Answer:
dirk =13.25 hours
charlie =11 75 hours
Step-by-step explanation:
c+d=25------(1)
d-1.5=c-----(2)
from (1),
c+d=25
c=25-d-----(3)
substitude (3) into (2)
d-1.5=c
d-1.5=25-d
2d=26.5
d=13.25
if d=13.25 hours
c+d=25
c+13.25=25
c=25-13.25
c=11.75
Answer:
x=6
Step-by-step explanation:
4(x + 4) + 2x= 52
We solve the bracket first by multiplying x+4 by 4
4x+16+2x=52
Collect like terms
4x+2x+16=52
6x+16=52
6x=52-16
6x=36
Divide both sides by 6
6x/6=36/6
x=36/6
x=6
To check for accuracy. We subsitute x for 6 in the equation and both sides of the equation must be equal
4(x + 4) + 2x= 52
4(6+4)+2(6)=62
4(10)+2(6)=52
40+12=52
52=52
Answer:
9.22×10^9
Step-by-step explanation:
The number must be written with
- a number between 1-10
- multiplied by a power of 10
The power of 10 tells you how many times you moved the decimal.
There are
possible pairs they can choose. Let
and
denote the integers that Sofia and Tess, respectively, choose, so that
denotes the integer pair.
The event that either
or
has 5 possible ways of occurring:
So the probability of this happening is
. You're interested in the complement, which means the answer is 95%.
