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tester [92]
3 years ago
13

Samuel saved some money for a new phone, but then he spent $24 of his savings on a

Mathematics
1 answer:
Goryan [66]3 years ago
4 0

Answer:

213$

Step-by-step explanation:

24$ on headphones

189$ left

so you add the use and what is left an u get 213$ do not forget to write $ when u are finished :)

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52 POINTS. <br> ⦁ Solve for x
pentagon [3]

Answer:

  • x = - 2.5

Step-by-step explanation:

  • 3^{4x - 5}=(1/27)^{2x + 10}
  • 3^{4x - 5}=(1/3^3)^{2x + 10}
  • 3^{4x - 5}=(3^{-3})^{2x + 10}
  • 3^{4x - 5}=3^{-3*(2x + 10)}
  • 4x - 5 = - 3*(2x + 10)
  • 4x - 5 = - 6x - 30
  • 4x + 6x = 5 - 30
  • 10x = - 25
  • x = - 2.5

4 0
3 years ago
What is the equation in slope intercept form?
patriot [66]

Answer:

Step-by-step explanation:

The line has a slope of -1/3. For lines to be perpendicular there product must equal negative 1

m1(m2)=-1

-m/3=-1

m=3

So we know our line has a slope of three so

y=3x+b, we can solve for the y intercept, b, using point (-2,8)

8=3(-2)+b

8=-6+b

b=14, so our line is

y=3x+14

8 0
3 years ago
Explain why the equation 5|x|-7=7 has only one solution.
son4ous [18]

According to the condition, this equation has <u>two</u> solutions: -14/5 and 14/5.

Short explanation:

5|x|=14; ⇔ |x|=14/5; ⇒

\left[\begin{array}{ccc}x= -\frac{14}{5} \\x= \frac{14}{5} \\\end{array}

PS. it's correct, if to substitute the values of 'x' into the condition/equation.

3 0
3 years ago
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dlinn [17]

Answer:

Step-by-step explanation:

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p = 0.6

The probability of failure, q is q = 1 - p

Thus, q = 1 - 0.6 = 0.4

Mean = np

Where n represents sample size. Thus,

Mean = 12 × 0.6 = 7.2

4 0
3 years ago
1a/3a + 2 = 11 what does a equal
VashaNatasha [74]
Because in the numerator and denominator of the fraction 1a/3a, you're able to simplify that and get 1/3. There is actually no solution to the problem you're asking. You're unable to find out what (a) equals. 
4 0
3 years ago
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