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Sidana [21]
3 years ago
10

Solve: -8-5/3x=17 i just need the answer fast

Mathematics
2 answers:
Vaselesa [24]3 years ago
5 0

Answer:

x = - 15

Step-by-step explanation:

Given

- 8 - \frac{5}{3} x = 17 ( multiply through by 3 to clear the fraction )

- 24 - 5x = 51 ( add 24 to both sides )

- 5x = 75 ( divide both sides by - 5 )

x = - 15

sergij07 [2.7K]3 years ago
4 0

Answer:

-15

Step-by-step explanation:

I assume that the question is

-8-(5/3)x=17\\

Then we have

-(5/3)x=17+8\\

Multiply both sides by -(3/5) to get

x=25\cdot (-3/5)\\x=(25/5)\cdot (-3)\\x=5\cdot (-3)\\x=-15

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then he earns 75 and saves x
5 times what=75
5 times 15=75

2 times 15=30
so the ration is 75:30
he saved $30


then

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Step-by-step explanation:

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3 0
3 years ago
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Answer this please I need a real answer
Anna11 [10]

Answer:

see explanation

Step-by-step explanation:

(a)

x² + 2x + 1 = 2x² - 2 ( subtract x² + 2x + 1 from both sides

0 = x² - 2x - 3 ← in standard form

0 = (x - 3)(x + 1) ← in factored form

Equate each factor to zero and solve for x

x + 1 = 0 ⇒ x = - 1

x - 3 = 0 ⇒ x = 3

-----------------------------------

(b)

\frac{x+2}{3} - \frac{2}{15} = \frac{x-2}{5} ( multiply through by 15 to clear the fractions )

5(x + 2) - 2 = 3(x - 2) ← distribute parenthesis on both sides

5x + 10 - 2 = 3x - 6

5x + 8 = 3x - 6 ( subtract 3x from both sides )

2x + 8 = - 6 ( subtract 8 from both sides )

2x = - 14 ( divide both sides by 2 )

x = - 7

--------------------------------------------

(c) Assuming lg means log then using the rules of logarithms

log x^{n} ⇔ nlogx

log x = log y ⇒ x = y

Given

log(2x + 3) = 2logx

log(2x + 3) = log x² , so

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x² - 2x - 3 = 0

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3 years ago
A teacher selects students from her class of 37 students to do 4 different jobs in the classroom: pick up homework, hand out per
dolphi86 [110]

Answer:

66045 ways

Step-by-step explanation: There are actually total of 37 student, and total of 4 jobs. But if the jobs are to be done by only one person each, then we are selecting 4 students.

So the number of ways of selecting 4 out of 37 using combination is

=37C4

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