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sesenic [268]
3 years ago
12

I’m so confused can someone help me?

Mathematics
1 answer:
Zielflug [23.3K]3 years ago
3 0

Answer:

Step-by-step explanation:

7. 15/10 = 24/18

  900 ≠ 240

not similar

8. 4/6 = 9/15

54 ≠ 60

not similar

9. x/24 = 9/40

x= 5.4

10. 8.7/x = 6/16

    6x = 139.2

    x = 23.2

     x = 18.7

11. 24/9 = x/45

   9x = 1080

    x = 120 feet

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У - (-3y)<br><br> Iam confused on how to do this
jeyben [28]

Answer:

The answer is 4y.

Step-by-step explanation:

First you would solve the parentheses, which would be -1(-3y) which would equal positive 3y, and y+3y=4y. I apologize if I misunderstood the problem ^^

8 0
3 years ago
When does expanding and simplifying a(b+c) result in a positive value for ac
TiliK225 [7]

Answer:


Step-by-step explanation:

(ab + bc)(ab + bc)

Simplifying

(ab + bc)(ab + bc)

Multiply (ab + bc) * (ab + bc)

(ab(ab + bc) + bc(ab + bc))

((ab * ab + bc * ab) + bc(ab + bc))

Reorder the terms:

((ab2c + a2b2) + bc(ab + bc))

((ab2c + a2b2) + bc(ab + bc))

(ab2c + a2b2 + (ab * bc + bc * bc))

(ab2c + a2b2 + (ab2c + b2c2))

Reorder the terms:

(ab2c + ab2c + a2b2 + b2c2)

Combine like terms: ab2c + ab2c = 2ab2c

(2ab2c + a2b2 + b2c2)

7 0
4 years ago
I need help you don't have to explain the answer I just need it, thank you!
Yuki888 [10]

Answer:

j = 38

Step-by-step explanation:

j/-2 + 7 = -12

first subtract 7 from both sides

j/-2 = -19

then multiply both sides by -2

j = 38

7 0
3 years ago
Solve for x: 3x − 5 = 2x + 6.<br> 1<br> −1<br> 11<br> −11
olga nikolaevna [1]
First you want to get the x's on the same side
3x-5=2x+6
subtract 2x and add 5
x=11

Hope this helps!
5 0
3 years ago
Read 2 more answers
Jackie drinks a bottle of water and a bottle of orange juice every morning.
melisa1 [442]

Answer:

15.30

Step-by-step explanation:

use code tiko

3 0
3 years ago
Read 2 more answers
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