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2 years ago

Tallulah biked 84 miles at a rate of 10.5 miles per hour. Determine how many hours she biked. Use d = rt.

Mathematics

1 answer:

Lesechka [4]2 years ago

8 0

Answer:

8 hours

Step-by-step explanation:

84=10.5*x so

Let's solve your equation step-by-step.

84=10.5x

Step 1: Flip the equation.

10.5x=84

Step 2: Divide both sides by 10.5.

10.5x

10.5

x=8

Please mark me brainliest

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Tems11 [23]

Answer:

2.4

Step-by-step explanation:

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2 years ago

You spin each spinner once. You get $50 if you spin a 2 and a vowel. You get $25 if you spin a 2 and a consonant. You get $5 if

Tom [10]

The expected value of the game is $8.75.

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

The expected value is the <u>sum of each outcome multiplied by it's probability</u>.
A probability is the <u>number of desired outcomes divided by the number of total outcomes</u>.

The probability of spinning a 2 and a vowel is: $\frac{1}{4} \times \frac{2}{8} = \frac{2}{32}$ .
Thus, $\frac{2}{32}$ probability of getting $50.

The probability of spinning 2 and a consonant is: $\frac{1}{4} \times \frac{6}{8} = \frac{6}{32}$

Thus, $\frac{6}{32}$ probability of getting $25.

The probability of spinning 1 and a vowel is: $\frac{3}{4} \times \frac{2}{8} = \frac{6}{32}$ .
Thus, $\frac{6}{32}$ probability of getting $5.

32 - (6 + 6 + 2) = 18, thus, $\frac{18}{32}$ probability of earning $0.

The expected value is:

$E = \frac{2}{32}(50) + \frac{6}{32}(25) + \frac{6}{32}(5) + \frac{18}{32}(0)$

$E = \frac{100 + 150 + 30}{32}$

$E = \frac{280}{32}$

$E = 8.75$

The expected value of this game is of $8.75.

A similar problem is given at brainly.com/question/24961584

8 0

2 years ago

the ratio of the angle measures of a triangle are 3:3:4 what angle measures the triangles classification

TEA [102]

Step-by-step explanation:

sum of the ratio=3+3+4=10

now,

angle I = 3/10×180=54

angle II= 3/10×180=54

angle III=4/10×180=72

that shows th given triangle is isoceles

6 0

2 years ago

What is a word problem for this equation -2(-3.5)

Fiesta28 [93]

Every hand you lose in poker cost you -3.50. How much do you make if you win two hands.

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3 years ago

What is the SUM of the angle measures in a nonagon (9 sides)?

GenaCL600 [577]

Answer:

All sides are the same length (congruent) and all interior angles are the same size (congruent). To find the measure of the angles, we know that the sum of all the angles is 1260 degrees (from above)... And there are nine angles... So, the measure of the angle of a regular nonagon is 140 degrees.

Step-by-step explanation:

7 0

3 years ago