The sum of two numbers is 18 and their difference is 4 what are the two numbers?
1 answer:
Answer:
7 and 11
Step-by-step explanation:
Let the two numbers be x and y
x+y = 18
x-y = 4
Add the two equations together to eliminate y
x+y = 18
x-y = 4
----------------
2x +0y = 22
Divide each side by 2
2x/2 = 22/2
x = 11
Solve for y
x+y = 18
11+y =18
Subtract 11 from each side
11+y-11 =18-11
y = 7
The two numbers are 7 and 11
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Answer:
2⅙ miles per day
Step-by-step explanation:
Miles : Days
39/4 = 9¾ : 4½ = 9/2
X : 1
39/4 ÷ 9/2 = X/1
39/4 × 2/9 = X
13/6 = X
X = 2⅙
Answer:
b
Step-by-step explanation:
I think so because its bigger than A but they both are x I'm pretty sure but b I think is the answer
Answer:
I guess the answer is 14/5
circumference of a circle (C)
C = πd or 2πr ( because d 2 x r)
r= 18 miles given
d= diameter
r= radius
d = 2 x r
d = 2 x 18 = 36 miles
2) C = πd
C = 3.14 x 36 = 113.04 miles
3) approximate measure of C = 22/7 x 36= 113.14 miles
