Answer: 2 numbers are 19 and 39
Step-by-step explanation:
<em>y = x + 20</em>
Equation: x + y + 20 = 78
⇔ x + y = 78 - 20
⇔ x + y = 58
⇔ y = 58 - x
So, we have:
x + 20 = 58 - x ( = y)
⇔ x + x = 58 - 20
⇔ 2x = 38
⇔ x = 19
⇒ y = x + 20 = 19 + 20 = 39
V = d/t
V = 160000/7200
V = 22.2 m/s
<span>Yes, it's true.
That is the definition of the radius: The segment that connects any point on the circle with the center of the circle</span>
3/4 x 144 = 108
108 x 5/9 = 60
B. 60 female students voted for you.
Answer:
1. y = 30x
2. y = x+5
3. y = 2x
4. y = x+2
Step-by-step explanation:
1. The speed of a car is x miles per hour. The total distance the car covers is 30 minutes is y
Total Distance = y
Time = 30 minutes
Speed = x
So, equation will be y =30x
2. Tina's age y is 5 years more than her brother Tim's age x.
Tim's age = x
Tina's age y= x+5
So, y = x+5
3. The cost to produce a table y is two times the cost to produce a chair,x
Cost of chair = x
Cost of table = y = 2x
So, y = 2x
4. The time required to bake a chocolate muffin, y is 2 minutes more than the time required to bake a vanilla muffin x
Time to bake vanilla muffin = x
Time to bake chocolate muffin= y= x+2
so, y = x+2