Answer:
The man is 27 years old.
Step-by-step explanation:
You can create a system of equations.
Let x = the age of the man
Let y = the age of his son
You can create the following equations based on what was given in the problem:
1. x = y + 18
2. (x - 3) = 4(y - 3)
You can simplify the second equation:
x - 3 = 4y - 12
x = 4y - 9
Then, solve the system of equations:
x = y + 18
-
x = 4y - 9
____________
0 = -3x + 27
The son's age is 9, therefore the father is 27 years old.
Complementary angles add together to equal 90 degrees.
R = 90 - 33.8
R = 56.2 degrees.
F, D, C
F: 5 x 3 = 15
D: 7 x 3= 21 - 2 = 19
C: 5 x 3 = 15 + 6 = 21
Answer:
area: 136 cm
perimeter: 48 cm
Step-by-step explanation:
For the first one just subtract
for the second one you just have to break it into smaller, more digestible pieces (work below)
If you would like to know the equation that shows the number of teaspoons of sugar needed to make x candy bars, you can calculate this using the following steps:
2.5 teaspoons of sugar ... 1 candy bar
y teaspoons of sugar = ? ... x candy bars = ?
2.5 * x = 1 * y
2.5 * x = y
y = 2.5 * x
The correct result would be <span>y = 2.5 * x.</span>
