Answer:
3/10
Step-by-step explanation:
P(red) = red marbles / total marbles
We have 30 red marbles
total marbles = (20 white+ 50 blue+ 30 red) = 100 marbles
P(red) = 30/100 = 3/10
Answer:78
Step-by-step explanation:
i did the math
Answer:
You bought 5 pounds of bananas
Step-by-step explanation:
Firstly, we assign variables.
Let the number of pounds of bananas bought be b and the number of pounds of apple bought be a .
One more pound of apples than bananas were bought.
Mathematically this means a - b = 1 or a = b+ 1 .........(i)
The total cost of apples bought is 3.4 * a = $3.4a
The total cost of bananas bought is 2.30 * b = $2.30b
Now the addition of both equals $31.90
Thus, we have;
3.4a + 2.3b = 31.9 •••••••••(ii)
From i, we can substitute for a
3.4(b+1) + 2.3b = 31.9
3.4b + 3.4 + 2.3b = 31.9
5.7b + 3.4 = 31.9
5.7b = 31.9 - 3.4
5.7b = 28.5
b = 28.5/5.7
b = 5 pounds
Answer:
b = -12
Step-by-step explanation:
First isolate b by subtracting 2 from both sides: b/4 = -3
then multiply both sides by 4 to find b: b = -12
The graph
is the parent function with a vertex at the origin (0, 0). In our parabola, we have (x+5)^2 which indicates side to side movement of the vertex. The standard form for the parabola is
, where h and k are the coordinates of the vertex. If your parabola has (x+5)^2, it originally was written as (x-(-5)). So our vertex has moved 5 units to the left. It also moves up 3 but you are only asking about the horizontal movement. 5 units to the left.