Answer:
x = r(t + s) (second option)
Step-by-step explanation:
First add s to both sides and get x/r = t + s.
Then mutiply both sides by r to separate x and this is the final equation:
x = r(t + s)
Answer:
Step-by-step explanation:
and 
and we are told that C is 6cm longer than A. That means that C = A + 6.
We are going to cross multiply each one of those ratios. The first one gives us
4A = 3B and the second one gives us
9B = 8C. But since C = A + 6, then
9B = 8(A + 6) and
9B = 8A + 48 and
Now we will solve the first equation above for A:
If 4A = 3B, then
and will use that as a sub for A in the second equation:
and
9B = 6B + 48 and
3B = 48 so
B = 16.
Now that we know B, we can use it to solve for A:
4A = 3(16) and
4A = 48 so
A = 12.
Then we can use that all the way back in the expression we set up for C:
C = A + 6 so
C = 12 + 6 so
C = 18
12 + 16 + 18 is the length of the string: 46cm
Answer:
Each person would pay $15.71
Step-by-step explanation:
First we can calculate how much everyone ate by multiplying the bill amount by 120% (20% tip and 100% of the bill).
$52.35 * 120% = $62.82
Now to find out how much each pays, we have to divide that cost by the number of people (4).
$62.82/4 = $15.71
Answer:
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Step-by-step explanation:
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