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Maksim231197 [3]
3 years ago
13

The results of a car race are shown. Determine who drove fastest. Explain. (Cutwright 35 laps, 84 min)(Evans 42 laps, 96.6 min)(

Loza 38 laps, 102.6 min)
Mathematics
1 answer:
dsp733 years ago
6 0
Speeds
cutwrigth =35/84 =5/12 laps/min =0.417
evans =42/96.6=10/23 laps/min =0.435
loza =38/102.6 =10/27 laps/min =0.370
evans drove fastest
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What is the numerator of the simplified sum?
sashaice [31]

Answer:

4x + 6

Step-by-step explanation:

\frac{x}{x² + 3x + 2} + \frac{3}{x + 1}

To determine what the numerator would be, after simplifying both fractions, take the following steps:

Step 1: Factorise the denominator of the first fraction, x² + 3x + 2.

Thus,

x² + 2x + x + 2

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We would now have the following as our new fractions to add together and simplify:

\frac{x}{(x + 1)(x + 2)} + \frac{3}{x + 1}

Step 2: find the highest common factor of the denominator of both fractions.

Highest common factor of (x + 1)(x + 2) and (x + 1) = (x + 1)(x + 2)

Step 3: To add both fractions, divide the highest common factor gotten in step 2 by each denominator, and then multiply the result by the numerator of each fraction.

Thus,

\frac{x}{(x + 1)(x + 2)} + \frac{3}{x + 1}

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8 0
3 years ago
Hello can you please help me posted picture of question
MAXImum [283]
The answer is Letter C - 1/2,775

The probability of choosing one of them is 2 out of 75 while the probability of choosing the other one is 1 out of 74. 74 band members, not counting the other person (you or your bother).
 
Computation:
P = 2 / 75 * 1 / 74
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You can also multiply 75 with 74 to get a total of 5,550 then divide it by 2 students to be selected to get 2,775. Meaning one out of 2,775 possibilities.
8 0
3 years ago
Shaun had a collection of 840 matchbox vehicles. Of these vehicles, 15% are four-wheelers and 30% are convertibles. The rest are
lakkis [162]

Answer:

<h2>462</h2>

Step-by-step explanation:

15% of 840 is 126

30% of 840 is 252

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<u>+  126 </u>

<em> 378</em>

<em></em>

840 - 378 = <em>462</em>

or

--------------------------------------------------------------------------------------------------------------

55% of 840 is...

<em>462</em>

--------------------------------------------------------------------------------------------------------------

<em>Hope this helps! <3</em>

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