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pochemuha
3 years ago
6

isaac has a piece of rope that is 5 yards long. into how many 1/2 yard pieces of rope can isaac cut the rope

Mathematics
1 answer:
marusya05 [52]3 years ago
8 0
What you have to do is figure out how many half inches you need to have to figure out how many half inches equal 5 yards. Therefore if there are 12 inches in a foot, then that would be 24 half inches. So..... three feet equal 1 yards. So multiply 3 by 24. 3x24=72 so you would need 72 half inches 
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7x+9y=-41 and x+3y=1. Solve system of equations
galben [10]

9514 1404 393

Answer:

  (x, y) = (-11, 4)

Step-by-step explanation:

You can subtract 3 times the second equation from the first to eliminate y.

  (7x +9y) -3(x +3y) = (-41) -3(1)

  4x = -44

  x = -11

Substituting into the second equation gives ...

  -11 +3y = 1

  3y = 12

  y = 4

The solution is (x, y) = (-11, 4).

7 0
3 years ago
Anybody know how to solve this?
avanturin [10]
The answer would be A. I just did this yesterday. Do you want the steps?

4 0
3 years ago
Read 2 more answers
2n +9+5n=30 need help on this
Rus_ich [418]
2n+9+5n=30  combine like terms on left side

7n+9=30  subtract 9 from both sides

7n=21  divide both sides by 7

n=3
8 0
2 years ago
Read 2 more answers
Soon after taking an aspirin, a patient has absorbed 320 mg of the drug. after 3 hours, only 40 mg remain. find an exponential m
Anastaziya [24]
The equation will be of the form:
A(t)= A_{0} e^{rt}
where A is the amount after t hours, and r is the decay constant.
To find the value of r, we plug the given values into the equation, giving:
40=320e^{3r}
Rearranging and taking natural logs of both sides, we get:
ln\ 0.125=3r
r=\frac{ln\ 0.125}{3}=-0.693
The required model is:
A=A _{0} e^{-0.693t}
3 0
3 years ago
2) (-10) + (-7) shoe work
Sladkaya [172]
A negative plus a negative equals a negative so it's just -17
7 0
2 years ago
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