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Hunter-Best [27]
3 years ago
9

You burn 20 calories per minute biking for x minutes and 10 calories per minute walking for y minutes. You can spend a total of

90 minutes biking and walking and burn 1300 calories.
A.)write a system of equations to determine how much time you spend on each exercise.

B.) how many minutes did you spend biking?
Mathematics
1 answer:
antoniya [11.8K]3 years ago
7 0
B. How many minutes did you spend biking
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Pls help me on this problem as soon as possible(if u don’t know pls do not answer
IgorC [24]
8 verticals i’m pretty sure if not uh yea
4 0
2 years ago
In a competitive examination negative marks of 2 are awarded for each wrong answers and 4 marks for every correct answer. If nee
Alex777 [14]

9514 1404 393

Answer:

  Rajan gets 6 marks more

Step-by-step explanation:

Neerav's marks are (15)(4) +(5)(-2) = 60 -10 = 50.

Rajan's marks are (14)(4) = 56.

Rajan gets 6 more marks than Neerav.

3 0
2 years ago
(z^2)^n=z^10<br><br>the question asks to solve for n
g100num [7]

To solve this problem, all you have to do is set the exponents equal to each other because the bases are the same.

2n=10

<em>*Divide both sides by 2*</em>

n=5


The answer is 5.


Hope this helps!

3 0
3 years ago
If f(x) = x2 + 4 and g(x) = <img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D" id="TexFormula1" title="\sqrt{x}" alt="\sqrt{x}" a
dangina [55]

Answer: 12

Step-by-step explanation:

6 0
2 years ago
What is 8 more than twice the sum of a number and 3 is the same as -6?
a_sh-v [17]
This can be solver by creating a small equation with x being the number and solving for x. The equation would be 8 + 2( x + 3 ) = -6
Solve for x:
8 + 2( x + 3 ) = -6
Distribute the 2
8+ (2x+6)=-6
Subtract 8
2x+6= -14
Add 6
2x= 8
Divide by 2
x=4

So the number you are looking for is 4

I hope this helps!
8 0
3 years ago
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