1200 squares because, 3 m = 300 cm and a square has 4 sides so you times 3 and 4 and you get 12 so 12 m = 1200 cm
4 unknowns needs 4 equations. I'll call the unknown numbers a,b,c,d in that order left to right.
4 + a = b
a + b = c
b + c = d
c + d = 67
let's use substitution to get rid to combine equations and get rid of variables.
If a + b = c then a = c - b
4 + (c - b) = b
4 + c = 2b
If b + c = d then b = d - c
4 + c = 2(d - c)
4 + c = 2d - 2c
4 + 3c = 2d
then we have c + d = 67 so c = 67 - d
4 + 3(67 - d) = 2d
4 + 201 - 3d = 2d
205 = 5d
d = 41
Should be easy now, subtract backwards.
67 - 41 = 26
41 - 26 = 15
26 - 15 = 11
15 - 11 = 4
4, 11, 15, 26, 41, 67
Answer:
-25+17k
Step-by-step explanation:
Distribute:
-5(1-5k)-4(2k+5)
-5+25k-8k-20
Combine like terms:
-25+17k
Hope this helps, please mark brainliest :)
Answer:
y= 0.05x + 50
Step-by-step explanation:
Slope intercept form: y= mx + b
The total monthly cost of the telephone plan is $50 plus a charge of $0.05 per minute.
The charge is <em>dependent</em> on the minutes used.
Whenever we see <em>per</em>, we automatically have our slope.
Slope: 0.05
And since 50 is the <em>independent</em> variable, 50 is our y-intercept.
y= 0.05x + 50