Answer:
pizza: $4, coke: $3, chips: $2
Step-by-step explanation:
Lets make the price of a pizza=p a coke= k and a bag of chips=c
then we have the following equations
p+k+c=9
p+2k=10
2p+2c=12
Because p is common in all the equations we shall make it the subject of each equation.
p=9-(k+c)...........i
p=10-2k..............ii
p=6-c...................iii
We then equate i and iii
9-(k+c)=6-c
9-k-c=6-c
putting like terms together we get:
9-6=-c+c+k
1 coke, k=$3
replacing this value in equation ii
we get p=10-2(3)
p=10-6= 4
1 pizza, p=$4
replacing this value in equation iii
4=6-c
c=6-4
=2
a bag of chips, c=$2
Thus, a pizza, a coke and a bag of chips= pizza: $4, coke: $3, chips: $2
A random sample is one in which there is an equal chance of picking any item from a population.
So it is unbiased.
True
The picture isn’t visible it’s a black screen
Answer:
no, you would never reach the door.
Step-by-step explanation:
by continuing a path of only half way, wil still be half way to the door with out completely reaching the end.
Answer:
x=2
Step-by-step explanation:
Hi there!
Whenever we're solving an algebraic equation, our goal is always to isolate the variable, which in this case is x. We would do this by performing inverse operations on both sides of the equal sign to cancel values out.
Combine like terms on both sides of the equal sign
Add 2x to both sides to cancel out -2x (addition is the inverse of subtraction)
Add 9 to both sides to cancel out -9 and isolate 11x (addition is the inverse of subtraction)
Divide both sides by 11 to isolate x (division is the inverse of multiplication)
Therefore, x=2.
I hope this helps!
