<u>Answer:</u>
The correct answer option is
.
<u>Step-by-step explanation:</u>
We are to find the probability that both your parents were born on weekend (either Saturday or Sunday).
Total number of days in a week = ![7](https://tex.z-dn.net/?f=%207%20)
Number of days in weekend = ![2](https://tex.z-dn.net/?f=%202%20)
Probability of being born on weekend = ![\frac { 2 } { 7 }](https://tex.z-dn.net/?f=%20%5Cfrac%20%7B%202%20%7D%20%7B%207%20%7D%20)
P (both parents were born on weekend) =
= 4/49
Step-by-step explanation:
the standard measure for speed is
miles per hour.
now we got as measurement
3 miles per 1/4 hour.
to give the standard speed or "unit rate" we assume that the bicyclist maintains the same speed for a whole hour.
and the question is : how many miles is he traveling then in that 1 hour ?
to answer this we have to check how often the actually measured unit of time fits into 1 hour.
1/4 hour fits 4 times into 1 hour.
and that factor applies now also to the miles to keep the value of the rate or ratio unchanged :
miles/time × a/a = miles×a/(time×a)
so that (time×a) = 1 hour
and so, he traveled 3×4 = 12 miles per hour.
Answer:
N + 3 = -5
n= -8
N-4=9
n=13
4+N=10
n=6
-10+N=3
n=13
N-10=1
n=11
-11+n=-12
n=-1
N+19=20
n=1
15+N=-10
n=-25
N-6=-12
n=-6
N+4=16
n=12
Step-by-step explanation:
Answer:
2300
Step-by-step explanation:
Answer:
<h2>
176 cm²</h2>
Step-by-step explanation:
you have a square and 4 equal triangles, you find the area of all, and you sum.
square area = l²
8² = 64 cm²
triangle area = b*h/2
8 * 7 : 2 = 28 cm²
now we sum 1 square's area and 4 triangles' area.
64 + 28 + 28 + 28 + 28 = 176 cm²
or
64 + (28 * 4) = 176 cm²