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exis [7]
3 years ago
7

Please help. Will give brainliest, five stars, thanks and 10 points. At a nursery, the mean age of 4 children is 31 months. Katy

joins the nursery. The mean age of all 5 children is now 30 months. Work out the age of Katy.
Mathematics
2 answers:
saw5 [17]3 years ago
7 0
She would be about 1/6 years old
Grace [21]3 years ago
5 0

Answer:

total age of the four children is 4×31=124 months.

The total age after Katy joins is 30×5=150 months.

The age of Katy is the final total minus the original total,which is 150-124=26 months.

The age of Katy in years is 26 divided by 12 which results to 2 1/6years

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3 years ago
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6 men and 8 women are going to be assigned to a specific row of seats in a theater. If the 14 tickets for the numbered seats are
Sedbober [7]
If exactly one woman is to sit in one of the first 5 seats, then it means that 4 men completes the first 5 seats.
No of ways 4 men can be selected from 6 men = 6C4 = 15
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No of ways <span>that exactly one woman is in one of the first 5 seats = 15 * 120 * 8 * 5 = 72,000

No of ways 14 people can be arranged in 14 seats = 14!

Probability that exactly one woman is in one of the first 5 seats = 72,000 / 14! = 0.0000008259 = 0.000083%
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8 0
2 years ago
15 pts!!!<br><br> solve for n.<br><br> −1/2n = 1/3 + 5/8
Nimfa-mama [501]
The answer is - 1 and 11/12.
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3 years ago
A spherical cantaloupe is cut in half. The visible cross-section has an area of 5252 in2. The volume of the cantaloupe is _____
artcher [175]

Answer:

V = 286319.465 cm3

Step-by-step explanation:

First, you have to find the radius to be able to find the volume of a sphere.

The equation for the area of a circle is pi r^2 so you have to so some algebra.

5252 = pi r ^2

5252/pi = r^2

1671.76352 = r^2

sqrt(1671.76352) = r

r = 40.8872048

then you do the equation for the volume of a circle which is 4/3 pi r^3

4/3 pi (40.8872048)^3

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286319.465

V = 286319.465 cm3

6 0
2 years ago
What is the slope of (-3,-6) and (4,7)​
Gelneren [198K]

Answer:

13/7

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(7-(-6))/(4-(-3))

m=(7+6)/(4+3)

m=13/7

3 0
3 years ago
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