How do you add integers with the same sign? PLEASE I NEED IT NOW AND THANK YOU
Answers
For example:
-9 + -9 = -18 (kept the sign)
9 + 9 = 18 (kept the "sign")
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B) 19.63
C) 20.56
D) 28.26
Answers
area=pir^2
d/2=r
6/2=r=3
A=3.14*3^2
aera=3.14*9
area=28.86
answer is D
Answer:
Step-by-step explanation:
the correct answer is d
Answers
2k-4=k
+4 +4
2k=k+4
-k -k
K=4
Simplify both sides of the equation
k(2)+(2)(-2) = k
Simplify
2k-4 = k
Subtract k from both sides
2k-4-k = k-k
k-4 = 0
Add 4 to both sides
k-4+4 = 0+4
k = 4
I hope that's help !
Answers
Answers
Answer:
4.8
Step-by-step explanation:
A + 11 squared = 12 squared
A squared + 121 = 144
-121 -121
Sqaure root A squared and 23 squared and get 4.8
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So we can group 5 cars and 1 truck into 6
30 / 6 = 5 there are five groups of.... the group.
for each group, there is only 1 truck, and there were 5 groups.
Therefore, in the parking lot, there are total of 5 trucks.
Answers
you ride your bike X miles per hour up a mountain for 45 minutes on the way
We convert minutes into hour because speed is in miles per hour
To convert minutes into hour we divide by 60
45 minutes =
it takes 20 minutes to ride your bike down the mountain
20 minutes =
you ride your bike X miles per hour up a mountain
Distance = speed * time taken
distance covered while riding bike up a mountain is
D = x *0.75
on the way down the mountain you ride your bike for 4 miles per hour faster
So time taken is x + 4
distance covered while riding bike up a mountain is
D = (x+4) * 0.33
Distance covered by climbing up and down the mountain are same
so we make the distance equation equal
x *0.75= (x+4) * 0.33
0.75x = 0.33x + 1.32
Subtract 0.33 from both sides
0.42x = 1.32
Divide both sides by 0.42
x = 3.1429 miles per hour
Distance covered up D = 0.75* x = 0.75 * 3.1429 = 2.357175
Distance covered down D = (3.1429 +4) * 0.33 = 2.357157
Total distance covered = 2.357175 + 2.357175 = 4.71435
you ride your bike in total of 4.71 miles approximately .
Answer:
The total distance covered during riding up and down the mountain is 4.714 miles.
Step-by-step explanation:
Speed of the bike while riding up mountain = X mile/hour
Distance covered be d.
Time taken to cover d distance = 45 minutes = 0.75 hour
(1 hour = 60 min)
...(1)
Speed of the bike while riding down mountain = (X+4) mile/hour
Distance covered while moving down the mountain = d.
Time taken to cover d distance = 20 minutes = 0.33 hour
...(2)
O solving (1) and (2):
we get, d = 2.357 miles
X = 3.143 miles/hour
Total distance covered by us = d + d= 2.357 miles+ 2.357 miles = 4.714 miles