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Feliz [49]
3 years ago
12

The length of a rectangle is 4 cm more than 3 times its width. If the area of the rectangle is 15 cm², find the width.

Mathematics
1 answer:
JulsSmile [24]3 years ago
8 0

Answer:88888888

Step-by-step explanation:

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Find the length and width of a rectangle that has the given perimeter and a maximum area. perimeter: 244 meters
MissTica
We know that

[perimeter of rectangle]=2*(<span>length+width)
</span>
Let
x-----------> length
y-----------> width
so
P=2*(x+y)-----------> 244=2*(x+y)-----> x+y=122-------> y=122-x

Area=x*y-------> x*(122-x)----> 122x-x²

find the derivative function and equals to zero

122-2x=0-----> 122=2x----------> x=61 m
y=122-x------> y=122-61---------> y=61 m

<span>the maximum area is given by a square
</span>
the answer is
is a square of side 61 m


6 0
3 years ago
Each day, I use 4 bags of milk for tea. In how much of a day wlll I use 1/2 of a bag of milk?
Slav-nsk [51]
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? day use 1/2 bag

Cross multiply
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3 0
2 years ago
Find the fifth term of the geometric sequence whose first term is 81 and whose common ratio is 1/3.(1 point)13
Ludmilka [50]

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7 0
1 year ago
3/21 =1/x what’s the value of x
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The value of x is 7 because 3/21= 7 so it’s the same as 1/7.
6 0
2 years ago
Read 2 more answers
Multiply and reduce to lowest terms? 1. 2 1/7 * 4 3/8 = user: 10 1/4 - 9 5/6 =
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Number 1 is 9 3/8

10 1/4-9 5/6 is 5/12 hope it helps
6 0
3 years ago
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