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Lisa [10]
3 years ago
11

Write a system of equations using x and y in each for the following

Mathematics
1 answer:
vlada-n [284]3 years ago
4 0
1) x+y = 170
x-y = 26

2) Subtract the two equations from each other. Doing this you get 2y = 56. 
So the value of y is 28. Then plug in the value of y into any of the two equations and solve for x.

x-28 = 26
x = 54

3) When writing solutions as an ordered pair, the x value always comes first followed by the y value. So it would be (54, 28). 
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BabaBlast [244]

Answer:

1. 3 packs of daffodils and 4 packs of tulips

2. then you would have 24 of each

3. $2.29

4. $37.54

5. $34.61

6.$2.93 was saved

7. 3 tulips

8. 12 daffodils

9. 9 tulips

10. 12 daffodils and 15 tulips

theres 2 left. ill let someone else do it

Step-by-step explanation:

3.   4.50*4=18            5.75*3=17.25

18+17.25 -> 35.25*.065=2.29 rounded

4. 35.25+2.29=37.54

5.  35.25-2.75->32.50*.065=2.11       2.11+32.50=34.61

6. 37.54-34.61=2.93

7. 6:8  -> 3:4  ratio -> 3:4

8. 8+4=12

9. 6+3=9

10. 24-12=12           24-9=15

6 0
3 years ago
Molly bought a flat. At the beginning of
anzhelika [568]
A is the answer sir if I’m wrong I’m sorry but I’m sure
3 0
3 years ago
5.8 times 10 and show work (optional)
Step2247 [10]

Answer:

58

Step-by-step explanation:

A easy way to get this is to remove the decimal in 5.8 which gives you ----> 58

NOTE: This works for any problem multiplying 10 x a decimal.

7 0
3 years ago
180 Added to the product of 45 and a number totals negative 720. Write an equation to determine the number.
IrinaVladis [17]

Answer:

45x + 180 = - 720

Step-by-step explanation:

Let the required number be x.

Therefore, product of 45 and x = 45x

180 added to 45x = 45x + 180

Since, 180 Added to the product of 45 and a number totals negative 720.

So, 45x + 180 = - 720

6 0
3 years ago
Does 3/20 have a repeating decimal form
olga_2 [115]

nope, this answer is 0.15

6 0
3 years ago
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