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Ray Of Light [21]
3 years ago
6

An elevator has a maximum of 2,000 pounds. There are 5 people on the elevator with the combined weight of 821 pounds. Write an i

nequality to solve how much more the elevator can hold
Mathematics
1 answer:
kati45 [8]3 years ago
6 0

Answer:

2,000 ≥ 821+x

Step-by-step explanation:

it is said that the maximum weight the elevator could hold is 2,000, so the weight in the elevator should be 2,000 or less then 2,000.

It is said that already 5 people are inside with a weight 821, in this case we only care about the weight

the inequality will look: 2,000 ≥ 821

now they asked us how much more weight can the elevator can hold

lets make (x) represent the extra weight

x= extra weight

the equation will be 2,000 ≥ 821+x

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jolli1 [7]

Answer:

Fred is 28 yrs old. Nathalie is 12yrs old

Step-by-step explanation:

Let Nathalie's age be x

Let Fred's age be a

x+a=40 yrs•••••1

4x+a=76yrs•••••2

a=40-x

Substitute a for 40-x in equation (2)

4x+40-x=76

3x=76-40

3x=36

x=12

a=40-12

a=28

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3 years ago
How do you calculate the area and the perimeter of a parallelogram and a triangle?
Mnenie [13.5K]

for parallelograms:

area = b(h)

so basically, the length times the height. just like how you would find the area of a square.

perimeter: just add all of the sides together.

for triangles:

area = 1/2(b) x h

so half the length multiplied by the height. for example, if the length was 4, you have to use half of that. so that means 2 times whatever the height is.

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7 0
3 years ago
Read 2 more answers
Tyler does squats and pushups. He wants to increase the number of each type of exercise by 20% by the end of the month. He curre
Semenov [28]

Answer:

Tyler currently does 40 squats

Step-by-step explanation:

Tyler does squats and pushups.

<u>Currently:</u>

Number of pushups = 25

Number of squats = x

Total number = 25 + x

<u>After increase:</u>

Number of pishups =25\cdot (1+0.2)=1.2\cdot 25=30

Number of squats =x\cdot (1+0.2)=1.2x

Total number =30+1.2x

If Tyler meets his goal, he will do a total of 13 more squats and pushups than he does now, thus

(30+1.2x)-(25+x)=13\\ \\30+1.2x-25-x=13\\ \\1.2x-x=13-30+25\\ \\0.2x=8\\ \\2x=80\\ \\x=40

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3 years ago
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madreJ [45]

Answer: B

Step-by-step explanation:

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3 years ago
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Hitman42 [59]

Answer:

b^2-c^2-10b+10c

Step-by-step explanation:

b^2-c^2-10(b-c)

b^2-c^2-10b+10c

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3 years ago
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