Answer:
14 miles per hour
Step-by-step explanation:
Convert 270 minutes to hours first= 4.5hrs
Then divide 63 by 4.5= 14
Answer:
2/9 is less than 1/3
Step-by-step explanation:
2/9= 0.222
1/3=0.333
Let's solve your system by substitution.
2x−2y=−4;2x+y=11
Rewrite equations:
2x+y=11;2x−2y=−4
Step: Solve2x+y=11for y:
2x+y=11
2x+y+−2x=11+−2x(Add -2x to both sides)
y=−2x+11
Step: Substitute−2x+11foryin2x−2y=−4:
2x−2y=−4
2x−2(−2x+11)=−4
6x−22=−4(Simplify both sides of the equation)
6x−22+22=−4+22(Add 22 to both sides)
6x=18
6x/6 = 18/6
(Divide both sides by 6)
x=3
Step: Substitute3forxiny=−2x+11:
y=−2x+11
y=(−2)(3)+11
y=5(Simplify both sides of the equation)
Answer:
x=3 and y=5
FALSE
metric system is known as the SI or sytem international system
it is used everywhere except for those few who cling to the english system (USA and UK)
