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Brilliant_brown [7]
3 years ago
9

Divide 15 in the ratio 3:2

Mathematics
1 answer:
STatiana [176]3 years ago
7 0
One way of approaching this would be to add up 3 and 2, obtaining 5, and then multiplying 15 by 3/5:

15(3/5) = 9

Then write and solve the equation of ratios:

3        9
-- = ------
2         x

Then 3x=18, and x=6.  Thus, 15 divides into 9 and 6, which has the ratio 3:2.
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Given the figure below, which of the following points name a line segment, a line, or a ray?
GuDViN [60]

Answer:

line

Step-by-step explanation:

A line segment is a part of a line.


4 0
3 years ago
H=255-21t-16t^2<br><br> PLEASE HELP!!
Colt1911 [192]

Answer:

3.15 seconds is the answer.

<u>Explanation</u>

when the ball touches the ground, h =0

hence,

0=255-21t-16t²

16t²+21t-225=0

here a=16 ,b=21, c= -225

t=   \frac{ - b± \sqrt{ {b }^{2}  - 4ac} }{2a} \\  \\ t=   \frac{ - 21± \sqrt{ {21}^{2}  - 4 \times 16 \times  - 225} }{2 \times 16} \\  =  \frac{ - 21 ± \sqrt{441 - ( - 14400)} }{32} \\  =  \frac{ - 21± \sqrt{14841} }{32}  \\  =  \frac{ - 21±121.82}{32}  \\  \\ t =   \frac{ - 21 + 121.82}{32}  \: or \:  \: t =  \frac{ - 21 - 121.82}{32}  \\ t = 3.15 \:  \: or \:  \: t =  - 4.46

time cannot be negative, hence t = -4.46 can be avoided

The ball takes 3.15 seconds to hit the ground.

4 0
3 years ago
How do you write 11/3 as a whole number?
nekit [7.7K]
3 2/3 or three and two thirds
4 0
3 years ago
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How to round to the nearest 10​
Ilia_Sergeevich [38]

Answer: If the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up. If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down.

6 0
3 years ago
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alan mixes 1 1/3 cups of milk with a can of condensed soup. He makes a total of 2 5/8 cups of soup. How many cups of condensed s
Ostrovityanka [42]

1 1/3 cup Milk + X cup CSoup = 2 5/8 coups Soup;

X = 2 5/8 - 1 1/3 = 21/8 - 4/3 = (21*3 - 4*8)/(3*8) = (63 - 32)/(24) = 31/24 = 1 7/24 cup

7 0
3 years ago
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