The answer is 2 hours and 55 minutes. This is because 90 + 85 = 175.
2 hours is equal to 120 minutes thus needing 55 minutes to equal the 175 minutes total.
Answer:
Dividing by 4 and -4
Step-by-step explanation:
Solving 4x < -16 is different from solving -4x< 16, because for 4x < -16, you are dividing by a positive 4 on both sides, but for -4x< 16, you are dividing by -4 on both sides.
Answer:
In 517 ways
Step-by-step explanation:
There are total 6 people in ballot and voters can vote for any 4 we have following choices
Voter may not vote for anyone then
Since, and
Here, n=6 and r=0 we will get
Voter may not vote for one of them then
Voter may not vote for two of them then
Voter may not vote for three of them then
Voter may not vote for four of them then
Total ways in which a person can vote is
+ + + +
Substituting the values we will get
[tex]1+6+30+120+360=517[/text] ways.
Equation A : x + z = 6
Equation B : 2x + 3z = 1
Possible step used in eliminating in z-term.
Multiply equation A by -3.
-3(x +z) = -3(6)
-3x - 3z = -18
-3x - 3z = -18
<u>2x + 3z = 1</u>
-x = -17
<u>÷ -1 ÷ -1
</u>x = 17