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gregori [183]
3 years ago
8

Find two numbers whose ratio is 3:7 and whose sum is 150

Mathematics
1 answer:
mr Goodwill [35]3 years ago
6 0
3x-first\ number\\7x-second\ number\\\\3x+7x=150\\10x=150\ \ \ \ \ |:10\\x=15\\\\3\cdot15=45\\7\cdot15=105\\\\Searched\ number\ are\ 45\ and\ 105
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Judy uses 9.7 pints of blue paint and white paint to paint her bedroom walls.3/5
Sindrei [870]

Answer:

3.88 Pints

Step-by-step explanation:

First we need to find the amount of blue paint that was used. We can do that by multiplying 9.7 by 0.60 since that is 3/5 in decimal form

9.7*0.60=5.82

Now we know how much blue paint was used, now we just need to find how much white paint was used. We can do that by subtracting our amount of blue paint from the total amount of paint used

9.7-5.82=3.88

thus, 3.88 is the amount of white paint used

8 0
2 years ago
Simplify: 2x^2(4x^3 - 3x^2 + 6x)
Blababa [14]

Answer:

8x

Step-by-step explanation:

3 0
3 years ago
In a bag there are blue sweets and red sweets. The ratio of blue sweets to red sweets is 5:3 What fraction of the sweets are blu
levacccp [35]

Answer:

5/8

Step-by-step explanation:

SUM OF RATIOS = 5 + 3 = 8

fraction of blue sweet = blue sweet ratio / sum of ratios = 5/8

4 0
2 years ago
Find the median of this set of data 34 36 30 37 40 30 42 a 37 b 35 c 36 d 30
shusha [124]

Answer:

<h2>36</h2>

Step-by-step explanation:

The median is the value that separates the higher half from the bottom half of the data sample (middle value).

We have

34, 36, 30, 37, 40, 30, 42

Write from the smallest to the largest number

30, 30, 34, 36, 37, 40, 42

3 0
3 years ago
ONLY 1% OF PEOPLE GET THIS RIGHT AND One rabbit saw six elephants while he was going to the river. Each elephant saw two monkeys
Dvinal [7]

Answer:

31 animals

Step-by-step explanation:

1 rabbit + 6 elephants + 6*2=12monkeys + 12 parrots = 31 animals

5 0
3 years ago
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