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valkas [14]
3 years ago
13

E Jessica, Bob, and Ravi sent a total of 121 text messages during the weekend. Jessica sent 5 fewer messages than Ravi. Bob sent

4 times as many messages as Ravi. How many messages did they each send? mumhor of text messages Jessica sent: 6​
Mathematics
1 answer:
gladu [14]3 years ago
3 0
21 messages they sent together
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Jessica has an account with a credit union. Her account earns 2.4% simple interest yearly. Exactly a year and a half ago, she op
Dafna1 [17]
The basic equation for interest is the investment amount(x) times the time in years(y) times the percent of interest(z).

That makes the equation:

x·y·z= amount with interest.

Lets plug in the numbers:

$900 x 1.5 x 2.4%

Now turn the percent into a decimal:

2.4% ----> .024

Now the equation is:

$900 x 1.5 x .024

Now do the math:

$900 x 1.5 = 1350
1350 x .024 = 32.4
1350 + 32.4 = 1382.4

The final answer is $1382.40

Hope this helps!
6 0
3 years ago
Convert 54and1/8% into decimal form
jonny [76]

Answer:

I think it will be 54.125%

7 0
3 years ago
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Use the definition of a derivative to find f’(x).
tatyana61 [14]

Answer:

f'(x) = -\frac{9}{x^2}

Step-by-step explanation:

i) f(x) = 9 / x

ii) f'(x)  = $\lim_{h\to 0} \frac{f(x+h) - f(x)}{h} $  \hspace{0.2cm}

        = $\lim_{h\to 0} \frac{\frac{9}{x+h}  - \frac{9}{x} }{h}  =  \hspace{0.1cm} $\lim_{h\to 0} \frac{9x - 9(x+h)}{hx(x+h)} $ \hspace{0.1cm} =  \hspace{0.1cm}$\lim_{h\to 0} \frac{-9h}{hx(x+h)}  =  $\lim_{h\to 0} \frac{-h}{x(x+h)} = \frac{-9}{x^2}$

7 0
3 years ago
Customer- I recently saw an advertisement that said your company would give 5% discount to anyone who enrolls in your automatic
Darya [45]

Answer: $3.75

Step-by-step explanation:

The amount that you would save is 5% of your monthly bill of $75.

This amount is:

= 75 * 5%

= $3.75

<em>The total amount that you would pay is:</em>

<em>= 75 - 3.75</em>

<em>= $71.25</em>

4 0
3 years ago
13y-2x=3<br> slope intercept
Fiesta28 [93]

Answer:

World shown below!

Step-by-step explanation:

Slope-intercept form: y = mx + b

13y - 2x = 3

Add 2x to both sides;

13y = 2x + 3

Divide both sides by 13;

y = \frac{2}{13}x+\frac{3}{13}

8 0
3 years ago
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