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gregori [183]
3 years ago
8

Help? Question is in the screenshot

Mathematics
1 answer:
stira [4]3 years ago
5 0

Hi there!

Recall the formula:

Δd = vt, where:

v = velocity (mph in this instance)

t = time (hours)

Since the second car starts 2 hours after the first car, we can write this as:

Time for second car: t - 2

Set the two equations equal to each other:

55(t - 2) = 45t

Solve for t:

55(t - 2) = 45t

Simplify:

55t - 110 = 45t

10t = 110

t = 11 hours

Plug into one of the equations:

distance travelled = 45(11) = 495 miles

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Consider a political discussion group of 8 democrats, 8 republicans and 6 independent suppose the teo groups meme bet are random
BartSMP [9]

Answer:

The probability of selecting two democrats is 1/380

Step-by-step explanation:

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Here we are given the people as,

8 democrats, 8 republicans and 6 independent.

So total number of people are: 8+6+6=20

Probability of choosing first democrat = 1/20

Probability of choosing first democrat = 1/19

Thus P( two democrats in succession ) = 1/20 ×1/19

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#SPJ10

3 0
2 years ago
Z + 1/z = 2 ; z = (?)
7nadin3 [17]
<span>Z + 1/z = 2
Multiply 1 by both sides
z+z=2
Add z and z together
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Final Answer: z= 1</span>
7 0
3 years ago
Read 2 more answers
Emily and John each ran at a constant speed for a 100-meter race. Each runner’s distance for the same section of the race is dis
VikaD [51]

Answer:

John and 10

Step-by-step explanation:

8 0
3 years ago
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Estimate a 15% tip on a dinner bill of $49.71 by first rounding the bill amount to the nearest ten dollars.
Anna71 [15]

Answer:

$ 7.50

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x   ------  15%

x=50*15/100=  7.5

5 0
4 years ago
Tara is the editor of the school newspaper. She tries to devote about 1/2 of the paper to news, 1/3 to pictures, and the remaind
Klio2033 [76]
5/6 of the paper is devoted to news and pictures

first I made the fraction have equal denominators which was 6 by doing that I multiplyed the numerator and the denominator

1/2
1×3=3
2×3=6
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1/3
1×2=2
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now you would be able to add the numerators, so 2+3=5
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4 0
3 years ago
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