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Burka [1]
3 years ago
11

At 2:00 pm there are 350 freshmen and 200 sophomores at a school carnival. After 2:00 pm 20 freshman leave every hour and 35 sop

homores arrive every half hour.
What is the ratio of freshman to sophomores at 4:00 pm in fraction form
Mathematics
2 answers:
deff fn [24]3 years ago
7 0

Answer:

f(4)=350−20(4)200+35(4)=270340=2734.

Step-by-step explanation:

Let x be the number of half-hour intervals since 2:00 p.m.

The number of freshmen can be modeled by P(x)=350−20x and the number of sophomores can be modeled by Q(x)=200+35x.

There are 4 half-minute intervals in two hours, so f(4)=350−20(4)200+35(4)=270340=

27/34.

dmitriy555 [2]3 years ago
5 0

Answer:

160:340

Step-by-step explanation:

The hours between 2:00pm and 4:00pm is 2 hours. If originally 350 freshman and 200 sophomores are at the carnival, and 20 freshman leave every hour, we can determine how many freshman left in 2 hours:

=20\cdot{2}=40

and if 35 sophomores arrive every half our, we know that for every two hours there is 4 half hours, therefore:

=35\cdot{4}=140

The amount of freshman at 4:00pm:

200-40=160

and the amount of sophomores:

200+140=340

the ratio is 160:340

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2x + 8 = -4 solve for c<br> Show work please
andrew-mc [135]

Answer: x=-6

Step-by-step explanation:

Given

2x + 8 = -4

Subtract 8 on both sides

2x + 8 - 8 = -4 - 8

2x = -12

Divide 2 on both sides

2x / 2 = -12 / 2

x = -6

NOTE: I assume the questions "solve for c" actually means "solve for x"

Hope this helps!! :)

Please let me know if you have any questions

7 0
2 years ago
Can anyone help me please if not its okayy!!:)​
NISA [10]
1. a (n) = -0.6(n) + 14.6
2. a (12) =7.4 sec
3. 6th race

Would you like an explanation?
3 0
3 years ago
Please help ASAP thanks
hjlf

Answer:

x = 2.5 inches. Or

x = 5/2

Step-by-step explanation:

Length: 7 + 2x

Width: 5 + 2x

Note that you have to add x at each end of the picture and onto each part of the width.

The entire area is 120 square inches.

Formula

L*W = Area

(2x + 7)(2x + 5) = 120

Solution

4x^2 + 10x + 14x + 35 = 120                Subtract 120 from both sides. Add xs

4x^2 + 24x + 35 - 120 = 0

4x^2 + 24x - 85 = 0                             Factor

(2x + 17)(2x - 5)

2x + 17 has no meaning. It will give -  8.5 which is not possible.

2x - 5 =0

2x = 5                                                  Divide by 2

x = 5/2

x = 2.5

Note: I don't know which one the computer is looking for.

8 0
3 years ago
Read 2 more answers
What is the measure of KPN?
Debora [2.8K]

Answer:

angle KPN=95 degree

Step-by-step explanation:

angle KPN = angle JPO (because they are vertically opposite angles)

Now,

angle JPO+angle LOP=180 degree(being co interior angles)

angle JPO + 85 =180

angle JPO =180-85

angle JPO =95

since angle JPO is equal to KPN ,angle KPN is 95 degree

6 0
3 years ago
What the answerr please​
Shkiper50 [21]

Answer:

B

Step-by-step explanation:

Rise over run

3 0
3 years ago
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