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3 years ago

Carla bought 66 inches of pink ribbon and 36 inches of white ribbon. She wanted to cut each ribbon into 6 equal pieces.

1 answer:

8 0

The question is a little confusing. I would probably say multiplication? You need to divide both by 6, because she wants 6 pieces to fit into both values. So 66/6=11 and 36/6=6. Then I suppose a subtraction to find the difference, which would be 11-6=5, so 5 inches difference between one piece of pink and one piece of white. Hope I got this right and that was actually what the question was asking haha. Sorry if not

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Find the area of a circle with radius equal to 7.

Finger [1]

Answer:

153.86 square units OR 49π OR 154 square units

Hope that helps!

Step-by-step explanation:

A = 49 x pi

A = 153.86

Hope that helps!

7 0

3 years ago

a collection of dimes and quarters is worth $19.85. There are 128 coins in all. How many of each type of coin are in the collect

PolarNik [594]

Number of dimes were 81 and number of quarters were 47

Solution:

Let "d" be the number of dimes

Let "q" be the number of quarters

We know that,

value of 1 dime = $ 0.10

value of 1 quarter = $ 0.25

Given that There are 128 coins in all

number of dimes + number of quarters = 128

d + q = 128 ------ eqn 1

Also given that collection of dimes and quarters is worth $19.85

number of dimes x value of 1 dime + number of quarters x value of 1 quarter = 19.85

$d \times 0.10 + q \times 0.25 = 19.85$

0.1d + 0.25q = 19.85 -------- eqn 2

Let us solve eqn 1 and eqn 2

From eqn 1,

d = 128 - q -------- eqn 3

Substitute eqn 3 in eqn 2

0.1(128 - q) + 0.25q = 19.85

12.8 - 0.1q + 0.25q = 19.85

12.8 + 0.15q = 19.85

0.15q = 7.05

Therefore from eqn 3,

d = 128 - q

d = 128 - 47

Thus number of dimes were 81 and number of quarters were 47

4 0

3 years ago

An item costs x dollars and then a 20% discount is applied

Marat540 [252]

Answer:

If an item is x dollars and 20% discount is applied, the new price will be: 0.8x

Step-by-step explanation:

100 - 20%(20) = 80

80 = 80% or 0.8

So, the remaining of the price of x will be 0.8x.

7 0

3 years ago

Which is the first step in simplifying the expression 2(x + 3) + 5?

mina [271]

I believe the answer would be B

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3 years ago

point P is located at (-2, 7), and point R is located at (1, 0). find the y value for the point Q that is located 2/3 the distan

natulia [17]

Answer: 7/3

Step-by-step explanation:

R-P= (3,-7). the displacement vector.

P+x(R-P) moves to x times distance between

P+(R-P) = R moves to 100% of the distance.

Q = P+2/3(R-P)

= (-2,7)+2/3(3,-7)

= (-2,7)+(2,-14/3)

= (0,7-14/3)

= (0,7/3)

= (0,2.3333...)

7 0

3 years ago