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Paladinen [302]
3 years ago
14

3(3y-4)=51 solve for y

Mathematics
2 answers:
mr Goodwill [35]3 years ago
8 0

Answer:

y=7

Step-by-step explanation:

[in picture]

Luba_88 [7]3 years ago
4 0

Answer:

y = 7

Step-by-step explanation:

3 × (3y - 4) = 51 multiply 3 with inside the parenthesis

9y - 12 = 51 add like terms

9y = 51 + 12

9y = 63

y = 7

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sveta [45]

Answer:40%

Step-by-step explanation: 12/30=.4

6 0
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Quality control is an important issue at ACME Company which manufacturers light bulbs. In order to conduct testing of the life h
mrs_skeptik [129]

Answer: 3424.28

Step-by-step explanation:

Given data : 378, 361, 350, 375, 200, 391, 375, 368,  321

Number of data values = 9

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4 0
3 years ago
Mona wrote 7 tests, and her test average is 93. There will be one more test before the end of the year. What is the lowest grade
olga55 [171]
For this case, the first thing we are going to do is assume that all the tests are worth the same.
 Then, we define a variable:
 x: score of Mona's last test
 We write now the inequality that models the problem:
 \frac{93 + x}{2}  \geq  90
 From here, we clear the value of x: 93 + x  \geq  90*(2) 

93 + x  \geq  180

 x  \geq  180 - 93

 x  \geq  87
 Answer:
 
the lowest grade that Mona can get for her last test so that her test average is 90 or more is:
 
x = 87
8 0
3 years ago
Please help me on this thank you so much
ruslelena [56]
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5 0
3 years ago
Find the measures of angles a and b when 0=44
puteri [66]
  • a = 44 by the alternate interior angles theorem.
  • b = 136 by the same-side interior angles theorem.
6 0
1 year ago
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