first you should go left to right when solving these equations:
5/12 ∙ 1/5
= 5/60
Then you multiply 5/60 and 8
5/60 ∙ 8/1 (8/1 is still a whole number. It makes it easier to multiply)
= 40/60 = 2/3
So, the answer is 2/3.
Answer:
6.5
Step-by-step explanation:
9x=58.50
This equation is telling us that she bought 9 tickets at x cost each and the total was 58.50
Simplify the equation to solve for x. Divide by 9 on both sides.
⁹ˣ/₉ = ⁵⁸·⁵⁰/⁹
x=6.5
Answer:
Choice 3. -4x-3<13
Step-by-step explanation:
First, you will use process of elimination and cross out any obvious wrong answers. You can see that the symbol would not be flipped yet so the "<" would be pointing to less than. That eliminates choice 1 and 4. Now, You can observe the 3rd step and see that -4x<16, to get that, you would need a "-4x" in the equation. Number 2 is 2x so that can't be right. Therefore, the answer is choice 3. This simple process of elimination and looking for clues will help you greatly in multiple choice problems instead of solving it the hard way.
<h3>
Answer: Choice B) 122%</h3>
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Work Shown:
A = 1250 is the initial amount
B = 2780 is the new amount
C = percent change = unknown for now
The formula to use is
C = [ (B-A)/A ] * 100
to calculate the percent change.
Basically we calculate the change (B-A) first and then divide that over the original amount A to compute the decimal form of the answer, which is then converted over to percentage form. The "100" tacked on at the end is what converts from decimal to percent form.
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C = [ (B-A)/A ] * 100
C = [ (2780 - 1250)/1250 ] * 100
C = (1530/1250)*100
C = 1.224 * 100
C = 122.4%
C = 122%
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The positive C value indicates we have a percent increase. If C were negative, then we'd have a percent decrease.
Answer:
24
Step-by-step explanation:
I think there the same for each but I hope I helped