Last one on the right bottom corner. {12,14,24}
We need first consider what data we have available:
a = run 1.5km
b = then run 2.3km
c = walk 475m
x = a + b + c = how many km he done on treadmill
before we go anywhere, we need to unify the units, we need to change meters to fraction of kilometers, kilo meant 1000, therefore:
1km = 1000m
475m / 1000m = 0.475km
now we can substitute:
x = a + b + c = 1.5km + 2.3km + 0.475km = 4.275km
we can round that up to first decimal point and then:
4.275km = 4.3km
answer is then:
jack done on the treadmill 4.275km or rounded up 4.3km
Answer:
2nd choice: x=4 and x=-4
Step-by-step explanation:
x^2 - 16 = 0 can be simplified to (x-4)(x+4)=0
x-4 = 0 so x = 4
and x + 4 = 0 so x = -4
4^2+4×11
16+44
60 is the answer to the question
The correct answer is (4, 90)
