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KATRIN_1 [288]
3 years ago
15

A group of people planned to go to the amusement

Mathematics
1 answer:
Crank3 years ago
7 0

Answer:the greatest amount of children that can go is 30

Step-by-step explanation:

$20 x 30= $600

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Can someone explain how you do fractions like adding them? And what rules they have to find the answer?
frozen [14]

Answer:

Hope this image helps you. (sorry if it's tiny writing.)

Step-by-step explanation:

7 0
2 years ago
Exterior angle theorem <br> what is the value of u? I’m willing to give brainlist!!
KengaRu [80]
Answer: 45

Explanation: two angles that form a Line always equal 180 degrees, so we start with the equation 180-u+47, which is the measure of the missing interior angle measure. All of the angles inside of a triangle also equal 180 degrees, so we can set up this equation to find U:
u-18+u+(180-u+47)=180
We can start to simplify by first simplifying what’s inside the parenthesis:
u-18+u+153-u=180
Then you solve the equation to get
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4 0
2 years ago
Two passenger train, A and B, 450 km apart, star to move toward each other at the same time and meet after 2hours.
likoan [24]

Let v be the speed of train A, and let's set the origin in the initial position of train A. The equations of motion are

\begin{cases}s_A(t) = vt\\s_B(t) = -\dfrac{8}{7}vt+450\end{cases}

where s_A,\ s_B are the positions of trains A and B respectively, and t is the time in hours.

The two trains meet if and only if s_A=s_B, and we know that this happens after two hours, i.e. at t=2

\begin{cases}s_A(2) = 2v\\s_B(2) = -\dfrac{16}{7}v+450\end{cases}\implies 2v = -\dfrac{16}{7}v+450

Solving this equation for v we have

2v = -\dfrac{16}{7}v+450 \iff \dfrac{30}{7}v=450 \iff v=\dfrac{450\cdot 7}{30} = 105

So, train A is travelling at 105 km/h. This implies that train B travels at

105\cdot \dfrac{8}{7} = 15\cdot 8=120 \text{ km/h}

5 0
3 years ago
The price of one share of stock in BadInvestment.com plunged 14 points in 4 weeks. Find the average change in the stock price pe
kiruha [24]
4 weeks at 7 days per week = (4 x 7) = 28 days

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3 0
3 years ago
The following formula can be used to find the distance that a person has run.
Mrrafil [7]
So distance = rate × time. You would do 3/4 × 5.5, which would get you 4.125.
8 0
3 years ago
Read 2 more answers
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