That is a pretty hard one, but about 20. 2 x 10 since there are 30 marbles, so it makes sense to say 30 x 10 to get 300, but since you only have 2 purple, you only get 2 purple out of every 30,
SO in conclusion, 20 purple marbles.
Answer:
26.2 cm2
Step-by-step explanation:
120=360*1/3 >> This sector is 1/3 of a circle.
The area of a circle is 5*5*3.14=78.5
So 1/3 of it is 78.5*1/3=26.16=>26.2
Answer:
A.y=2x+1
Step-by-step explanation:
y = x+2
This is in the form y= mx+b
where m is the slope and b is the y intercept
m=1 we are doubling it
m=2
The y intercept is 2, we are dividing by 2
2/2 =1
b=1
y = mx+b
y = 2x+1
Answer:
(b-20)/4
Step-by-step explanation:
She had b beads initially and gave 20 to his sister;
what he would have now will be;
b - 20
So he made 4 beads with the remaining
To know the number of beads on each of the four , that will be dividing the number of beads we have left by 4
Mathematically;
that will be ;
(b-20)/4
Answer:
sample variance
the value of the one observation
the mean value of all observations
the number of observations
Step-by-step explanation: