Ratio of girls to boys is 3:2....added = 5.....this means that 3/5 of the total students are girls and 2/5 of the total students are boys.
so if there are 50 students...
3/5(50) = 150/5 = 30 girls
2/5(50) = 100/5 = 20 boys
Answer:
7 x 10^-7
Step-by-step explanation:
If you use scientific notation,
move the decimal 7 places to the right to find a whole number between 1 and 9.
then, count the number of spaces.
in this instance, since the original number was a decimal, you need to put a negative power of 10.
hope this helps :)
please crown me brainliest!!!
1.7 hrs
Step-by-step explanation:
We can use cosine law to find the distance d:
where. a = 3 mi
b = 4 mi
gamma = 71.7°
d^2 = (3mi)^2 + (4 mi)^2 - 2(3 mi)(4 mi)cos(71.7)
= 9 mi^2 + 16 mi^2 -24cos(71.7)
= 17.464 mi^2
or
d = 4.2 mi
To find the time it takes for him to go from the cave to the waterfall, divide this distance d by his walking rate of 2.5 mi/hr:
t = d/v = 4.2 mi/2.5 mph
= 1.7 hrs
The generic equation of the line is:
y = mx + b
Where,
m: slope of the line
b: intersection with the y axis
Substituting values we have:
y = 3x + 4
For x = 7 we have:
y = 3 (7) +4
y = 21 + 4
y = 25
Answer:
The predicted and value for an x score of 7 is:
y = 25
Answer:
A) base = 6 units
B) height = 4 units
C) Area = 24 square units
Step-by-step explanation:
Base on the gragh given,
The base = |-5| + |1| = 6 unit
The height = |2| + |-2| = 4 unit
The area = base × height
The area = 6 × 4 = 24 square units.
