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Studentka2010 [4]
3 years ago
6

You pay 3.3 cents per minute for long-distance phone calls on your phone. Your phone bill is $3.40. Write and solve an equation

to find the number of minutes m of long-distance calls you made.
A. ; 103 minutes
B. ; 11 minutes
C. ; 83 minutes
D. ; 10 minutes
Mathematics
1 answer:
krek1111 [17]3 years ago
4 0
Number of long distance calls made = m
Total phone bill = $3.40 = 340 cents
Cost per minute for long distance call = 3.3 cents
Then
<span>3.3m = 3.40
On solving we get
m = 340/3.3
    = 103 minutes

From the above deduction, it can be concluded that the correct option among all the options that are given in the question is the first option. I hope the answer has come to your help.</span>
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In the triangle above, what is sin A
Shkiper50 [21]

Answer:

\large\boxed{\sf sin(A)=0.5}

Step-by-step explanation:

A right angled triangle is given to us and we would like to find out the value of sin(A) .

From the triangle we can see that the measure of angle BAC is 30° . Therefore ,

\longrightarrow A = 30^o

On using sin both sides ,

\longrightarrow sin(A) = sin30^o

As we know that the value of sin30° = 1/2. So;

\longrightarrow sin(A)=\dfrac{1}{2}

Simplify by converting it into decimal ,

\longrightarrow \underline{\underline{sin(A) = 0.5}}

<u>Hence</u><u> </u><u>option</u><u> </u><u>B</u><u> </u><u>is</u><u> </u><u>correct</u><u> </u><u>.</u>

And we are done!

8 0
2 years ago
Increase £15837.77 by 18.5%
labwork [276]

if we take £15837.77 to be the 100% and we increase it by 18.5%, that'll be 100% + 18.5% = 118.5%.

\begin{array}{ccll} \pounds&\%\\ \cline{1-2} 15837.77 & 100\\ x& 118.5 \end{array} \implies \cfrac{15837.77}{x}=\cfrac{100}{118.5} \implies (15837.77)(118.5)=100x \\\\\\ \cfrac{(15837.77)(118.5)}{100}=x\implies 18767.76\approx x

6 0
2 years ago
Carlos is 33 years younger than Kristen. 2 years ago, Kristen's age was 2 times Carlos's age. How old is Carlos now?
ale4655 [162]

Answer:

Carlos is 35 years old now

Step-by-step explanation:

Assume that Carlos is x years old now

∵ Carlos is x years old now

∵ Carlos is 33 years younger than Kristen

- Kirsten's age is the sum of x and 33

∴ Kirsten is x + 33 years old now

2 years ago

∵ Carlos's age = x - 2

∵ Kristen's age = x + 33 - 2 = x + 31

∵ Kristen's age was 2 times Carlos's age

- Equate Kristen's age by 2 times Carlos's age

∴ x + 31 = 2(x - 2)

- Simplify the right hand side

∴ x + 31 = 2x - 4

- Subtract x from both sides

∴ 31 = x - 4

- Add 4 to both sides

∴ 35 = x

∵ x represents Carlos's age now

∴ Carlos is 35 years old now

6 0
4 years ago
Please do number 23.
liraira [26]

Answer:

  165

Step-by-step explanation:

Let o and b represent the numbers of orchestra and balcony tickets bought, respectively.

  o + b ≥ 250 . . . . at least 250 tickets will be bought

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Substituting for o, we have ...

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  b ≥ 165 . . . . . . . . .divide by 2

The least number of balcony tickets the club could buy is 165.

5 0
3 years ago
Can anyone good in math help me please I’m in a Hurry :(
Butoxors [25]

First lets consider the regular numbers here. 15 + 24. That gives us 39. Next we consider the variables. There's 0 a's in the first part, and 1 in the second part. So you simply get 1a added on top of the 39. Next, the x variable. There's one on each part, so just add them together to get x^2 (Note that you must do it this way rather than getting 2x since you're only adding x's, so when adding/subtracting variables on its own, its expressed as an exponent). With all this in mind, you'd get answer A

5 0
3 years ago
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