Answer:
(2,4)
*View attached graph*
Step-by-step explanation:
2x + 3y = 16
2 + 2y = 10
2 + 2y = 10
-2 - 2
2y = 8
/2 /2
y = 4
2x + 3y = 16
2x + 3(4) = 16
2x + 12 = 16
- 12 - 12
2x = 4
/2 /2
x = 2
(x,y) -> (2,4)
Hope this helps!
Answer: explanation below
Explanation: a rational number can be represented as fractions and integers. Rational numbers can be expressed as p/q, where both of them are integers and q isn’t equal to zero.
Let's do it in general first; inner radius r, outer radius R.
Little circumference is 2πr, bigger is 2πR, difference is
d = 2π(R-r)
For us R-r = 2 feet so that's
d = 2 (22/7) (2) = 88/7 ≈ 12.57 feet
Answer: 12.6
Answer:
see below
Step-by-step explanation:
(ii)
Given 4000 seconds to hours you divide the value by 3600 sec
=4000/3600 =1.1111
=1.0 hour (1 significant figure)
(b)
speed = 212 miles/hour
distance= 1 mile
time = distance/speed = 1/212 * 3600 =16.98 seconds
