Answer:
II need help with something somewhat like this.
Step-by-step explanation:
Answer:
70 = 10x + 35 is your equation (10x + 35 is your expression).
3 1/2 hr is the time needed.
Step-by-step explanation:
Let hours = x.
You need 70 bookmarks, you have 35 (constant number), and you make 10 bookmarks an hour (varys).
Set the equation:
70 = 10x + 35
Solve for x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. First subtract, then divide.
Subtract 35 from both sides:
70 (-35) = 10x + 35 (-35)
70 - 35 = 10x
35 = 10x
Isolate the variable (x). Divide 10 from both sides:
(35)/10 = (10x)/10
x = 35/10
x = 3.5
3 1/2 hours is your answer.
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Answer: 150°
Step-by-step explanation:
30+30+30+30+30=5×30
Area larger circle: 3.14 x 5.25^2 = 86.55
area of smaller circle: 3.14 x 2.25^2 = 15.90
86.55 - 15.90 = 70.65 ( round answer as needed)
Not sure why, but I wasn't able to post my solution as text, so I've written it elsewhere and am posting screenshots of it here.
In the fifth attachment, the first solution is shown above the second one.
