Answer:
102.3 kilometers per hour
Step-by-step explanation:
A car travel the distance of D equals 450 km for T equals 4.4 hours at a constant rate. What is the speed of the car in kilometers per hour
The formula to calculate Speed = Distance (Kilometers)/ Time(hours)
The speed of the car = 450km/4.4 hours
102.27272727 kilometers per hour
Approximately = 102.3 kilometers per hour
Answer:
Step-by-step explanation:
To write the equation of a circle, use the formula 
where the center of the circle is (h, k).
This means the equation is 
.
Find the radius r by dividing the diameter of 10 in 2. The radius is 5.
So the equation of the circle is
Answer: 15
Step-by-step explanation: To evaluate an expression, we plug the value of the variable into the expression and simplify.
Since we have 7 - 2x and x is -4, we have 7 - 2(-4).
Simplifying from here, 2(-4) is -8 so we have 7 - (-8).
Now, remember that a a minus sign followed by a
negative sign turns the two signs into a plus sign.
So 7 - (-8) can be thought of as 7 + (+8) which is 15.
Answer:
4
Step-by-step explanation:
Step 1: Subtract 8 from both sides.
17n+8−8=76−8
17n=68
Step 2: Divide both sides by 17.
17n/17
68/17
Answer:4
