Answer:
12
Step-by-step explanation:
1st of all we should let the ration of boys to girls be 2x and 3x.
After that we should make the sum between 2x and3×and the sum of 2numbers is equal to 30
i.e.2x+3x=30
Then ,by solving this eqation we get the value of x=6
After that put the value of x in the number of boys
i.e.
2x=2×6=12
Hence ,the number of boys is 12
Answer:
Question: 1
Subtract 9 from each side.
Divide each side by 2
Add 11 to each side.
Divide each side by 4
Question: 2
10x +2 = 32
10x = 30
x = 3
Question: 3
19 -4c = 17
-4c = -2
c = 1/2 or 0.5
Question 4:
1.1x + 1.2x -5.4 = -10
2.3x = -4.6
x = -2
Question: 6
6(5 − 8v) + 12 = −54
6( 5 - 8v ) = -66
( 5 - 8v ) = -11
-8v = -16
v = 2
Step-by-step explanation:
Answer:
Step-by-step explanation:
First consider the parent function y = x^3 and its graph. The left side starts in Quadrant III and continues up through Quadrant I. A negative sign in front of the x^3 reflects this original graph in the x-axis; the graph now starts in Quadrant II and descends into Quadrant IV.
The end behavior of the given function is the same as that of the graph of y = -x^3;
The graph begins in Quadrant II and descends into Quadrant IV, down.
Answer:
d = 240 - 44t
Step-by-step explanation:
Distance of the raft to the waterfall
The raft is heading for the waterfall, therefore, the distance between the raft and the waterfall is diminishing.
Waterfall=240 ft from the tunnel
Speed of the raft =44 ft per second
Therefore the equation of a function rule that represent the distance of the raft to the waterfall is:
d = 240 - 44t
Where t=time in seconds
Answer:
<u>3/8</u>
Step-by-step explanation:
<u>Values we are given</u> :
- 16 flowers in total
- 6 lilies
<u>We know that</u> :
- Probability of selecting an object from a group of items = Number of objects / Number of items
Therefore,
- Probability of selecting a lily = Number of lilies / Number of flowers
- P = 6/16
- P = <u>3/8</u>
