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noname [10]
3 years ago
13

The perimeter of a child’s rectangular sandbox is 18 feet . if the length of the sandbox is one foot longer than the width , wha

t equation can be used to find the length and width of the sandbox
Mathematics
1 answer:
Andrew [12]3 years ago
8 0

Answer:

2(b+1+b)= 18

Step-by-step explanation:

Perimeter of a rectangle= 2(l+b)

18 feet= 2(l+b)

length: l, breadth: b

Because the length of the sandbox is 1 foot longer, it will be:

b+1 = l

Substitute l with b+1

2(b+1+b)= 18

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Two separate tests are designed to measure a student's ability to solve problems. Several students are randomly selected to take
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Answer:

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Step-by-step explanation:

Given - Two separate tests are designed to measure a student's ability to solve problems. Several students are randomly selected to take both test and the results are give below

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8           0.707                      0.834

9           0.666                      0.798

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So,

Critical r = 0.602 for n = 11 and alpha = 0.05

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