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alisha [4.7K]
3 years ago
14

How many solutions does the system have?

Mathematics
2 answers:
lord [1]3 years ago
6 0
The answer is A exactly one solution
malfutka [58]3 years ago
3 0
The answer is A)Exactly one solution
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The Baltimore Marathon features a relay race.
Kazeer [188]

Answer:

S = 149\ min

or

S = 2\ hr\ 29\ min

Step-by-step explanation:

Let S be the sum of the times for all winning team.

Given:

leg 1. 32 minutes 56 seconds.

leg 2. 42 minutes 28 seconds.

leg 3. 34 minutes 34 seconds.

leg 4. 39 minutes 2 seconds

We need to find the total time to run all four  legs of the marathon.

Solution:

Sum of the times for all winning team.

Sum\ of\ the\ times = leg\ 1 + leg\ 2 + leg\ 3 + leg\ 4

Substitute running times for all legs.

S = 32\ min\ 56\ sec+ 42\ min\ 28\ sec + 34\ min\ 34\ sec + 39\ min\ 2\ sec

Now, we write the minutes and seconds separately.

S = (32+42+34+39)min+(56+28+34+2)sec

S = (147)min+(120)sec

120\ sec =\frac{120}{60} = 2\ min

S = (147)min+(2)min

S = 149\ min

Therefore, Total time taken by all four legs S = 149\ min  or S = 2\ hr\ 29\ min.

8 0
3 years ago
Part 2 Assignment (6 problems)
iragen [17]

Answer:

1. $327.60

2. $21,560.00

3. $2,208.28

Step-by-step explanation:

The formula for simple interest is:

I = Prt

where

I = amount of interest

P = principal amount

r = annual interest rate

t = number of years

The total future amount after earning simple interest is the principal polus the interest.

F = P + Prt

F = P(1 + rt)

1.

F = P(1 + rt)

F = $210(1 + 0.08 * 7)

F = $327.60

2.

F = P(1 + rt)

F = $14,000(1 + 0.06 * 9)

F = $21,560.00

3.

F = P(1 + rt)

F = $1,900(1 + 0.059 * 2.75)

F = $2,208.28

4 0
3 years ago
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1. 2x - 3y = -1 <br> y = x - 1 <br><br> Find the substitution
irina [24]
It might be x = 4, y = 3 or x = 1 and y = -1 if it’s not I’ll re-calculate it and write it down.
6 0
2 years ago
3, 10, 29, 66, 127 find the nth term
ozzi
The next term of the series, 3, 10, 29, 66, 127 is 218.
5 0
3 years ago
Which equation correctly solves the Pythagorean theorem, a2 + b2 = c2, for b, assuming a, b, and c are positive?
Molodets [167]

Answer:

Pythagorean Theorem: a2 + b2 = c2 b. NOTE: The side “c” is always the side opposite the right angle. Side “c” is ... Each of these is a correct answer. ... Step 2: put the values into the a2 + b2 = c2 formula and do the algebra to solve for the missing ... 12) Find the height of the triangle. Assume the lengths are given in meters.

Step-by-step explanation:

8 0
3 years ago
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