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telo118 [61]
3 years ago
10

Carson purchased supplies for his computer for $64. The sales tax was $4.16. He gave the salesperson $80. How much change did he

receive?
a. $11.84
b. $16
c. $68.16
d. $11.48
explain PLEASE i wanna know how to do this
Mathematics
1 answer:
krek1111 [17]3 years ago
3 0
To work this out you need to do 80 - 64 - 4.16 = 11.48

he received $11.48 change
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The sum of the roots of 3x 2 + 11x - 4 = 0 is<br><br> -11/3<br> -4/3<br> 11/3<br> 4/3
givi [52]

Answer:

The correct option is 1.

Step-by-step explanation:

If a quadratic equation is defined as

ax^2+bx+c=0             .... (1)

Then the sum of the roots is -b/a and the product of roots is c/a.

The given equation is

3x^2+11x-4=0          ... (2)

From (1) and (2) we get a=3, b=11 and c=-4.

The sum of roots is

\frac{-b}{a}=-\frac{11}{3}

The sum of roots is -\frac{11}{3}.

Therefore the correct option is 1.

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3 years ago
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Svetlanka [38]
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7 0
2 years ago
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andre [41]
The answer is b, c, and d
3 0
3 years ago
To obtain an average (arithmetic mean) of exactly 2/3, what fraction must be added to 1/6, 1/2, and 1/3?
ollegr [7]

Answer:

D. 5/3

Step-by-step explanation:

\frac{1/6+1/2+1/3+x}{4} =2/3

1/6+1/2+1/3+x=8/3

x=8/3-1/6-1/2-1/3

x=8/3-1/6-3/6-2/6

x=8/3-6/6

x=16/6-6/6=10/6

simplified

x=5/3

Hope this helps

3 0
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slega [8]
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Surface Area of the Prism =88 cm²

------------------------------------------------------------------
Answer: Surface Area of the Prism =88 cm²
------------------------------------------------------------------

7 0
3 years ago
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