Answer:
n=19
Step-by-step explanation:
6n - 22 = 92
+ 22 +22
----------------------
<u>6n</u> = <u>114</u>
6 6
n = 19
5 Girls + 3 Boys =8 (sample size)
Probability of choosing 1 boy P(1 B) = 3/8
Probability of NOT CHOOSING ANY BOY = 1-3/8 =5/8
Now apply the binomial probability to choose 3 Boys:
8C3(3/8)³(5/8)⁵ ==>P(All boys) = 0.28
Answer:
14°F
Step-by-step explanation:
We are given that,
The label for the high temperature is -10°C.
It is required to label the alarm in Fahrenheit (°F).
As we know,
(1°C × 
) + 32 = 33.8°F
Thus, for -10°C, we have,
(-10°C × ) + 32 = -18 + 32 = 14°F
Hence, the Fahrenheit value on the label will be 14°F.
Answer:
The measure of angle x is 122.5 degrees.
The measure of angle y is 57.5 degrees
Step-by-step explanation:
180=y+x
y=x-65
180= (x-65)+x
180=2x-65
245=2x
x=122.5
y=122.5-65= 57.5
Answer: 7.5kg
Step-by-step explanation:
Since Bill made mortar mix and he used 24kg of sand and 5kg of cement. This means that for 1 kg of cement, (24/5) = 4.8 kg of sand is used.
Therefore, when he uses 36kg of sand, the kg of cement used will be:
= 36 / 4.8
= 7.5 kg
Therefore, he'll use 7.5kg of cement and 36kg of sand.
