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KiRa [710]
3 years ago
13

Clare, David and Elizabeth share 90 marbles in the ratio 4: 5: 6. Calculate the number of marbles that Clare receives

Mathematics
1 answer:
Rzqust [24]3 years ago
6 0
Claire receives 24 marbles. David gets 30 marbles and Elizabeth gets 36 marbles.


4x+5x+6x=90

15x=90

x=6

4(6)=24 for Claire

5(6)= 30 for David

6(6)= 36 for Elizabeth
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In a race, 16 out of the 25 bicyclists finished in less than 51 minutes. What percent of bicyclists
Sholpan [36]
I think it’s 25x if not send the equation answers
3 0
2 years ago
Find the length of CD
laiz [17]

Answer:

D

Step-by-step explanation:

Calculate the length using the distance formula

d = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = C(3, - 2) and (x₂, y₂ ) = D(7, - 8)

CD = \sqrt{(7-3)^2+(-8+2)^2}

      = \sqrt{4^2+(-6)^2}

      = \sqrt{16+36}

       = \sqrt{52} ≈ 7.2 → D

5 0
3 years ago
Read 2 more answers
Tom has 12.42 centimeters of yarn. If he wants to make the yarn into pieces that are 0.54 centimeters long, how many pieces can
natta225 [31]

Answer:

23 pieces of yarn

Step-by-step explanation:

12.42cm divided by 0.54cm = 23

pls mark brainliest....:)

5 0
3 years ago
Alana biked 12 miles in 48 minutes. What is Alana's speed in miles per minute?
marusya05 [52]
Question:- Alana biked 12 miles in 48 minutes. What is Alana's speed in miles per minute?

Answer:-

Set up a proportion.

12/48 = 1/x

Cross multiply.

12*x = 12x
48*1 = 48

12x = 48

12x/12 = 48/12 

x= 48/12
x= 4

Now, we have our final answer. x = 4

Final answer:- Alana bikes 4 miles per minute. 

6 0
3 years ago
the rectangle shown has an area of 105 square inches. the width is x+ 16 inches and the length is x. find the dimensions of the
Brums [2.3K]

Answer:

Length = 5

Width = 21

Step-by-step explanation:

(x)(x + 16) = 105

x^2 + 16x = 105

x^2 + 16x - 105 = 0

(x - 5) x ( x + 21) = 0

x - 10 = 0

x = 5

x + 21 = 0

x = -21

Now that we have the zeroes.

We have to find the most viable one to put in.

Using -21 would not make sense, so we will use 5.

Plug it in:

x = 5

(5) (5 + 16) = 105

5 ( 21) = 105

6 0
3 years ago
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