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xz_007 [3.2K]
3 years ago
7

The train ride at the zoo covers a distance of 2 1/2 miles in 1/4 of an hour. At what rate in miles per hour does the train go

Mathematics
2 answers:
fredd [130]3 years ago
6 0

Answer:

10

Step-by-step explanation:

2 1/2*4

Ganezh [65]3 years ago
3 0

Answer:

10 mph

Step-by-step explanation:

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I need help asap!!!!!
Svetllana [295]
Answer: 130

In order to solve for <4, you need to know that supplementary angles add up to 180°. 
<3 = 50
180 - 50
130

**For future questions**
1. The sum of the interior angles of a triangle is 180°
2. Alternate interior angles are congruent
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See attachment below. 

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Use pascal's triangle to expand the binomial (x+3)^4
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Step-by-step explanation:

6 0
3 years ago
Which relation is a function? <br><br><br> A.<br><br><br> B.<br><br><br> C.<br><br><br> D.
SIZIF [17.4K]
A function is relationship where a member of the Domain maps to one and only one member of the Range.

To prove a relationship is a function, a VERTICAL LINE TEST may be performed.  If a vertical line cuts the graph of a relationship only once then it is a function if not, then it is not.

View the image attached for the test.   

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6 0
3 years ago
What term describes a pair of vertical angles that are also supplementary: acute obtuse right straight?
IgorC [24]
Your answer would be straight!!
7 0
3 years ago
Read 2 more answers
Veronica has been saving dimes and quarters she has 110 coins in all and the total value is 18.50 how many dimes and quarters do
Lady_Fox [76]

This problem can be solved by the chicken rabbits method or you can just do simple algebra.

I.) Chicken and rabbits method

First assume all 110 coins are dimes and none are quarters.

We will have a total value of 11 dollars

Now for each dime we switch out for a quarter, we adds 15 cents to the total value.

18.50-11=7.50 dollars

There are 750/15=50 group of 15 cents in the 7 dollars and 50 cents.

This also meant that we need to switch out 50 dimes for 50 quarters.

So we have 50 quarters.

That first method is very good and very quick once you get the hang of it, now I'm going to show you the algebraic way to solve this.

Let's say there are x dimes and y quarters.

Set up equation

x+y=110

10x+25y=1850

Now solve multiply first equation by 10

10x+10y=1100

subtract

15y=750

y=50

Now we set the numbers of quarters to y so the answer is 50 quarters.

I personally recommend using algebra whenever you can because the practice is very important and you will eventually get really fast at setting up and solving equations. The first method is faster in this case but the second is more generalize, hope it helps.

6 0
3 years ago
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