2/3km........2/3 h
x km............1 h
x=2/(2/3)=6 km/h
Answer:
The number of miles Jill ran is the number of miles Sue ran (11) minus the number of miles Sue ran more than Jill (7).
So far, x=11-7.
Reorder the equation. Add 7 to both sides.
x + 7 = 11.
So, the correct equation is A.
:)
For this case, the first thing we should do is observe that we have a linear equation.
Therefore, we have a sequence of the form:
Where, k: is the slope of the line.
We have then:
Substituting we have:
Answer:
An explicit formula for the sequence of the number of bacterium is:
an = 21 * n
option 1
Answer:
A
Step-by-step explanation:
because if you are rounding to the nearest integer that means that -23.514 would be -24 and -3.98 would be -4 and negative divided by a negative is a positive
<h3>
Answer: 70 dollars per TV</h3>
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Explanation:
I'm assuming that each TV he sells has an extended warranty.
If he sells 14 such TVs, then he earns 20*14 = 280 dollars from the warranties alone. We're told he earns a total of $1260. This means that 1260-280 = 980 dollars was earned from the fixed amount he gets per TV.
Divide this over 14 to get 980/14 = 70
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Here's an algebraic way to approach this
x = fixed amount he gets per TV
x+20 = fixed amount plus the extra $20 to get the warranty
14(x+20) = total amount he gets
14(x+20) = 1260
To solve for x, we could take two paths. One path is to divide both sides by 14 and subtract 20 from both sides later
So we would do:
14(x+20) = 1260
x+20 = 1260/14
x+20 = 90
x = 90-20
x = 70
Or we could distribute first, then subtract 280 from both sides, and divide both sides by 14. This basically follows the path described in the first section at the top.
14(x+20) = 1260
14x+14*20 = 1260
14x+280 = 1260
14x = 1260-280
14x = 980
x = 980/14
x = 70
Either way, we end up with 70 dollars as the answer
