Answer:
in 7 days level of water changed in lake= -28
the water level change each day= -28/7= -4cm
Step-by-step explanation:
Answer:
X = -y -3
X= -2y + 3 (if correct, please mark brainliest. :))
Step-by-step explanation:
The cost for each pound of trail mix and each pound of jelly is given below.
Step-by-step explanation:
Let t = cost/pound of trail mix
Let j = cost/pound of jelly beans
5t + 6j = 35
3t + 2j = 15 = > 2j = 15 - 3t
5t + 3(15 - 3t) = 35
5t + 45 - 9t = 35
- 4t + 45 = 35
- 4t = - 10
4t = 10
t = 2.5
3(2.5) + 2j = 15
7.5 + 2j = 15
2j = 7.5
j = 3.75
Answer:
1.14 miles
Step-by-step explanation:
We have been given that a car rental rents a compact car at a daily rate of $25.20 plus 20c. Mike can afford to spend $48 on the car rental for one day.
To find number of miles, Mike can drive spending $48, we will equate 48 by given expression and solve for c.
Therefore, Mike can drive 1.14 miles and stay within his budget.
Answer:
None
Step-by-step explanation:
The discriminant of a quadratic equation is . In this case, that is:
Since the discriminant is negative, the square root will be a complex number, and this equation must have no real solutions. Hope this helps!