Answer:
4x^2 + 21x - 18
Step-by-step explanation:
(9x^2+24x-8)-(5x^2+3x+10)
9x^2+24x-8-5x^2-3x-10
9x^2 - 5x^2 = 4x^2
24x - 3x = 21x
-8 - 10 = -18
Answer: 4x^2 + 21x - 18
Answer:
x=4
Step-by-step explanation:
Let he first piece be x the second be 3x and the very last one be 7x + 2
Add all the pieces together and you ought to get the length of the rope which is 46 ft
So your equation would be
x + 3x + 7x + 2 = 46
11x = 44
x = 44 / 11
x = 4
so the 3 pieces are 4 , 12 and 30ft
<h2>
Answer:</h2>
<em>The probability of rolling a 3 is 1/6.</em>
The probability of rolling a 7 is 0%.
<u>The probability of rolling a 3 or 4 is 1/3.</u>
<h3>
Step-by-step explanation:</h3>
The sides on a dice are 1, 2, 3, 4, 5, and 6. They all have a 1/6 chance of rolling.
So,
<em>There is a 1/6 chance of rolling a 3.</em>
<u>There is a 1/3 chance of rolling a 3 or 4.</u>
<u />
Since there is no 7 on a dice, there is a 0% chance of rolling it.
Answer:
The cost for each movie is $2
The cost for each video game is $6.5
Step-by-step explanation:
Let
x-----> the cost for each movie
y-----> the cost for each video game
we know that
5x+2y=23 -----> equation A
3x+8y=58 -----> equation B
Solve the system of equations by graphing
Remember that
The solution of the system of equations is the interception point both graphs
The solution is the point (2,6.5)
see the attached figure
therefore
The cost for each movie is $2
The cost for each video game is $6.5
The answer for 1.a is 13.
65*.20=13
To find percent in number just move the decimal up a value EXAMPLE:35%=.35 and multiply it to the number you want to find it for.
The answer for 1.b is .77% decrease.
Its not totally exact but they can't really sell .005 of a pizza.
Hope this helped!