127.75
130+110+121+141+137+136 /6
=10228/6
=127.75
Answer:
x = -7
Step-by-step explanation:
7x-3 - 2x = -38
7x -2x = -38+3
5x = -35
x = -35/5
x = -7
Answer:
3 quarts
Step-by-step explanation:
First, find how many quarts of antifreeze is in the mixture.
0.4 x 6 = 2.4
Now, make it into a fraction by putting the antifreeze amount over the rest so:
2.4/6
Now add + a at the end of the numerator and bottom to make:
2.4 + a/ 6 + a.
Now, turn the percentage you want to strengthen or weaken the mixture into a percentage. So, 3/5.
Now, make it an expression by adding = 3/5 at the end of the equation.
2.4 + a/ 6 + a = 3/5
Now, use cross multiplication.
12 + 5a = 18 + 3a
Now, solve the equation.
12 + 5a = 18 + 3a
-3a. -3a
12 + 2a = 18
-12. -12
2a = 6
/2. /2
a = 3.
Therefore, the answer is 3 quarts.
Okay so f(n) is the range and n is the domain. The graph should be inclined up crossing (0,0). The domin is (0, infinity) because is she woulds 0 hours then Julia will get paid $0 so it starts at 0 and goes to inifinity.
