Answer:
- 4
Step-by-step explanation:
= - 9 - (- 5)
= - 9 + 5
<em><u>= -</u></em><em><u> </u></em><em><u>4</u></em>
<em><u>hope </u></em><em><u>it's </u></em><em><u>helpful </u></em>
Answer:
r = 9
Step-by-step explanation:
3(r - 1) - 2(r + 3) = 0
First, use the distributive property.
3r - 3 -2r - 6 = 0
Now, isolate the variable "r" to one side by adding the opposite of the whole numbers to each side so it cancels it out on the left ide and adds it to the right.
3r - 3 -2r - 6 = 0
+3 +6 +3 +6
3r - 2r = 9
Subtract the r's.
r = 9
Now that we know r = 9, we can plug in 9 into the original (but distributed) expression for every time it uses the variable "r" to check our work.
3r - 3 -2r - 6 = 0
3(9) - 3 - 2(9) - 6 = 0
27 - 3 - 18 - 6 = 0
24 - 24 = 0
0 = 0
So, r = 9 is true.
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Answer:
300 cm³
Step-by-step explanation:
Volume of the glass filled with orange juice:
4/5-2/3= 12/15-10/15= 2/15
2/15 of glass = 40 cm³
Total volume of the glass:
40 cm³ ÷ 2/15= 40 cm³ × 15/2= 300 cm³
Answer:
See below.
Step-by-step explanation:
An example would be:
3x^2 + 6
and
3(x^2 + 2) .
The second way is found by dividing the first one by 3).
Remember, these are quadrilaterals, so they must add up to 360°. Just add up the angles and then do 360 minus that number to solve for x.
Therefore:
1. 118 + 90 + 99 = 307
360 - 307 = 53
2. 110 + 96 + 78 = 284
360 - 284 = 76
3. 48 + 118 + 97 = 263
360 - 263 = 97
4. 105 + 99 + 64 = 268
360 - 268 = 92
5. 103 + 63 + 113 = 279
360 - 279 = 81
6. 95 + 80 + 88 = 263
360 - 263 = 97