Answer:
x = 7
Step-by-step explanation:
5x + 21 = 8x
21 = 3x
7 = x
Answer:
8.2 million years
Step-by-step explanation:
The time can be found from ...
time = distance/speed
time = (47.0×10^4 m)/(5.7×10^-2 m/yr) = 8.2×10^6 yr
It will take about 8.2 million years for LA to have the same latitude as SF.
__
The given numbers each have 2 significant digits, so the answer is appropriately rounded to 2 significant digits.
Answer:
7
Step-by-step explanation:
Answer:
Look below.
Step-by-step explanation:
As 3/2 is the multiplicative inverse (reciprocal) of 2/3, multiply 3/2 to both sides.
6 = 2/3p Write the original equation.
6 · 3/2 = 2/3 · 3/2 · p Multiply the reciprocal of 2/3 (3/2) to both sides.
18/2 = p Simplify.
p = 9 Simplify.
Answer:
7,140
Step-by-step explanation:
Given the following :
Total Number of majors = 120
To obtain a double major, any to majors are combined) 2
Hence, maximum number of double majors available by obtaining 120C2.
Recall :
nCr = n! / (n-r)! r!
120C2 = 120!/(120-2)!2!
120! / 118! × 2!
= (120 × 119) / 2 * 1
= 14280 / 2
= 7140 ways.
Hence, there are a maximum of 7,140 ways of combining two majors