Answer:
47 degrees
Step-by-step explanation:
The two angles shown are "vertical angles" and thus are equal.
Thus, 2x + 3 = x + 50
Combining like terms, we get:
x = 47 degrees
Answer:
Equation: y = 15.5x
Step-by-step explanation:
Given that:
Time earns $31 for 2 hours
$46.5 for 3 hours
$62 for 4 hours
We will find unit rate first.
Unit rate = = $15.5 per hour
Now,
Let,
x be the number of hours
y be the total money earned by Tim
Total earning = Per hour rate * Number of hours
y = 15.5x
Hence,
Equation: y = 15.5x
Answer:An acute angle is a type of angle that measures less than 90°. For example, when the time is 11 o'clock, the angle formed between the hour hand and the minute hand is an acute angle. In other words, 30°, 40°, 57°, and so on are all acute angles.
Step-by-step explanation:
Answer:
x = - 3, y = ± 4
Step-by-step explanation:
Add corresponding elements and equate to corresponding element on right side, that is
x + 4 - 9x = 28
- 8x + 4 = 28 ( subtract 4 from both sides )
- 8x = 24 ( divide both sides by - 8 )
x = - 3
----------------------------------------------------
y² + 1 - 17 = 0
y² - 16 = 0 ( add 16 to both sides )
y² = 16 ( take the square root of both sides )
y = ± = ± 4