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qwelly [4]
2 years ago
8

Marcus needs to bike at least 80 miles this week for his training. If he has already biked 25 miles this week, then how many mil

es should he bike on each of the 5 remaining days this week ?
Mathematics
1 answer:
yulyashka [42]2 years ago
7 0

Answer:

11 miles each day

Step-by-step explanation:

Marcus needs 80 miles a week. Has already ridden 25 miles.

80-25 = 55.

Marcus has 55 miles left to ride for the week and has 5 days to do it in.

Assuming he rides the same amount each day:

55 / 5 = 11 miles biked each day.


Check our work

5 days riding 11 miles a day would be 55 miles.

25 miles are already completed.

55 + 25 = 80

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F(n)=45⋅(4/5)^n−1<br> complete the recursive formula of f(n)
Radda [10]

F(1) = 45

f(n) = f(n-1) * 4/5

Step-by-step explanation:

f(n) = 45 x (4/5)ⁿ⁻¹

f(1) = 45 x (4/5)¹⁻¹ = 45 x (4/5)⁰ = 45 x 1 = 45

f (n-1) = 45 x (4/5)ⁿ⁻¹⁻¹ = 45 x (4/5)ⁿ⁻²

f(n) = f(n-1) * (4/5)¹ = 45 x (4/5) ⁿ⁻²⁺¹ = 45 x (4/5)ⁿ⁻¹

7 0
2 years ago
6) If an even-degree polynomial function has a positive leading coefficient, which graph could
Ivahew [28]

Answer:

tt

Step-by-step explanation:

3 0
3 years ago
Y = 3 <br><br><br> X intercept : ________<br> Y intercept : ________<br> Slope: ________
erik [133]
Y = 3 will be a straight, horizontal line on 3. It will only touch the y-axis since there's no x. So, the X-Intercept doesn't exist, the Y-Intercept will be (0,3), and the slope of the line is 0.
8 0
3 years ago
he mean age of bus drivers in Chicago is greater than 54.4 years. If a hypothesis test is performed, how should you interpret a
Natalka [10]

Answer:

There is not sufficient evidence to support the claim μ > 54.4.

Step-by-step explanation:

1) Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

2) Solution to the problem

On this case we want to test is \mu>54.4 and the system of hypothesi on this case are:

Null Hypothesis: \mu \leq 54.4

Alternative hypothesis:\mu >54.4

On this case is our decision is FAILS to reject the null hypothesis then we can conclude that we don't have enough evidence to support the claim at the significance level provided.  So the correct conclusion would be:

There is not sufficient evidence to support the claim μ > 54.4.

8 0
3 years ago
What is -1/2(-4/5) multiplied then in simplest form?
olchik [2.2K]
-1/2(-4/5)

Multiply the numerators by each other and do the same for the denominators.
That is:
-1(-4)=4
And 2*5=10

Now we have 4/10
Divide the numerator and the denominator by 2 to get 2/5 which is the simplest form.

Hope this helped.
8 0
2 years ago
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