8 and 20 together.

8 + 20 = 28

kvasek [131]3 years ago

6 0

1/2 of 40= 20

40/5=8

20+8=28

28 of your CDs will not work properly.

I hope this helps!

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Sarah uses 9.1 pints of blue paint and white paint to paint her bedroom walls. 4 5 of this amount is blue paint, and the rest is

bonufazy [111]

Answer:Amount of white paint used by Sarah =1.82 pints

Step-by-step explanation:

Amount of blue paint and white paint to paint her bedroom walls.=9.1 pints

Amount of blue paint used =4/5 x 9.1=7.28 pints

Amount of white paint used=Amount of blue paint and white paint to paint her bedroom walls -Amount of blue paint used

=9.1-7.28=1.82 pints

4 0

3 years ago

6(3X +5 ) = 7(2x +2)

boyakko [2]

Answer:

X=-4 last answer i got i hope it is helpful have a nice day

Step-by-step explanation:

Let's solve your equation step-by-step.

6(3x+5)=7(2x+2)

Step 1: Simplify both sides of the equation.

6(3x+5)=7(2x+2)

(6)(3x)+(6)(5)=(7)(2x)+(7)(2)(Distribute)

18x+30=14x+14

Step 2: Subtract 14x from both sides.

18x+30−14x=14x+14−14x

4x+30=14

Step 3: Subtract 30 from both sides.

4x+30−30=14−30

4x=−16

Step 4: Divide both sides by 4.

4x

4

=

−16

4

x=−4

Answer:

x=−4

5 0

2 years ago

Read 2 more answers

bella and camila are gathering leaves for their nature collection. bella has 18 leaves. camilla has twice as many leaves as bell

vaieri [72.5K]

Answer:

9

Step-by-step explanation:

18 + 18 is like 36 divied by 2 is 18 then dvide that by two is 9 so 9

8 0

2 years ago

Lori is three times as old as Michelle. In five years Michelle's age will be one half of Lori's age. How old are Lori and Michel

AURORKA [14]

Answer:

Lori's age is 15 years old and Michelle's age is 5 years old now

Step-by-step explanation:

Let

x-----> Lori's age

y ----> Michelle's age

we know that

$x=3y$ -----> equation A

$(y+5)=\frac{1}{2}(x+5)$ ----> equation B

substitute equation A in equation B and solve for y

$(y+5)=\frac{1}{2}(3y+5)$

$2y+10=(3y+5)$

$3y-2y=10-5$

$y=5$

Find the value of x

$x=3(5)=15$

therefore

Lori's age is 15 years old and Michelle's age is 5 years old now

7 0

3 years ago

9x-6y=-12 and -2x+3y=-4 by elimination

lawyer [7]

Answer:

x = 4, y = 4 or you can say (4, 4)

7 0

3 years ago