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3 years ago

3. Ellen has 3 times as many CD's as Sammy. Together they have 32 CD's. How many does

Mathematics

1 answer:

oksian1 [2.3K]3 years ago

8 0

Answer:

Step-by-step explanation:

sammy has 8 and ellen has 24 then add sammy's 8

24+8=32

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Please help with math

irakobra [83]

Answer:

5 and 6

Step-by-step explanation:

You have to find two numbers (in the chart) that have a difference of 3/8.

This is just one possiblity, there are other correct answers.

There is size 5 and 6. 9 and 4/8-9 and 1/8=3/8.

8 0

3 years ago

What are the coordinates of the pre image of B

garik1379 [7]

Answer:

Point B = (-8 , -2) ⇒ the second answer

Step-by-step explanation:

∵ The figure ABCD is reflected across the x-axis

∴ The sign of y-coordinates of each point will change

Ex: If the point (x , y) reflected across the x-axis

its image will be (x , -y)

∵ B' = (-8 , 2)

∴ B = (-8 , -2) ⇒ the second answer

3 0

3 years ago

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Find the power of 1.4 times 3??

Akimi4 [234]

Answer: 1.4 x 3 = 4.2

Step-by-step explanation:

1 x 3 = 3

.4 x 3 = 1.2

3 + 1.2 = 4.2

8 0

3 years ago

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What is lcm 104 and 76

WITCHER [35]

Lcm of 104 and 76 = 1976

4 0

3 years ago

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A hydraulic lift is to be used to lift a 2000-kg weight by putting a weight of 25 kg on a piston with a diameter of 10 cm. Deter

grigory [225]

Answer:

88 centimeters is the diameter of the cilinder

Step-by-step explanation:

The pressure on both ends of the lift must be the same. Assuming the piston is cilindrical, its area will be A=π*r² where r is half the diameter

Since pressure P=F/A And P1=P2

F1=2000kg.g

A1=π*r²

F2=25kg.g

A2=π*0.05²

2000/(π*r²)=25/(π*0.05²)

and we solve for A1

r²=2000*0.05²/25

$r=\sqrt{\frac{2000*0.05^2}{25}}$

r= $\sqrt{5}$ 20*0.05/5=0.44m or 44cm

This is the radius, meaning that the diameter will be twice this number

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2 years ago

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