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Luda [366]
2 years ago
9

What is the solution of 3x+y=70 and x+y=44 using elimination

Mathematics
1 answer:
Mkey [24]2 years ago
4 0

Answer: y = 31 and x = 13

Step-by-step explanation: Look at the image from the top left to top right, then to bottom right to bottom left.

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A Crane Lifts a load of 4000N to a height of 20m in 5 seconds. Calculate the power of the Crane in horse power​
Digiron [165]

Answer:

2.54379284 hp.

Step-by-step explanation: Torque is defined as the engines rotational force.  First we find the distance =  m in equation- then we use the formula Power = work/time = 16.7/ 5 = 3.34 and Horsepower formula is given by. Horsepower = (Torque × Speed) / 5252. HP = (3.34 × 4000) / 5252. HP = 13360/5252. HP = 2.54379284 hp.  

Given :    W=4000    m=?        h=20 m                      

Time of operation         t =5 s

Work done in lifting a box            W=mgh= ? ×12×20=4000 = m = 4000/240=16.6666667 = 16.7KG

Power required         P=  W/t   =  w/p = 120000/120 =1000 watts    We divide 60/5 = 120 then divide by 10 = 12 (being g)

3 0
3 years ago
Find the slope from the points given: <br> (18, -5), (18, 20)
Ivahew [28]

Answer:

UNDEFINED

Step-by-step explanation:

change in y over the change in x is how you'd find slope, however, x is the same in both of these, making this a limitation not an equation, therefore the slope is undefined 18-18 = 0 -> Anything divided by zero as a slope is undefined.

3 0
3 years ago
Two cars start at a given point and travel in the same direction at average speeds of 45 miles per hour and 52 miles per hour (s
Citrus2011 [14]

Answer:

half apart

Step-by-step explanation:

hope it help you

7 0
3 years ago
Raj is 53.56 inches tall. He is 1.3 times as tall as his younger sister. How tall is Raj's younger sister
vredina [299]

Answer:

41.2 inches tall

Step-by-step explanation:

53.56 / 1.3 = 41.2

3 0
3 years ago
Read 2 more answers
Yeah i need help please
Lelu [443]
It should be 8 if I’m not mistaken
6 0
3 years ago
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