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Akimi4 [234]
2 years ago
12

Can U guys please help with this. :)

Mathematics
1 answer:
V125BC [204]2 years ago
5 0

Answer:

x=0.9

Step-by-step explanation:

1.convert to improper fractions

4x+9/7/3=3x/0.5

2.Apply fraction cross multiply

(4x+9) * 0.5=7/3 * 3x

3. simplify

(4x+9) *0.5 =7x

4.Expand

2x+4.5=7x

5.Subtract 4.5 from both sides

2x=7x-4.5

6.Subtract 7x from both sides

2x-7=7x-4.5-7x

7.Simplify

-5x=-4.5

7.Divide by -5

x=0.9

 

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Approximately 18% of the population of California is 70 years or older. In a random sample of 4, what is the provability for 3 o
Semmy [17]

Answer:

The correct response will be "0.01913".

Step-by-step explanation:

According to the question,

p - P(70 years or older)

= 0.18

n = 4

X = no. of individuals who are older than 70 years

Now,

∴ P(X=r)=n_C_r \ p^r(1-p)^{n-r}

∴ P(X=3)=4_C_3(0.18)^3(1-0.18)^{4-3}

                   =4\times (0.18)^3(0.82)^1

                   =0.01913

 

8 0
2 years ago
Carlos is in the 12% tax bracket. Over the course of the year, he paid $2,000 in student loan interest. This $2,000 decrease in
gulaghasi [49]

Answer:

The $2,000 decrease in Carlos's taxable income will save him

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Step-by-step explanation:

i) Carlos is in the 12% tax bracket.

ii)The $2,000 decrease in Carlos's taxable income will save him

= \frac{12}{100} \times \$2000 = \$240.

3 0
3 years ago
GIVING BRAIN AND 30pointsWhat is the solution to the system of equations below?
SpyIntel [72]

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Step-by-step explanation:

Using substitution, we get to the answer 12=0, which is untrue meaning no solution.

Hope this helps! Please give Brainliest!!

5 0
3 years ago
Read 2 more answers
Gena wants to estimate the quotient of –21.87 divided by 4.79. Which expression shows the estimate using front-end estimation?
allochka39001 [22]
-21/5 is the closest!!!

Hope this helps.

If you want me to explain why, just ask! :)
7 0
2 years ago
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Answer:

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Step-by-step explanation:

15/45=1/3

3 0
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