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mezya [45]
3 years ago
5

Find the difference for (-3ab-8a+8)-(-5ab+2)

Mathematics
2 answers:
CaHeK987 [17]3 years ago
6 0
  -3ab-8a+8
-(-5ab     +2)
------------------
2ab-8a+6

liubo4ka [24]3 years ago
6 0
Since the - sign is infront of an equation in parenthesis you have to distribute it as -1. So...
(-3ab-8a+8) -(-5ab+2)
(-3ab-8a+8) +5ab-2 hint. Negative times a negative equals a positive.
Now combine like terms.

2ab - 8a + 6
there is you final answer
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The total bill for a dinner, before tax, is $40.00. If you leave a 15% tip, you will leave a tip of
VMariaS [17]

The answer is 6$ because 50% of 40 would be 20 and 50% of 20 is 10 but when you all on the tax which would be around a dollar when you take 50% of 10 which is 5 and add on the tax which is a dollar you then get 6$ in total.

7 0
3 years ago
3.50 rounded to the nearest whole ounce​
Maslowich

Answer:

4

Step-by-step explanation:

Look at the tenths place to round.

4 and below, round down.

5 and above, round up.

In this case, it’s 5 so round up.

3.50 -> 4

5 0
3 years ago
katie has 4 grapes candies and 3 cherries candies. The ratio of the number of grapes candies to the total number of candie is
Tom [10]

Answer: 7 I think its adding but if its multiplying it is 12

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is the product of 2,681 and 4?
NikAS [45]
Product means multiply so 2,681 times 4 = 10,724
5 0
3 years ago
Read 2 more answers
Robert needs to cut four shelves from a board that is 2.5 meters long. The second shelf is 18 cm longer than twice the length of
g100num [7]
STEP 1:
convert meters to centimeters
100 cm= 1 meter

= 100 cm/m * 2.5 m
= 250 cm


STEP 2:
x= length of first shelf
2x+18= length of second shelf
x-12= length of third shelf
x+4= length of fourth shelf

since the whole board has to be used, add lengths of all shelves and set it equal to the whole length of the board (250 cm).

x + (2x+18) + (x-12) + (x+4)= 250 cm
combine like terms
5x + 10= 250
subtract both sides by 10
5x= 240
divide both sides by 5
x= 48


STEP 3:
find length of second shelf
= 2x + 18
= 2(48) + 18
= 114 cm


CHECK:
x + (2x+18) + (x-12) + (x+4)= 250
48 + (2(48)+18) + (48-12) + (48+4)= 250
48 + (96+18) + 36 + 52= 250
48 + 114 + 36 + 52= 250
250= 250


ANSWER: Shelf two is 114 cm.

Hope this helps! :)
8 0
3 years ago
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