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vlabodo [156]
3 years ago
7

Johnathan can jog 3 2/5 miles in 7/8 hour. Found his average speed in miles per hour

Mathematics
2 answers:
Mama L [17]3 years ago
4 0
(3 2/5 miles)/ (7/8 hour)= 3 31/35 miles/hour.

His average speed is 3 31/35 miles/hour~
choli [55]3 years ago
3 0
3 2/5 = 17 / 5 ;
(17/5) ÷ (7/8) = (17/5) × (8/7) = 136/35 = 3.88 miles per hour ;
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How to solve this. I am very confused.
sergiy2304 [10]

To solve, we will need to plug in -5 for x in both instances.

|-5 + 2| / -5 + 2

|-3| / -3

Now, these absolute value bars may be a bit puzzling. What we have to do is take the absolute value of the number inside of the brackets. Meaning, that if the number is negative, we make it positive, and if the number is positive, then it stays positive.

3 / -3

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Hope this helps!! :)

6 0
2 years ago
Read 2 more answers
Jim is 3 times as old as his cousin Anthony the difference in their age is 18.How old is Jim?
IgorC [24]
Let's create expressions and equations to model this situation. Let Anthony's age be a.

"Jim is 3 times as old as his cousin, Anthony." Jim's age is 3a.
"The difference in their age is 18." 3a - a = 18

How old is Jim?

Let's solve the above equation for a to first find Anthony's age.

    3a - a = 18
    2a = 18
    a = 9

Remember, Jim's age is represented by the expression 3a. Substitute Anthony's age, 9, into the expression to find Jim's age.

    3a
    3(9)
    27

Answer:
Jim is 27 years old.
6 0
2 years ago
Solve for F: 5/9 (F-32)
konstantin123 [22]
The answer is -31 2/5<span />
8 0
3 years ago
g Z-Test for Population Means Calculate z-statistic of a population mean. Keith sampled 10 private universities in Colorado and
scoray [572]

Answer: 2.46

Step-by-step explanation:

Formula for x-score is given by :-

Z=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}

, where \overline{x} = Sample mean , \mu= population mean, \sigma = population standard deviation, n= sample size.

As per given , n=10

\mu= $29,056

\sigma = $3,339

\overline{x} =  $31,650

Then,

z=\dfrac{ 31650-29056}{\dfrac{3339}{\sqrt{10}}}\\\\=\dfrac{2594}{\dfrac{3339}{3.16227766017}}\\\\=\dfrac{2594}{1055.88451073}=2.45670807142\approx 2.46

Hence, the z-score = 2.46

4 0
3 years ago
Write 3 decimals less than 0.85
-Dominant- [34]

Hello!

Three decimals less then 0.85 are:

1) 0.4

2) 0.5

3) 0.6

I hope it helps!

8 0
3 years ago
Read 2 more answers
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