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levacccp [35]
2 years ago
7

How many calories will Jacob burn in 1 minute while roller-skating????fast plz

Mathematics
1 answer:
Marat540 [252]2 years ago
5 0

1 minute of P.E. usually burns 11 Kcals.

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Need help answering this question within the next 2 hours...Thanks!
just olya [345]
Subsitue a number for x then solve for y  then graph the point repeat untill u have a parabola
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3 years ago
Please provide steps. I have a test soon.
marishachu [46]

Answer:

B) 5x+15y=30

5x-5y=10

Step-by-step explanation:

First, we solve the top equations by addition.  Multiply the first one by -4.

-4x-12y=-24

4x-8y=4

This equals -20y=-20, so y=1.  Now we put that back into either equation and find that x=3.  So the solution set is (3,1)

Plugging those into each of the possible choices, we find that the answer is

B) 5x+15y=30.   5(3)+15(1)=30 15+15=30.   30=30 CHECK

5x-5y=10     5(3)-5(1)=10.  15-5=10.    10=10. CHECK

6 0
2 years ago
. Anna gets paid $8.75/hour working as a barista at Coffee Break. Her boss pays her
dedylja [7]

Explanation:

Anna gets paid $8.75/hour working as a barista.

She gets paid $9.00/hour for creating weekly advertisement signs.

In total she works 25 hours a week.

Let 'x' represent the number of hours that she works as a barista, then 25-x would represent the number of hours she works to create signs.

A. We need to write a function h(x) that represents the amount of money that Anna earns working as a barista.

Since she is earning $8.75 per hour and she works as a barista for 'x' hours a week so the function is:

h(x)=8.75\times x=8.75x

h(x)=8.75x

B. We need to write a function f(x) to represent the hours Anna works creating the signs.

Since, in total she works for 25 hours a week so the function to represent the number of hours she work to create signs can be given by:

f(x)=(25-x)

C. If 's' represents the number of hours that Anna works creating signs, we need to create a function g(s) that represents her earning creating signs.

So the number of hours Anna works creating signs for the coffee break is s, she gets paid $9.00 an hour for creating signs, so:

g(s)=9\times s=9s

g(s)=9s

D. We need to finf a composite function g(f(x)), to find the desired function we need to plug value of f(x) in the function g(s):

g(f(x))=9s=9(f(x))=9(25-x)=225-9x

g(f(x))=225-9x

The composite function g(f(x)) represents Anna's earnings while working just to create signs for the Coffee break.

E. To represent Anna's total earnings the functions that can be combined are h(x) and g(f(x)) because h(x) represents Anna's earnings while working as a barista and g(f(x)) represents Anna's earnings while she creates signs for the coffee break.

The function to represent Anna's total earnings can be given as:

T(x)=h(x)+g(f(x))=8.50x+225-9x

where we must keep in mind that 'x' represents the number of hours she spent working as a barista in a 'week'.

5 0
2 years ago
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I know how to find the distance of two coordinates but not three could someone help me on this??
Angelina_Jolie [31]
Find distance between R and S and then between S and T and add them together
4 0
2 years ago
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Find (fxg)(a)?thanks !!
Ghella [55]

Answer:

12a^2+13a+3

explanation:

multiply:

(3a+1)(4a+3)=(fxg)

12a^2+13a+3

5 0
2 years ago
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