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Fofino [41]
3 years ago
11

What is -5(2a-3b)+5(3b-2a) simplified?

Mathematics
2 answers:
KIM [24]3 years ago
5 0
-10a+15b + 15b-10a = -20a+30b
Scilla [17]3 years ago
3 0
The answer is ............. -20a+30b
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katie collets stamp she has stamps from canada, United Staes,ands Rest of the world in a ratio of 1:1.2:1.5 she has 135 stamps f
lyudmila [28]

Answer:

90 stamps from Canada, 108 stamps from the United States, and 135 stamps from the Rest of the World

Step-by-step explanation:

Since this is a problem of proportion we can use the Rule of three to solve this. We do this by multiplying the diagonal available values and dividing by the third value in order to get the missing variable, which in this case would be the number of stamps in the other country. Like so...

1.5  <=====>  135 stamps

1.2  <=====>  x  stamps (United States)

(1.2 * 135) / 1.5 = 108 stamps (United States)

1.5  <=====>  135 stamps

1  <=====>  x  stamps (Canada)

(1 * 135) / 1.5 = 90 stamps (Canada)

Finally, we can see that Katie had 90 stamps from Canada, 108 stamps from the United States, and 135 stamps from the Rest of the World. All creating a ratio or 1:1.2:1.5

8 0
2 years ago
Which function is represented by the graph?
riadik2000 [5.3K]
Photo? i cannot answer without a photo:)
3 0
2 years ago
Read 2 more answers
Solve -1 &lt; x + 1 ≤ 6
andrey2020 [161]

Answer:

-2<x≤5

Step-by-step :

-1<x+1≤6 So fisrt what every we do to one side we must do to the other. In this case it's a bit different since we are dealing with inequalities.

-1<x+1≤6 I would start off by isolating x in the middle.

-1<x+1≤6 I subtracted 1 from all three sides.

-1     -1   -1

Now your equation should look like this:

-2<x≤5  Now there is really nothing much we can do here since we were just trying to get x by its self.

Answer : -2<x≤5

7 0
2 years ago
What is the inverse of the function f(x) = x – 12?
maxonik [38]

Answer:

f(x)^-1=x+12

Step-by-step explanation:

f(x)=x-12

y=x-12

x=y-12

y=x+12

f(x)^-1=x+12

Hope it helps.

6 0
3 years ago
Read 2 more answers
Y (y-4) – (y-2) (y-3)=10
marshall27 [118]

Answer:

y =16

I have solved it . It's in the picture above. Hope it helps

8 0
3 years ago
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