12. Make equation and plug in
13. Proportion
14. Finding a constant rate, and then manipulate
12. Where x is miles driven, and y is answer, and z is days
19.95z+0.15x=y
Plug in two values
19.95 x 2 + 0.15 x 250 = y
39.93+37.5 = y
y=77.43
13. 5:2 as 175:x
5/2 = 175/x
x = 70
70+175=245
14. 260:5 = x:1
260/5=x/1
x = 52
52:1 = y:9
52/1 = y/9
y = 468
I hope you understand the process.
Answer: 9
Step-by-step explanation: 9 x 9 equals 81 and 81 add 9 is 90
30, radius is equal to half the diameter, so to get diameter from the radius, multiply the radius by two.
Given:
Triangles ABC and DEF are similar triangles.
AB = 6 m, BC = 16 m, CA = 15 m, DE = x, EF = 32 m, FD = y
To find:
The values of unknown sides, i.e., x and y.
Solution:
We know that the corresponding parts of similar triangles are proportional and triangles ABC and DEF are similar triangles, so
Now,
Similarly,
Therefore, the measure of unknown sides are x = 12 m and y = 30 m.
Answer:
y = - 2x - 1
Step-by-step explanation:
Assuming the line has equation y = - 2x + 3
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = - 2x + 3 ← is in slope- intercept form
with slope m = - 2
Parallel lines have equal slopes, thus
y = - 2x + c ← is the partial equation
Note the line passes through (0, - 1) ⇒ c = - 1
y = - 2x - 1 ← equation of parallel line
