<span>A number cube is rolled 310 times the results are: 51 ones,56 twos,45 threes,54 fours,53 gives, and 51 sixes. What is the probability of rolling even number?
</span><span><span>Ask for details </span> <span>Follow </span> Report</span> <span>by <span>Brianmugleston </span><span>32 seconds ago</span></span>
Step-by-step explanation:
4x + 2y = 10 --------(1)
2x + 3y = 33 -----------(2)
Multiply 2 with eq. (1) and 4 with eq. (2)
8x + 4y = 20 ____________(3)
8x + 12y = 132 ______(4)
Subtracting (3) from (4),
8x + 4y = 20
- 8x -12y = -132
----------------------
0 -8y = -112
y = 112/8
y = 4 is the answer.
Putting the vakue of y in eq. (2),
2x + 12 = 33
2x = 33-12
2x = 21
x = 21/2 is the answer.
Answer:
40 minutes.
Step-by-step explanation:
Bilal's speed is 80/64 = 5/4 times Ali's speed.
So, by proportion, Bilal will take 50 / 5/4 minutes to drive the course.
50 / 5/4
= 50 * 4/5
= 200/5
= 40 minutes.
Answer:
x = 34/13
Step-by-step explanation:
3(5x - 6) + 2(x + 8)
15x - 18 = 2x + 16
15x = 2x + 34
13x = 34
x = 34/13
Best of Luck!
<u>Answer and Explanation</u>
<u>__________________________________________________________</u>
<h2>The solution of the equation is 20. </h2><h3>( The value of x. )</h3>
<u>__________________________________________________________</u>
<em>The value of x is 20.</em>
<em>We can figure this out by...</em>
<u>__________________________________________________________</u>
<u></u>
<em> but what does x equal?</em>
<u></u>
= 
= 
<em>Since both are equal to -8, that means </em>
=
.
<em>Which means that...</em>
<em>x = 20</em>
<u>__________________________________________________________</u>
<em>Hope this helps! <3</em>
<u>__________________________________________________________</u>
<em></em>