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grin007 [14]
3 years ago
5

Can any one please help me in number 4 please I really need help please

Mathematics
1 answer:
Reil [10]3 years ago
4 0

Answer:

24

Step-by-step explanation:

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If red oak lumber weighs 63 pounds per cubic foot, how much does one cord of red oak weigh? (A cord is a measurement for bulk wo
dsp73

Answer: Option C. 8,064 pounds

Solution:

Unit weight: U=63 pounds/foot^3

Total Weight: W=?

W=U*V

Volume: V

Length: l=8 feet

Width: w=4 feet

Height: h=4 feet

V=l*w*h

Replacing the knwon values in the formula above:

V=(8 feet)*(4 feet)*(4 feet)

V=128 feet^3

Replacing in the formula of total Weight:

W=U*V

W=(63 pounds/foot^3)*(128 feet^3)

W=8,064 pounds

8 0
3 years ago
You run one lap around a mile track every 8 minutes. Your friend runs around the same track every 10 minutes. You both start at
Ber [7]

Answer:

Step-by-step explanation:

first runs n+1 laps

and second runs n laps in the same time.

so (n+1)8=10n

10n=8n+8

10n-8n=8

2n=8

n=8/2=4

one lap=1 mile

4 laps=4 miles

4+1=5 laps=5 miles.

first runs 5 miles whereas second runs=4 miles.

3 0
3 years ago
Read 2 more answers
Find the difference.
PSYCHO15rus [73]
D how much randall occured in january?
8 0
3 years ago
Marlo buys 6 feet of ribbon to make bracelets. She needs 18 inches of ribbon to make 1 bracelet. How many bracelets can Marlo ma
ch4aika [34]

Answer:

4

Step-by-step explanation:

So, 6 feet is equal to 72 inches. You need 18 inches for one bracelet, so by dividing 72/18, you get 4. So, he can make 4 bracelets.

3 0
3 years ago
Read 2 more answers
PLEASE HELP PEOPLE!!!!!
Pavel [41]

4 rectangles are 6 x 4

4 triangles are 4x 4

1 square is 6x 6

Area :

6 x 4 = 24 x 4 = 96

1/2 x 4 x 4 = 8 x 4 = 32

6 x 6 = 36

96 + 32 + 36 = 164 square inches.

The answer is A

7 0
3 years ago
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