Answer:
y=3x+8
Step-by-step explanation:
120 - 22 = 98. 98 / 15 = 6.533333. Because you want the minimum, and he can't get paid during 0.53333 of a week, Tom must walk the dog for a minimum of 7 weeks.
Answer:
The volume of the solution with 20% acid is 27 gallons and the one with 10% acid is 18 gallons
Step-by-step explanation:
Myra needs to mix "x" gallons of the solution with 20% and "y" gallons of the solution with 10%. The volume of the final solution must be 45 gallons, therefore:
x + y = 45
The concentration of acid of the final solution is:
0.2*x + 0.1*y = 45*0.16
0.2*x + 0.1*y = 7.2
Therefore we have a system of equation:
x + y = 45
0.2*x + 0.1*y = 7.2
We need to multiply the first equation by -0.1:
-0.1*x -0.1*y = -4.5
0.2*x + 0.1*y = 7.2
We now sum both equation:
0.1*x = 2.7
x = 2.7/0.1 = 27 gallons
y = 45 - 27 = 18 gallons
Answer:
At a glass vase factory, 3 out of the last 15 vases produced were chipped.
We can find the probability by using
P(E)= Total number of outcome in E/ Total number of outcome in the sample space.
The event of getting 3 vases is E = 3 vase
The sample space is given by S = {1,2,3,4…….,13,14,15}
The no. of possible outcome in the Event E is 3 vases and the no. of possible outcome in Space S is 15.
Probability of getting 3 vase is
P(3) =3/15 which is 1/5.
please give brainliest.
