Part 1)
we have
------> equation A
------> equation B
Multiply by the equation A
------> equation C
Multiply by the equation B
-------> equation D
Adds equation C and equation D
therefore
<u>the answer Part 1) is the option A </u>
Part 2)
we have
------> equation A
Simplify Divide by both sides
------> equation B
the lines A and B are parallel lines, because the slope m is equal
so
The system has no solution
therefore
<u>the answer Part 2) is the option D</u>
There is no x value as there is no solution to the system.
Part 3)
we have
------> equation A
------> equation B
substitute equation B in equation A
therefore
<u>the answer part 3) is the option D</u>
Part 4)
Let
x---------> The number of one-step equations
y---------> The number of two-step equations
we know that
-------> equation A
------> equation B
substitute equation A in equation B
therefore
<u>the answer part 4) is the option D</u>
A) false
3(5)-5
15-5
10
b)True
3(6)-5
18-5
13
c) false
3(7)-5
27-5
22
There are ways of getting exactly 5 heads in 10 tosses. There are possible outcomes. So the probability of getting exactly 5 heads is
Cost per pound: 50 <span>¢.
Weight: 3 pounds
Total cost: 3x50 = 150 </span>¢
Answer:
7.30
Step-by-step explanation:
You take 7 and then do 3/10 which is .30
You put them together and get 7.30
Hoped that helped!