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Len [333]
2 years ago
7

Find the value of x.

Mathematics
2 answers:
DanielleElmas [232]2 years ago
7 0

Answer:

x = -7

Step-by-step explanation:

Make an equation:

3x + 33 = 12

3x = -21

x = -7

zalisa [80]2 years ago
3 0

Answer:

x = -7

Step-by-step explanation:

form an equation.

14 + x + 2x + 19 = 12

like terms together;

x + 2x = 12 - 14 - 19

simplify;

3x = -21

divide both sides by 3;

x = -7

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Target sells 24 bottles of water for $3, and 36 bottles of water for $4. Which is the better buy and by how much
Oksana_A [137]
The better buy would be the 36 bottles of water for 4$ because it would be 9 bottles per dollar other than the 24 which is 8 bottles per every dollar. Hope it helps!
3 0
2 years ago
A. 15<br> B. 10<br> C. 3/8<br> D. 1/8
Anna71 [15]

Answer:

D

Step-by-step explanation:

the theoretical probability is a fancy term for an even amount of both, which would be 20 flips landing on H, and 20 landing on T. Since the question is asking what's the difference between the theoretical probability and the experimental results, you'd take 20(theoretical number of flips that land on H) and subtract 15 (experiment results for the amount of flips that land on H), and 20 - 15 = 5. Now that you know the difference is 5, you would divide 5 by 40 to find the answer. 5/40 = 1/8 when you simplify, making the answer D.

8 0
2 years ago
9. If y = 30 when x = 7, find x when y = 12.​
Marianna [84]
I have my work at the bottom but to explain you have to divide 30/12, and I got 2.5. That means 30 is 2.5 times bigger than 12. Because we have to find x, we have to divide 7/2.5, to find what is 2.5 times smaller than 7. That’s 2.8. So, x= 2.8

6 0
2 years ago
30 POINTS!!!!!!!<br><br> IT WILL TELL ME IF YOU ARE WRONG!!!!
Lady bird [3.3K]

Answer:

40 unit squared

Step-by-step explanation:

10*8=80

80/2=40

7 0
3 years ago
There are 14 boys and 9 girls in miss Keller's music class. what is the ratio of boys to girls
Feliz [49]

Answer:

14:9

Step-by-step explanation:

you cant simplify so just put : in between the numbers and boom! ur ratio is 14 to 9 or 14:9

hope this helps :D

8 0
2 years ago
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