Remark
If the lines are parallel then triangle RQS will be similar to triangle RTP
From that, all three lines in one triangle will bear the same ratio to all three lines of the second triangle.
Givens
PQ = 8
QR = 5
RS = 15
ST = x + 3
Ratio
QR/RP = RS/RT
Sub and solve
RP = 5 + 8
RP = 13
RT = 15 + x + 3
RT = 18 + x
5/13 = 15 / (18 + x) Cross multiply
5(18 + x) = 195 Remove the brackets on the left.
90 + 5x = 195 Subtract 90 from both sides.
5x = 105 Divide by 5
x = 105/5
x = 21 Answer <<<<<<<
Answer: 1/3
Step-by-step explanation:
5/15 divided both by 5 is 1/3
Answer:
141x
Step-by-step explanation:
I just did PEMDAS
3x^2-33x-180
multiplied 3x^2 and got 6x
Subbed 180 by 33 and got 147x
then I subbed 147x by 66x and got 141x
Answer:
free points cuz this was five days ago!! LETS GOOOOOO
Step-by-step explanation:
So for this, you will be dividing 9.3/3.1 and 10^34/10^17 separately.
Starting with 9.3/3.1, that equals 3
Now with 10^34/10^17, remember that the rule with dividing exponents with the same base is that you are just subtracting the exponents. In this case: 10^(34 - 17) = 10^17
Now we put the two quantities together, and your answer will be 3 x 10^17, or the second option.
