Answer:
Step-by-step explanation:
Given
Jar contains 15 Green and
15 Purple marbles
Total marble
Probability of Picking a Purple marble is
Therefore probability of picking a marble is 
360
Step-by-step explanation:
im not too sure tho
<span>We see the numbers on a number line
_____|___|___|___|___|___|___|___|___|___|___|___|___|____>
-9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3
<______________________________|_________>
9 3
</span><span>You need to add both distances
</span><span>
|-9| + 3 = 9 + 3 = 12
</span><span>half
</span><span>12 : 2 = 6
</span><span>Now , we measure the distance towards the center section
</span><span>1 way
-9 + 6 = -3
2 way
3 - 6 = -3
Answere : -3
</span>_____|___|___|___|___|___|___|___|___|___|___|___|___|____>
-9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3
<___________________|____________________>
<span> 6 6
</span><span>we used the average math
</span>| - 9 | <span>means that the assumed value of -9 9 (positive )</span>
<span>
</span>
Answer:
1) 62.5
2) 50
3) 75
4) 100
Step-by-step explanation:
1)
Because it has a half-life of 25 days, half of it will decay after 25 days.
After 
days, there will be 
of it left.
So, 
.
2)
Because it has a half-life of 25 days, half of it will decay after 25 days.
After 
days, there will be 
of it left.
So, 
3)
Because it has a half-life of 25 days, half of it will decay after 25 days.
After 
days, there will be 
of it left.
So, 
.
4)
The only answer left is 
grams. You can solve it the same way you solved the previous steps.
Step-by-step explanation:
First, standard form is
a
x
+
b
y
+
c
=
0
In this question, we can expend the formula and rearrange it.
You can try it first, and the steps are as follow:
Step 1: Expend it
2
y
+
3
=
−
1
3
x
+
2
3
As there are fraction in the formula and it doesn't look good, we can eliminate it by multiplyng 3.
Step 2: Multiply by 3
6
y
+
9
=
−
1
x
+
2
Step 3: Rearrange the terms
x
+
6
y
+
7
=
0
