x+5+x+x+5=4x+10
Answer:
4x+10
Step-by-step explanation:
x+5+x+x+5=4x+10
. Solve: 5x < 9x-1 / 2
<span>-4x < - 1/2 , now divide by -4 and switch signs </span>
<span>x > 1/8 </span>
<span>2. There is a 20% chance that it will snow on Monday and a 40% chance on Tuesday. What is the probability that it will NOT snow on both Monday and Tuesday? </span>
<span>P( NOT snow on both Monday and Tuesday) = (1-.2)(1-.4) = 12/25 </span>
<span>c. 12/25 </span>
<span>3. The total cost of renting a sailboat is $120 plus $60 a day. How many days was a sailboat rented if the total cost was $360? Solve. </span>
<span>120 + 60d = 360 </span>
<span>60d = 360 - 120 = 240 </span>
<span>d = 4 </span>
<span>4. Two cards are chosen at random without replacement from a deck of 52 cards containing 4 kings. Which expression could be used to find the probability of choosing two kings? </span>
<span>b. 4/52 x 3/51 </span>
<span>There are 4 x 3 ways to pick 2 kings </span>
<span>There are 52 x 51 ways to pick any two cards</span>
A-b=21
5a-2b=18
We can use substitution here. Take the first equation and solve for A. (Picking this one because it's easy)
a = 21+b
Plugin to the second equation:5(21+b)-2b=18
Simplify: 105 + 5b - 2b = 18
Simplify: 105 + 3b = 18
Subtract both sides: 3b = 18-105
Simplify: 3b = -87
Divide: b = -29
Plug back into the first: a=21+b
a = 21 - 29
a = -8
Option D
Alaska has 4.91851852 thousand miles more than Florida coastline
