Answer:
A
Step-by-step explanation:
x + y = 4a + 7
x - y = 2a + 5
In both equations, make x the subject of the formula
x = 4a + 7 - y equation 1
x = 2a + 5 + y equation 2
Subtract equation 2 from equation 1
2a + 2 -2y
= 2a + 2
Speed = distance divided by time. Plug in what you know.
Speed = 51.2 km / 4 hrs. ****** Simplify *******************
Speed = 12.8 km/hr
Answer:
Parallel cut-rectangle
Perpendicular cut-triangle
Step-by-step explanation:
A rectangular pyramid has a base that is a rectangle, but comes up into a point.
Answer:
51
Step-by-step explanation:
102 divided by 2 is 51
There are 45 numbers out of which 5 numbers are required to win an enormous sum of money
No of ways in which 5 numbers can be selected out of 45 numbers.
out of which there is only combination foe contest winning
When 100 different tickets are bought then
Probability of winning:
Probably of winning≈0,000082
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P.S. Hello from Russia :^)