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maria [59]
3 years ago
6

Fred lives on the 16th floor

Mathematics
1 answer:
lorasvet [3.4K]3 years ago
5 0
16 x 10
160 seconds - 2 min 40 sec

2 min 40 sec + 1 min
3 min 40 sec
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It is known that:the pair of variables x=5, y=7 is the solution to the equation ax–2y=1. Find the coefficient a.
kicyunya [14]

Answer:

a = 3

Step-by-step explanation:

Fill in the given values:

a*5-2*7 = 1 =>

5a = 1 + 14

a = 15/5 = 3

8 0
3 years ago
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The area of a rectangle is 216 square inches. If the perimeter is 60 inches, find the length and width of the rectangle
mojhsa [17]

A=Lw

P=2L+2w

216=Lw

W=216/L...substitute to Perimeter equation

60=2L+2(216/L)

60L=2L^2 + 432

2L^2-60L+432=0

2(L^2 - 30L + 216)=0

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3 years ago
X-2=3(x-4) what is the solution
Vladimir [108]
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3 years ago
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The scale of a map is 1 in. = mi. Find each length on the map
WITCHER [35]

The question gives the relationship to be

1in=21mi

We will interpolate to solve the question.

First Question: 147 mi

\begin{gathered} \text{If 1 in = 21 mi} \\ x\text{ in = 147 mi} \end{gathered}

Cross multiplying,

undefined

7 0
1 year ago
50! POINTS! HELP QUICK!
Lesechka [4]
I believe it is the first option. Hope this helps!
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