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dusya [7]
3 years ago
8

12.2​z ​+ 19.4 = -2.7​z​ + 93.9

Mathematics
2 answers:
lapo4ka [179]3 years ago
8 0
Z=5 I believe I hope this helps :)
Digiron [165]3 years ago
3 0

Answer:

z=5

Step-by-step explanation:

12.2z​+ 19.4 = -2.7​z​ + 93.9

14.9z=74.5

z=5

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Juniors and seniors at a local school were surveyed to see if they were left-handed or right-handed. The data is displayed in th
Novosadov [1.4K]
P(left handed senior) = 14/(36 + 14 + 44 + 106) = 14/200 = 0.07 = 7%
8 0
3 years ago
IF YOU ANSWER THIS I WILL GIVE YOU BRAINLIEST!! 21PTS
vovangra [49]
<span>200 < 225 + 80x < 550

The 200 is the amount the Jenna currently have. 
225 + 80x is the amount that Jenna has to pay given x number of hours.
550 is the sum of Jenna's 200 and additional 350 she can get by selling pre-ordered Cds. This is the maximum amount she can pay for the studio rental and sound technicians.

225 + 80x < 550
80x < 550 -225
80x < 325
80x / 80 < 325/80
x < 4.06 or 4 hours

225 + 80x </span>→ 225 + 80(4) = 225 + 320 = 545
<span>
The number of hours for the sound technician will range from 1 hour to 4 hours. 

Assuming they will use 6 hours.

225 + 80(6) = 225 + 480 = 705
705 - 550 = 155

Jenna has to raise an additional $155 to pay off the studio rent and 6 hours of sound technicians. 


</span>
4 0
3 years ago
Help me plss plss I really need help I have a f
Colt1911 [192]

Answer:

A. 5 1/2 and D. 11/2

Step-by-step explanation:

Make improper fraction

8*1+3=11/8

Solve by multiplying:

4*11/8

44/8

Simplified is 11/2

We can turn it back into a mixed number

2*5+1=11 so 5 1/2

6 0
3 years ago
Can someone please factor this 15x^2-17x-18
Rudiy27
Answer is 18 and value of x is 0



5 0
3 years ago
Pls help and hurry i will report if you answer any unnecessary answers.
sleet_krkn [62]

Answer:

847.8 sq meters

Step-by-step explanation:

Formula:

A= 2πrh + 2πr^2

A= 2(3.14)(9)(6) + 2(3.14)9^2

A= 339.12 + 508.68

A= 847.8

7 0
2 years ago
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