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2 years ago

PLEASE HELP !!!

Mathematics

1 answer:

katen-ka-za [31]2 years ago

4 0

Answer:

final cost of 3 pounds: 8 dollars

final cost of p pounds: 3.75p - 3.25 dollars

Step-by-step explanation:

Each pound costs $3.75, so 3 pounds cost 3*3.75 = 11.25 dollars. Subtract off the $3.25 to get the final cost to be 11.25-3.25 = 8 dollars. This takes care of the first part.

For the second part, the expression for the final cost is 3.75p - 3.25; where the 3.75p is the cost before the coupon is applied. If you plugged p = 3 into that expression, you should get 8 as a result. The variable p is some positive whole number. It's a place holder for the number of pounds of apples.

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nirvana33 [79]

Answer:

The answer is 9

Explanation: 

0.5a+8.75=13.25

We simplify the equation to the form, which is simple to understand

0.5a+8.75=13.25

We move all terms containing a to the left and all other terms to the right.

+ 0.5a=+13.25-8.75

We simplify left and right side of the equation.

+ 0.5a=+4.5

We divide both sides of the equation by 0.5 to get a.

a=9

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2 years ago

Find the x-intercepts of the parabola with vertex (1, -9) and y intercept at (0, -6).

liberstina [14]

1,0
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3 years ago

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Solve for f: −5f=20 30 POINTS TO SOMEONE WHO HELPS

zloy xaker [14]

Answer:

$\huge\boxed{\sf f = -4}$

Step-by-step explanation:

$\sf -5f = 20\\\\Dividing\ both\ sides\ by\ -5\\\\\frac{-5f}{-5} = \frac{20}{-5} \\\\f = -4$

$\rule[225]{225}{2}$

Hope this helped!

<h2>~AnonymousHelper1807</h2>

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2 years ago

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Luba_88 [7]

Answer:

Speed = 100/Time

Step-by-step explanation:

(a). Speed is a function of time : As seen from equation (1) Speed of the students varies according to the value of time. So, This a true statement.

(b). Time is a function of distance : Distance is not varying in the equation (1), it is fixed to be 100. So, time is not a function of distance because here the distance is made constant. So, This is false statement.

(c). Speed is a function of number of students racing : Speed is not depending on the number of students racing so sped is independent of the number of the students racing. Therefore, Speed is not a function of number of students racing. This is False statement.

(d). Time is a function of speed : As seen from equation (1) Time of the students varies according to the value of their speed. So, This a true statement.

Hence, the true statements are (a) and (d)

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2 years ago

On a biased dice the probability of getting a 6 is 4/5 the dice is rolled 500 times how many sixes would you expect to roll

Elanso [62]

Answer:

400 sixes

Step-by-step explanation:

Find how many sixes you could expect to roll by multiplying 500 by 4/5:

500(4/5)

= 400

So, you would expect to roll 400 sixes

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2 years ago