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Sonbull [250]
3 years ago
15

Will someone tell me if these are right or not

Mathematics
2 answers:
Marianna [84]3 years ago
8 0
Looks correct to me :)
chubhunter [2.5K]3 years ago
3 0
You are right. Hope this helps! :)
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4. Tyrone needs to save $100 to pay for his trip to
erik [133]

Answer:

<u>6 hours</u>

Step-by-step explanation:

Subtract saved amount from required amount :

  • $100 - $45.50
  • $54.50

Divide by the pay rate :

  • $54.50 / $9.25
  • 5.89 ≅ 6

Tyrone must work at least <u>6 hours</u> to have $100 saved.

8 0
2 years ago
The function that represents bruce’s elevation in feet over time in hours is an exponential function that starts at 1,505 feet.
Strike441 [17]

Answer:

<h3>The function for Bruce’s elevation is f(x)=1505(6)^x and because b=6 that is greater than 0, it is an exponential growth function.</h3>

Step-by-step explanation:

We are given initial Bruce’s elevation = 1,505 feet.

Each successive hour, his average elevation change for the hike becomes 6 times the previous hourly elevation change.

We know, the exponential function f(x)=a(b)^x, where a is the initial value, b is the growth factor and x is the exponent represents time in hours.

Therefore, initial value a=1505, growth factor b for exponential function f(x)=a(b)^x is 6.

Plugging a=1505 and b=6 in f(x)=a(b)^x , we get

f(x)=1505(6)^x

Also note, if b>0, it would be an exponential growth function.

<h3>Therefore, the function for Bruce’s elevation is f(x)=1505(6)^x and because b=6 that is greater than 0, it is an exponential growth function.</h3>
8 0
3 years ago
Simplify 4x²y+5xy²+3x²y+2x​
Viefleur [7K]

Answer:

7x^2y+5xy^2+2x

Step-by-step explanation:

3 0
2 years ago
Bobby decided to watch all of the movies in his
disa [49]

Answer: C. y = 10x + 15

Step-by-step explanation:

He has already watched 15 movies so that's plus 15

And now he wants to watch 10 movies per week, we don't know how many weeks so that's '<em>x</em>' in this equation.

If he watches movies for <em>x </em>weeks that's 10 times <em>x </em>which is the 10x in the equation.

Hope that helped!

4 0
2 years ago
9. Stephanie gets her hair cut every 42 days. Her sister goes to the
Fiesta28 [93]

Answer:

Yes

408 days

Step-by-step explanation:

The LCM is 408

= 408 days

5 0
3 years ago
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