Answer:
12x +54
Step-by-step explanation:
3x + 9(X+6) =
Distribute
3x+9x +54
12x +54
A=-.25+6.7t, s=.75+4.5t when Amir catches up a=s so:
-.25+6.7t=.75+4.5t add .25 to both sides
6.7t=1+4.5t subtract 4.5t from both sides
2.2t=1 divide both sides by 2.2
t=10/22 hr
t≈0.45 hr (to nearest hundredth)
Answer:
The circumference of the cookie is 37.68 inches.
Step-by-step explanation:
We have,
The area of a cookie is 113.04 square inches.
It is circular in shape. The area of circle is given by :
r is radius of circle
The circumference of circular shaped object is given by :
So, the circumference of the cookie is 37.68 inches.
Answer:
x = 2, y = -1.
Step-by-step explanation:
2x - 5y = 9
3x + 4y = 2
Multiply first equation by -3 and the second by 2:
-6x + 15y = -27
6x + 8y = 4 Adding the 2 equations:
23y = -23
y = -1.
Now substitute this value for y in the first equation:
2x - 5(-1) = 9
2x = 9 +5(-1)
2x = 9 - 5
2x = 4
x = 2.
Answer:
Step-by-step explanation:
4/3 = t/7
Multiply by 7 on both sides
4/3 x 7 = t
28/3 = t
