A ruler because it gies you the exact measurement in inches, or centimeters and you can always multiply to find out how many feet something is.
1foot/12inches, the targeted unit on the top, the to-be-converted unit on the bottom
We can find out how much larger something in scientific notation is compared to something else in scientific notation is by dividing the 10 to the power of x of the respective quantities and then dividing the numbers in front of that value (in this case 7 and 13). After we have both of those quotients, we can multiply them to find the answer. 7/13 is approximately 1/2, and 10^10 / 10^8 is 100. 0.5 * 100 is 50, meaning that the answer is approximately 50.
Answer:
- a) j+c=310; j-c=40
- b) (j, c) = (175, 135)
- see attached
- Jose earned $175; Camden earned $135
Step-by-step explanation:
Let j and c represent Jose's and Camden's earnings, respectively.
(a) One equation can be written for the total; another for the difference:
j + c = 310 . . . . their total earnings
j - c = 40 . . . . . the difference in their earnings
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(b) It is convenient to add these two equations to eliminate c:
(j +c) +(j -c) = (310) +(40)
2j = 350
j = 175
Then c can be found as ...
c = j -40 = 175 -40 = 135
The solution is (j, c) = (175, 135).
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(c) Using x for j, and y for c, we can use Desmos to graph the equations. The result is attached.
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(d) Jose earned $175 over the summer; Camden earned $135.
This is not something we can really help you with, you'll have to do on your own paper. Just get a ruler and draw 8 different lines that measure 1-3 inches.