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tester [92]
3 years ago
8

the erea of a concrete rectangular pathway is 350 m2 and its perimiter pathway is 90m.what is the length of the pathway

Mathematics
1 answer:
givi [52]3 years ago
7 0

Let length = L m and width = W m. Then:-

LW = 350

2L + 2W = 90

from the above equation:-

L = (90 - 2W) / 2

Substituting for L in the first equation:-

W(90 - 2W) / 2 = 350

90W - 2W^2 = 700

2W^2 - 90W + 700 = 0

(2W - 70)(W - 10) = 0

W = 35 , 10

therefore L = 10, 35

Answer Length = 35m and width = 10 m

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torisob [31]

Answer:

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3 0
3 years ago
The probability of event A is 0. 48, the probability of event A and B is 0. 21, and the probability of events A or B is 0. 89. W
Mice21 [21]

Probabilities are used to determine the chances of an event

The probability of event B is 0.62

The probabilities are given as:

\mathbf{P(A) = 0.48}

\mathbf{P(A\ and\ B) = 0.21}

\mathbf{P(A\ or\ B) = 0.89}

To calculate the probability of event B, we make use of the following formula

\mathbf{P(A\ and\ B) = P(A) + P(B) - P(A\ or\ B)}

So, we have:

\mathbf{0.21 = 0.48 + P(B) - 0.89}

Collect like terms

\mathbf{P(B)= -0.48  +0.21 + 0.89}

\mathbf{P(B)= 0.62}

Hence, the probability of event B is 0.62

Read more about probabilities at:

brainly.com/question/11234923

7 0
3 years ago
HELP............Graph. y+1=1/3(x−3) (it has to have 2 points)
natta225 [31]
The intercept method of graphing is quick and easy.

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  Multiply both sides by 3:  3 = x - 3.  Then x = 6, and the x-int. is (6, 0).

Find the y-int by setting x = 0 and solving for y:

</span><span>y+1=1/3(0−3)
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Plot these 2 points.  Then draw a line thru them.</span>
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3 years ago
The product of 6 and a number (n) is 48 . Which equation shows this relationship? ANSWER CHOICES: 6n=48 n+6=48 48n=6 n-6=48
leva [86]

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6n=48

Step-by-step explanation:

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6×n=48

6n=48

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3 years ago
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sveta [45]

Answer: x=7

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×+4=4×-17

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6 0
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