Answer:
x= 3/2
Step-by-step explanation:
4x+17-17 = 23-17
4x = 6
4x/4 6/4
4x/4 = 6/4
x = 6/4 (Simplify)
x = 3/2
Answer:
151 * 17 * 3^4 * 2
Step-by-step explanation:
2567 | 17
151 | 151
1
162 | 2
81 | 3
27 | 3
9 | 3
3 | 3
1
firat we need to get two equation with two varibles let us work on x,y
so adding the first and last one will yield
now we since we used the first and third we need to use the second to get a correct system.let us multiply the third by 2 then add the second and third
now we have two equation with the variables x and y
you can solve it algebraically but you can see that the only solution possible is y=0 and x=-1 we have the values for x and y let us choose one of the three main equation and substitute to get z let us pick the first equation 5x-2y+z=-1-->5(-1)-2(0)+z=-1---->-5+z=-1-------->z=4
to make sure the system works let us check by substituting into the three equations
the first one will be 5x-2y+z=-1--->5(-1)-2(0)+4=-1---->-5+4=-1--->-1=-1 first equation holds
the second equation 3x+y+2z=6---->2(-1)+0+2(4)=6--->-2+8=-6--->-6=-6 second equation holds
the third equation x-3y-z=-5----->-1-3(0)-4=-5---->-1-4=-5--->-5=-5
our third equation also holds which makes our solution correct
x=-1,y=0,z=4
Question A) First, 5 cubed is 75. 5 to the power of -4 is 0.0016. The answer is 0.12.
Question B) The answer is 177147.
Question C) The answer is 0.000977.
Question D) The answer is 0.020408
If these are wrong, I'm so sorry, but this was a bit confusing. Just know you're a smart kid and you can do this!
Answer:
10 km in 97 seconds, 8 km in 83 seconds, 18 km in 198 seconds, 15 km in 168 seconds.
Step-by-step explanation:
The unit rate for each session can be found by dividing the kilometers by the seconds. Then, make an equivalent fraction by dividing both the numerator and denominator by the numerator. This will show how many seconds it took to finish 1 kilometer during that session.