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Firdavs [7]
2 years ago
14

Rachel has 4 notebooks.Her mother gives her n notebooks.she wants to use the same number of notebooks in each of her 7 classes.

which expression shows the number of notebooks rachel will use for each class?
A.n+4/7
B.4÷7/n
C.4n+7
D.4+n+7​
Mathematics
1 answer:
HACTEHA [7]2 years ago
3 0

Answer:

i think its b

Step-by-step explanation:

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Answer:

Width is 10ft and length is 6ft.

Step-by-step explanation:

The area of a shape is the amount inside a shape. It is found using multiplication or A = l*w. Since the width is w and the length is 4ft less than its width or w - 4, use these expressions in the area formula to find their amount.

A = l*w\\60 = w(w -4)\\60 = w^2-4w

Subtract 60 from both sides and factor the quadratic to solve for w.

w^2 -4w - 60 = 0\\(w-10)(w+6) = 0

Set each factor equal to 0 and solve.

w - 10 = 0 so w = 10

w + 6 = 0 so w = -6.

Since w represents a length or distance it cannot be negative, this means the width is 10. The length which is w - 4ft is 10 -4 = 6. The length is 6 ft.

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3 years ago
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Kitty [74]
In this question we are asked to find the ratio of the number of chocolates which Lauren liked and the total of chocolates.

We know she doesn't like coconut and toffee, so she likes caramel, mint and cherry. When we count the ones she liked, we got 16+12+14=42.

When we add to find how many chocolates are there, we got 16+10+12+14+8=60.

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Step-by-step explanation:

Find the length of each of the four sides and add them all together. The short sides each measure 3 units and the long sides each measure 5 units. 3+3+ 5+5 = 16

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Answer:

The choose C. 24x+6y

Step-by-step explanation:

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I hope I helped you^_^

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