Answer:
First number: 71/7
Second number: 135/7
Third number: 270/7
Step-by-step explanation:
First number = x
Second number= 2x-1
Third number= 2(2x-1)
x+(2x-1)+2(2x-1)= 68
3x-1+4x-2=68
7x-3=68
7x=71
x=71/7
You can check by plugging in the x into the equation.
Answer:
of iv
+
2
(
4
−
)
=
2
+
6
−
3
x+2({\color{#c92786}{4-x}})=2x+6-3x
x+2(4−x)=2x+6−3x
+
2
(
−
+
4
)
=
2
+
6
−
3
Step-by-step explanation:
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There are 14 times in the table. Add up all 14 times, and divide the sum by 14. The result is the "mean 100-meter sprint time," assuming that you've rounded this off to the nearest tenth of a second.
Answer:
Well well well.
Step-by-step explanation:
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