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Misha Larkins [42]
3 years ago
9

Please answer fasttt

Mathematics
1 answer:
-BARSIC- [3]3 years ago
4 0

Answer:

7.5 lb/cu ft

Step-by-step explanation:

75 lb / 10 cu ft = 7.5 lb/cu ft

You might be interested in
How do you do 83 divided by 3 with long division
bulgar [2K]

Answer:83÷3=27.6 or 27.667

Step-by-step explanation:

3 0
4 years ago
im's uncle is 4 times as old as his nephew Jim. In 10 years, Jim's uncle age will be 20 years more than twice Jim's age. How old
faltersainse [42]

Answer:

15 years old.

Step-by-step explanation:

Let Jim's age now be one unit (1u).

His uncle's age now is then 4 units.

Jim's age in 10 years = 1u + 10

Jim's uncle's age in 10 years = 4u + 10

In 10 years, Jim's uncle's age will be 20 years more than twice Jim's age.

Twice Jim's age =

2(1u + 10) = 2u + 20

Since Jim's uncle's age is 20 years more than this, we can say that his uncle's age is equal to

2u + 20 + 20

which is equal to

2u + 40

We found out that Jim's uncle's age in 10 years is 4u+10. Hence

4u + 10 = 2u + 40

We subtract 10 from both sides:

4u = 2u + 30

Therefore

2u = 30

and one unit is 15. Hence, Jim's age now is 15.

7 0
3 years ago
Please answer with explanation
NARA [144]

Answer:

2000 feet.

Step-by-step explanation:

Let the length of fence need be x feet.

Then we have the equation:

2lx = 19x + 4000

21x - 19x = 4000

2x = 4000

x = 2000.

4 0
3 years ago
1. (SLO) Simplify the expression: 6(b-7)
Sav [38]

1 → B

multiply each term in the parenthesis by the 6 outside

6(b-7) = 6b - 42

2 → D

multiply each term in the parenthesis by the 3 outside

3(4x+6y+2) = 12x+18y+6

3 → A

the value outside the parenthesis is -1, hence each term inside is multiplied by -1

-1(6x+5y) = -6x -5y


3 0
4 years ago
Read 2 more answers
150+25x=55x what is the answer?
posledela

Answer:

x = 5

Step-by-step explanation:

150+25x= 55x

      -25x  -25x

150= 30x

150/30 = 30x/30

x = 5

Hope this helps!

4 0
3 years ago
Read 2 more answers
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