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Hunter-Best [27]
2 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]2 years ago
7 0
B. How many minutes did you spend biking
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A3 + 3a2b - 4ab - 11b + 7?
Thepotemich [5.8K]
Hello!

Are you looking for how many "Terms" there are?

If so, then there would be: 5 terms, which are:

a³
3a²b
-4ab
-11b
7

I Hope my answer has come to your Help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead! :)
8 0
2 years ago
Can someone please help me with this?? I would love the help!!
iris [78.8K]
Just write I have my own problems to deal with.
7 0
2 years ago
Approximately how much principal would need to be placed into an account earning 1.58% interest compounded monthly so that it ha
Natalija [7]

Answer:

The initial investment is $821.58

Step-by-step explanation:

Giving the following information:

Future Value (FV)= $90,597

Number of periods (n)= 25*12= 300

Interest rate (i)= 1.58% = 0.0158

<u>To calculate the initial investment, we need to use the following present value (PV) formula:</u>

PV= FV/(1+i)^n

PV= 90,597 / (1.0158^300)

PV= $821.58

The initial investment is $821.58

5 0
3 years ago
How do you divide decimals?
olga55 [171]
It's the same as normal division. All you need to do is add the decimal in. Let me show you:

2.5/2
2/2 What's 2 divided by 2? It's <em><u>1</u></em><em><u>.</u></em>
.5/2 What's 5 divided by 2? <u>2.5</u>, right? But since it's .5 (not 5) divided by 2, the decimal goes somewhere else.<em> Since the 5 comes just to the right of the decimal, so will the <u>25</u>. You have </em><em><u>.25</u></em><u>.</u>

<em><u>1 + .25 = 1.25</u><u /></em>. And that's the answer! 2.5/2=1.25. See how I broke it up into pieces? It makes life easier. 
<em>
</em><em>Don't forget to rate this answer the Brainliest!</em>





6 0
3 years ago
Fill in the blanks in the following proof.
NARA [144]

Answer:

Table :

     Statements                 Reasons

1)ΔEGC≅ΔEGB                 Given

2)EB = EC                          Corresponding Parts of Congruent

                                          Triangles are Congruent

3) BC = BE                         Given

4) By 2 and 3                      EB≅EC≅BC

5)∠BEC = 60°                     ΔBEC is an equilateral triangle

Step-by-step explanation:

We are given that BE = BC  ---1

We are also given that ΔEGC≅ΔEGB

So, BE = CE(Corresponding Parts of Congruent Triangles are Congruent) ---2

Now By 1 and 2

BE=BC=CE

In ΔBEC

BE=BC=CE

Since all sides are equal . So, it is an equilateral triangle

All angles of equilateral triangle are also equal i.e. 60°

So, ∠BEC = 60°

Hence proved

Table :

     Statements                 Reasons

1)ΔEGC≅ΔEGB                 Given

2)EB = EC                          Corresponding Parts of Congruent

                                          Triangles are Congruent

3) BC = BE                         Given

4) By 2 and 3                      EB≅EC≅BC

5)∠BEC = 60°                     ΔBEC is an equilateral triangle

7 0
3 years ago
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