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masha68 [24]
2 years ago
15

-2x-x+5=-2x+3x-10x pfff

Mathematics
1 answer:
Ket [755]2 years ago
3 0
-2x-x+5=-2x+3x-10x  cancel equal terms
-x+5=3x-10x  collect like terms
-x+5=-7x   move terms
-x+7x=-5  collect like terms
6x=-5   divide both sides by 6

x=-5/6 or 0.83
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What is the halving and doubling strategy
malfutka [58]
Halving-reduce by half or think what is fifty% of the number or divide by two
doubling-add the number you got to the same number or multiply by two

Halving Ex.:6/2=3

Doubling ex.: 9+9=18 or 6*2=12
6 0
3 years ago
Wendy thinks the perfect chocolate chip cookie has 353535 chocolate chips for every 555 ounces of dough. Cookie Club makes batch
poizon [28]

Answer:

The Cookie Club cookies have less chocolate chips then Wendy does.

Step-by-step explanation:

35/5= 7 100/15= 6 1/3

7 0
2 years ago
Read 2 more answers
Tim bought some 25 cent and some 29 cent stamps. He paid 7.60 dollars for 28 stamps. How many of each type of stamp did he buy?
Citrus2011 [14]

Answer:

25 cent stamps = 13 and 29 cent stamps = 15

Step-by-step explanation:

x = 25 cent stamps and y = 29 cent stamps

x + y = 28......x = 28 - y

0.25x + 0.29y = 7.60

0.25(28 - y) + 0.29y = 7.60

7 - 0.25y + 0.29y = 7.60

-0.25y + 0.29y = 7.60 - 7

0.04y = 0.60

y = 0.60 / 0.04

y = 15 <===== 29 cent stamps

x + y = 28

x + 15 = 28

x = 28 - 15

x = 13 <===== 25 cent stamps

lets check it...

0.25x + 0.29y = 7.60

0.25(13) + 0.29(15) = 7.60

3.25 + 4.35 = 7.60

7.60 = 7.60 (correct..it checks out)

8 0
3 years ago
What are the x and y intercepts of this problem y=-3/8x-9
likoan [24]

Answer:

y=-3/8.0-9 y=1/3 y intercept and for the x intercept is zero

Step-by-step explanation:

3 0
3 years ago
4a-3b=21 true or false
Katarina [22]
True, 
4a - 3b
4(6) - 3(1)
24  - 3  =  21
7 0
2 years ago
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