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e-lub [12.9K]
3 years ago
14

in a race in which 7 automobiles are entered and there are no ties, in how many ways can the first three finishers come in

Mathematics
1 answer:
Gennadij [26K]3 years ago
4 0
There are 3 slots

7 autos for 1st slot
6 for 2nd (1 went to 1st slot)
5 for 3rd

so there are 7*6*5 or 210 ways
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BIG POINTS
Savatey [412]
Let x be the amount invested at 7% and y the amount invested at 6%


We know that the yearly interest earned = 0.07(x) and 0.06(y)

x+y =4500

0.07x +0.06 y =290

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6 0
4 years ago
What is the hundreds place in 205
sdas [7]

Answer:

2

Step-by-step explanation:

It has the greatest value denomination in the number. We know that because it is the number followed by other numbers.

Best of luck

7 0
2 years ago
Read 2 more answers
The perimeter of the rectangle below is 128 units. Find the length of side VW .
crimeas [40]
First we write equation for perimeter of rectangle. Why? because we have been given that it is 128 units and maybe we can calculate something from it.

P = 2a + 2b    where 
a = 2(3y + 1 )  and   b = 2(2y +3)
P = 6y + 2 + 4y + 6 = 10y + 8 = 128
now we can solve for y
10y = 120
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Answer is 37

4 0
4 years ago
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A sample of 26women is​ obtained, and their heights​ (in inches) and pulse rates​ (in beats per​ minute) are measured. The linea
ruslelena [56]

Answer:

The pulse rate is 84.54bpm

Step-by-step explanation:

Given

\^{} y = 17.8 + 0.940x

Required

Find \^{}y when x = 71

Substitute 71 for x in: \^{} y = 17.8 + 0.940x

\^{} y = 17.8 + 0.940 * 71

\^{} y = 17.8 + 66.74

\^{} y = 84.54

<em>The pulse rate is 84.54bpm</em>

3 0
3 years ago
Solve the proportion: A printer can print 11 color pages in 2 minutes. How many color pages can the printer print in 7 minutes?
Ann [662]

Answer:

38.5

Step-by-step explanation:

7/2 = 3.5. 11×3.5= 38.5

6 0
4 years ago
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