Kim, Laura and Molly share £385

1 answer:

5 0

Set x equal to the amount of money Kim gets, and y for Molly's money.

x = 2/5y, since the ratio is 2:5.
y = 105 + x, since Molly has 105 more pounds than Kim.

Substitute x into this equation, so that y = 105 + 2/5y. Subtract 2/5y from both sides to get 3/5y = 105. Divide each side by 0.6 (equivalent to 3/5) and you get y = 175, which is how much Molly has. Kim gets 2/5 of Molly's share (or 105 fewer pounds), so she has 70.

70 + 175 (Kim and Molly's shares) is equal to 245. Therefore, Laura receives the remaining 140 pounds.

140/385 = a/100
Cross multiply so that 385a is 14000. Divide by 385 to get 36.4 (rounded).

Thus, Laura receives about 36.4% of the total money. Hope this helps (:

You might be interested in

Please answer question #45 for me!!!

mel-nik [20]

Convert the mixed fractions into improper fractions and divide them to get them into decimals. Then see if pi is in between those numbers.

Ex: 2 3/4 = 11/4 = 2.75

3 0

2 years ago

Factored completely, the expression 3x^2 - 3x - 18 is equivalent to

Dima020 [189]

Answer:

3(x−3)(x+2)

Step-by-step explanation:

4 0

2 years ago

Steps to solve 10.3=0.6y solve the y

Nat2105 [25]

All you need to do is divide 0.6 into both sides.

10.3/0.6= 17.166666666667 ( you could round up to 17.2)

I hope this helps!

~cupcake

4 0

3 years ago

Read 2 more answers

given that the center of a circle is at point (-3,5) and that the radius of the circle is 6 units, write the the equation of the

Anika [276]

The equation of a cricle is
$(x-h)^{2}+(y-k)^{2}=r^{2}$
h being the x coordinate of the given point and k being the y coordinate of the given point (r also being the radius).

Now we have to plug the points into the equation
$(x--3)^{2} +(y-5)^{2} = 6^{2}$
now just simplify the the equation
$(x+3)^{2} +(y-5)^{2} = 36$

3 0

3 years ago

PLEASE HELP!!

77julia77 [94]

Answer:

my best guess even though no answers i would say bout 12

Step-by-step explanation:

6 0

2 years ago