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castortr0y [4]
3 years ago
13

Caroline, Colin & Sarah share some money.

Mathematics
1 answer:
Mumz [18]3 years ago
8 0

Answer:

Colin and Sarah get  1 - 1/9  = 8/9 of the money

A ratio   of 3 :1 means that there are 4 parts  of  the 8/9....so....each part  =  8/9 * 1/4  = 8/36  = 2/9

And Colin gets 3 parts of  the  8/9  =  3 * 2/9  =  6/9   = 2/3 of the money

Step-by-step explanation:

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This is new stuff and looks way hard
Elan Coil [88]

Answer:

Step-by-step explanation:

A. 9p⁴q⁶

Because 3²=9, (p²)²=p⁴, and (q³)²=q⁶

6 0
3 years ago
a house and lot cost $120,000. if the house cost 3 times more than the lot, how much did the house cost?
AleksandrR [38]

Answer:

$90,000

Step-by-step explanation:

We can can use substitution for this. First, we need to create two separate problems that represent this situation. The house and the lot together cost 120000, so we can make the equation h+l=120000. We also know that the house is worth 3 lots, so we can make the equation h=3l. Because h=3l, we can substitute for h, making the equation 3l+l=120000, or 4l=120000. To isolate l, we have to divide both sides by 4. If we do that, we get l=30000. Now, we have to substitute to find h. Our new equation is h+30000=120000. To isolate h, we have to subtract 30000 from each side. If we do this, we get h=90000. That's our answer.

Hope this helps!

7 0
2 years ago
Byron and Cari are best friends. Byron wants to give a collage photo frame to Cari on her birthday. He measures the photo frame
rewona [7]

Answer:

The answer is $1512.

Step-by-step explanation:

First, multiply 12 by 18, you get 216. Then multiply that by 7, you get 1512. Bryon will need $1512 to cover his photo frame.

4 0
3 years ago
If c=12 find a right triangle 90 degrees 45 degrees 45 degrees
slega [8]

If is a triangle 90°, 45°, 45° then the sides are in ratio 1 : 1 : √2.

If c = 12 is a hypotenuse, therefore we have the equation:

a\sqrt2=12\ \ \ \ |\cdot\sqrt2\\\\2a=12\sqrt2\ \ \ \ |:2\\\\\boxed{a=6\sqrt2}

If c = 12 is a leg, therefore we have:

\boxed{a=12\sqrt2}

4 0
3 years ago
What is the potential energy of a rock that weighs 100 newtons that sits on a hill 300 meters high​
postnew [5]

Answer:

30000J or 30 KJ

Step-by-step explanation:

Formula for finding Gravitiational Potential Energy or GPE = mgh (or Wh since W = mg)

Given

W = 100N

h = 300m,

GPE = Wh = 100 x 300 = 30000J or 30 KJ

6 0
2 years ago
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