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muminat
3 years ago
12

PLEASE HELP ASAP! NO JOKE OR SCAM ANSWERS!! FULL ANSWERS ONLY!!!

Mathematics
2 answers:
Misha Larkins [42]3 years ago
4 0

Answer:

  • 12 hours

Step-by-step explanation:

<u>Given:</u>

  • The total amount = $991
  • Cost of parts = $475
  • Hourly labor rate = $43
  • Number of hours = x

(A)

<u>The equation:</u>

  • y = 43x + 475

(B)

<u>Solve for x:</u>

  • 43x + 475 = 991
  • 43x = 991 - 475
  • 43x = 516
  • x = 516/43
  • x = 12
marishachu [46]3 years ago
3 0
Can you show picture question please ?
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How do I write 2.8 as a fraction?
ruslelena [56]
Well you see, you have 2/8, (fraction) and here is a few others,
These are COMMON. 4/16, 2/8, 6/24, etc.... 
You multiply the denominator and numerator by the same answer.
Thats how I think I learned it.
5 0
3 years ago
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I need help with this question. It is due today and if I email my teacher, she doesn’t respond till 10 pm. So please anyone who
dangina [55]

Answer:

Step-by-step explanation: rip this kid aye

4 0
3 years ago
Read 2 more answers
Please answer please
Anvisha [2.4K]

Answer:

8 = m, No solution

Step-by-step explanation:

1. -88 = -3(4m + 5) - (1 - 3m)

-88 = -12m - 15 - 1 + 3m : distributed into parentheses

-88 = -9m - 16 : combined like terms

+16           + 16 : adding to cancel out

-72 = -9m

/-9       /-9 : dividing by -9 to cancel

8 = m

2. -4(5k - 7) + 2k = -2(9k + 5)

-20k + 28 + 2k = -18k - 10 : distributed into parentheses

-18k + 28 = -18k - 10 : combined like terms

       + 10            + 10 : adding to cancel out

-18k + 38 = -18k

+18k            +18k : adding to cancel out

38 = 0k (No solution)

         

5 0
2 years ago
Graph y=3/4x+2.please
iren [92.7K]
There
That’s the table of values and the graph itself

6 0
2 years ago
What is the standard deviation of a random variable q with the following probability distribution? (Do not round intermediate ca
stiks02 [169]

Answer:

The standard deviation of given probability distribution is 0.8292

Step-by-step explanation:

We are given the following in the question:

              q:        0          1          2

Probability:    0.25     0.25    0.50

Formula:

E(q) = \displaystyle\sum q_ip(q_i)\\=0(0.25) + 1(0.25) + 2(0.50) = 1.25

E(q^2)= \displaystyle\sum q_i^2p(q_i)\\=0^2(0.25) + 1^2(0.25) + 2^2(0.50) = 2.25

Variance =

\sigma^2 = E(q^2) = (E(q))^2\\= 2.25- (1.25)^2\\=0.6875\\\sigma = \sqrt{0.6875} = 0.8292

Thus, the standard deviation of given probability distribution is 0.8292

8 0
4 years ago
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