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Kamila [148]
2 years ago
5

If x=2 y=4 a=3 b=6 and c=2 find the value of

Mathematics
1 answer:
Molodets [167]2 years ago
5 0

Answer:

I didnt know but i worked it out and searched it up and i got this

Step-by-step explanation:

(2a+4c-5b+2a+5b-4c)

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A set of pulleys is used to lift a piano with a mass of 102 kg. The piano is lifted 3 meters in 1 minutes. How much power is use
agasfer [191]

Answer:

50.031 watts

Step-by-step explanation:

Formula

Power = Force * distance / time

The units are critical

distance = meters

time = seconds

force = newtons = kg * m / s^2

Solution

F = m * a

a = 9.81

m = 102 kg

F = 102 * 9.81 = 1000.62 Newtons

T =  minute = 60 sec/min * 1 min

T = 60 seconds

d = 3 meters

Power = 1000.62 * 3 / 60

Power = 50.031

3 0
2 years ago
What is the measure of ZRMN?
Volgvan
Yes! Yup your right! Congrats yup!
3 0
2 years ago
Can someone help me ​
Sloan [31]

Answer:

The volume is 75

Step-by-step explanation:

because the volume is the width, length, and height, add them together.

7 0
3 years ago
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a woodworker wants to cut a board that is 8.225 feet long into 5 equal pieces. How long will each of the boards be?​
jok3333 [9.3K]

Answer:

1.645 feet

Step-by-step explanation:

To solve this you must divide the total length by 5. 8.225/5=1.645. Each board will be 1.645 feet long

3 0
3 years ago
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Tony’s deposit earned $40.80 in simple over 3 years in an account with an interest rate of 1.7%. How much did Tony deposit?
Vsevolod [243]

Answer:

Tony's deposit was $800.

Step-by-step explanation:

we know that

The simple interest formula is equal to

I=P(rt)

where

I is the Final Interest Value

P is the Principal amount of money to be invested

r is the rate of interest  

t is Number of Time Periods

in this problem we have

t=3\ years\\ I=\$40.80\\r=1.7\%=1.7/100=0.017

substitute in the formula above

40.80=P(0.017*3)

P=40.80/(0.017*3)

P=\$800

4 0
3 years ago
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