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bija089 [108]
3 years ago
13

Shelly spent 10 mintues jogging and 20 mintues cycling and burned 300 calories. The next day, shelly swapped times and did 20 mi

ntues of jogging and 10 mintues of cycling, burned the same number of calories .How many calories were burned for each mintue of jogging and how many for each mintues of cycling?​
Mathematics
1 answer:
ratelena [41]3 years ago
6 0
She burned 30 calories for each minute of jogging and 15 calories for each minute of cycling because 300 divided by 10 is 30 and 300 divided by 20 is 15
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Answer:

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Step-by-step explanation:

First, you have to turn 40 into a decimal - .40.

Then you multiply 30*.40 and get 12.

Subtract 12 from 30 since you are saving 12 dollars.

This means you spend $18 and saved $12.

So, your final answer would be $12.

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5 0
3 years ago
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antiseptic1488 [7]

Answer:

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Step-by-step explanation:

1. Descarte's rule of signs tells you there are 0 positive real roots and 0 or 2 negative real roots. (for positive x, signs are ++++ so have no changes; for negative x, signs are ++-+, so have 2 changes.) A graph shows no real roots.

2. There are 3 sign changes in the given polynomial, so 3 or 1 positive real roots. When the sign of x is changed, there are 2 sign changes, so 0 or 2 negative real roots. A graph shows 2 negative and one positive real root (for a total of 3), so the remaining 2 roots are complex.

5 0
3 years ago
Solve for x<br>3x/2 - 2 &gt; 7​
tiny-mole [99]

Answer:

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Step-by-step explanation:

answer is above

3 0
3 years ago
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sukhopar [10]
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6 0
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MissTica

Answer:

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Step-by-step explanation:

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The leading coefficient is 2; the degree is 7.

__

<em>Additional comment</em>

When a term has more than one variable, its degree is the sum of the exponents of the variables. The term xy, for example, is degree 2.

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