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Mnenie [13.5K]
3 years ago
13

How do I simplify by combining these numbers -3x - 5y + 2x + 10y

Mathematics
2 answers:
Aleonysh [2.5K]3 years ago
5 0
Combine -3 and 2 so id be -x and combine -5 and 10 so id be 5y so the answer would be -x + 5y
Wewaii [24]3 years ago
4 0
They are basically like groups. Take -3x+2x , Just do -3 +2 = -1 and then just add the x. So -1x. Next you have -5y+10y . Just do -5 + 10 = 5 and remember to add the x on so your final answer should be -1x + 5y 
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Identify the slope and y-intercept of y=4 over 5x plus 1.
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Step-by-step explanation:

3 0
3 years ago
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Which pair of ratios forms a proportion? (4/5 10/13), (7/8 15/18), and (1/2 14/28)
beks73 [17]

Answer:

½ and 14/28  

Step-by-step explanation:

If a pair of ratio forms a proportion, they are equal.

First pair of ratios:

4/5 =10/13

Convert to the least common denominator     (4 × 13)/65 = (10 × 5)/65

                                                                                  52/65 ≠ 50/65

The first pair of ratios is <em>not</em> a proportion.

Second pair of ratios:

7/8 =15/18

Convert to the least common denominator     (7 × 9)/72 = (15 × 4)/72

                                                                                 63/72 ≠ 60/72

The second pair of ratios is <em>not</em> a proportion.

<em>Third pair of ratios: </em>

½ =14/28

Convert to the least common denominator     (1 ×14)/28 = 14/28

                                                                                 14/28  = 14/28

                                                                                       ½ = 14/28

½ and 14/28 form a proportion.

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3 years ago
Need help 8th grade math
kenny6666 [7]
The third answer down is correct
6 0
3 years ago
Read 2 more answers
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