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Alex17521 [72]
3 years ago
15

Evaluate this expression for a = 3 and b = 4.

Mathematics
1 answer:
ahrayia [7]3 years ago
8 0

Answer:

14

Step-by-step explanation:

a = 3

b = 4

b(a + 4)-3(3 + 2)+3 - 2\\a = 3,b=4\\4(3+4)-3(5)+3 - 2\\4(7)-15+3 - 2\\28-14\\\\14

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erastova [34]

Answer:

4x-5y=10

Step-by-step explanation:

3 0
3 years ago
PLEASE HELP WILL MARK BRAINLIEST!!!!!! Base the question off this info: An experienced cashier at a grocery store takes 2 second
Vesna [10]
You need to use basic algebra for this.
For this I’ll use o as the items and p for the payment. First you need to find out how long it took for all the items to scan, so if it took each item 2 seconds to be scanned you need to times the total number of items (o) by two e.g. o x 2 = 62 items times two seconds which is equivalent to 62 seconds (1.02 minutes) after this step you need to minus the total time it took to scan the items for the transaction time (2 minutes) e.g. 2.00 - 1.02 = 2.58 minutes.

Hope this helped :)
3 0
3 years ago
Read 2 more answers
I need some help ASAP
wolverine [178]
Rise over run would be your slope sooo your slope is one that what I got
8 0
3 years ago
Read 2 more answers
Solve 3(x+1)=7(x-2)-3
tia_tia [17]

Answer:

x = 5

Step-by-step explanation:

To solve this, we just have to the multiplication and do the simplification (adding up the similar terms) afterwards:

3(x+1)=7(x-2)-3 becomes...

3x + 3 = 7x - 14 - 3

3x + 3 = 7x -17

Then we move all x's on one side and all plain numbers on the other side, we'll move the x's to the right since there's a bigger value there, and will move the plain numbers on the left side, by subtracting 3x and by adding 17 on both sides

3x + 3 - 3x + 17 = 7x -17 + 17 - 3x

20 = 4x

If we isolate x alone we have:

20/4 = x or x = 5

7 0
3 years ago
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Suppose we lined up all the people in the world (about 6.7 billion people). Assume that each person occupied 12 inches of the li
satela [25.4K]

Answer:

50.757575756‬

Step-by-step explanation:

I put it in calculator and transformed it.

6 0
3 years ago
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