If you need an estimate for #5, then you can round each value to the nearest whole number to have...
- 21.6 turn into 21
- 20.9 turn into 21
- 19.4 turn into 19
- 18.5 turn into 19
Add up those values: 21+21+19+19 = 80
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Another estimate you could do is to round everything to 20, since we're close to this value. Having four copies of 20 added leads to 20+20+20+20 = 80
So they rode a total estimated amount of 80 miles
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The actual total is: 21.6+20.9+19.4+18.5 = 80.4 miles, which isn't too far off from 80.
Answer:
8
Step-by-step explanation
First you have to plug in 3 for x:
5(3-1)-2
Then using PEMDAS you would simplify that:
5(2)-2
10-2
8
The slope intercept form of a line is given by:
![\begin{gathered} y=mx+b \\ \text{where:} \\ m=\text{slope} \\ b=y-\text{intercept} \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20y%3Dmx%2Bb%20%5C%5C%20%5Ctext%7Bwhere%3A%7D%20%5C%5C%20m%3D%5Ctext%7Bslope%7D%20%5C%5C%20b%3Dy-%5Ctext%7Bintercept%7D%20%5Cend%7Bgathered%7D)
rewrite the equation in its slope intercept form:
![\begin{gathered} x+1=-y \\ \text{ Multiply both sides by -1:} \\ -1(x+1)=-1(-y) \\ y=-x-1 \\ m=-1 \\ b=-1 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20x%2B1%3D-y%20%5C%5C%20%5Ctext%7B%20Multiply%20both%20sides%20by%20-1%3A%7D%20%5C%5C%20-1%28x%2B1%29%3D-1%28-y%29%20%5C%5C%20y%3D-x-1%20%5C%5C%20m%3D-1%20%5C%5C%20b%3D-1%20%5Cend%7Bgathered%7D)
Therefore, the slope is -1
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using the above procedure:
Answer:
Yes
Step-by-step explanation:
Since Jenny makes a profit of $2 for each bar of chocolate that she sells, if she sells a total of 500 chocolate bars, her profit would be:
Profit for 500 chocolate bars = profit for each chocolate bar * 500 bars
Profit for 500 chocolate bars = $2 per bar * 500 bars
Profit for 500 chocolate bars = $1000
Also she want to buy a laptop worth $998. This would be possible after selling 500 bars because $1000 > $998. After buying the laptop she would have $2 remaining ($1000 - $998)