Answer:
no solution
Step-by-step explanation:
We can set up this problem as an equation in order to determine the unknown number. Thus, x/4 - 7 = 7. Here, 7 less than one-fourth of the unknown number (x) is equal to 7. Add 7 to the other side, and you are left with x/4 = 14. Multiply both sides by 4 in order to eliminate the denominator of the fraction. Now, we are left with x = 56. When we put it all together, 1/4 of 56 = 14. And 7 less than 14 is 7. Hope this helps!
to find the radius of x^2+y^2-10x+6y+18=0, we must complete the square:
x^2 - 10x + y^2 + 6y = -18
Then:
x^2 - 10x + 5^2 - 5^2 + y^2 + 6y + 9 - 9 = -18
Collecting all three constants on the right-hand side, r^2 = -18 + 25 + 9 = 16
Then r = +sqrt(16) = +4 (answer)
Answer: A
Step-by-step explanation:
(3,3) (6,5)
y2-y1/x2-x1 = 5-3/6-3 = 2/3
y-y1 = m(x-x1)
y-3 = 2/3(x-3)
Answer:
39 dimes
Explanation:
From the graph:
• Total number of nickels = 9+4+7=20
,
• Total number of dimes = 7+10+9 = 26
The ratio of total nickels to total dimes = 20:26
If the total number of nickels the students donate is increased to 30, we have:

We then solve for x:

The number of dimes they should donate to keep the ratio of total nickels to total dimes the same is 39.