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Semenov [28]
3 years ago
6

The amount of money that remains from a 20-dollar bill after Malina buys 4 party favors for p dollars each is 20 - 4p. Find the

amount remaining if each favor cost 3$
Mathematics
1 answer:
vlada-n [284]3 years ago
3 0
P = the money, so...
20 - ( 4 times 3)
20 - 12
8. She has $8 remaining. Hope it helps! I you could vote me brainliest, that would be awesome!
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use the graph of g(x)=3 √x to help you explain why there is only one solution for every cube root equation of the form y=3 √x+a
Leni [432]

Answer:

G(x)=2x32+c

Step-by-step explanation:

4 0
2 years ago
A rectangle initially has width 7 meters and length 10 meters and is expanding so that the area increases at a rate of 8 square
Tems11 [23]

Answer:

The length of rectangular is increasing at a rate 0.5714 meters per hour.

Step-by-step explanation:

We are given the following in the question:

Initial dimensions of rectangular box:

Length,l = 10 m

Width,w = 7 m

\dfrac{dA}{dt} = 8\text{ square meters per hour}\\\\\dfrac{dw}{dt} = 40\text{ centimeters per hour} =0.4\text{ meters per hour}

We have to find the rate of increase of length.

Area of rectangle =

A = l\times w

Differentiating we get,

\displaystyle\frac{dA}{dt} = \frac{dl}{dt}w + \frac{dw}{dt}l

Putting values, we get,

8 = \dfrac{dl}{dt}(7) + (0.4)(10)\\\\\dfrac{dl}{dt}(7) = 8 -4\\\\\dfrac{dl}{dt} \approx 0.5714

Thus, the length of rectangular is increasing at a rate 0.5714 meters per hour.

5 0
2 years ago
Cressida decided to save a part of her income in a savings account that compounds interest every four months. Her account balanc
Bogdan [553]

Answer:

A

Step-by-step explanation:

account balance on compound interest = principal amount (1+rate/100)^time

here there are t years  so toat months are 12t and ad interest is after each 4 months so time is 12t/4 =3t

now total balance = 3545(1.045)^3t

here 3545 is principal amount , rate is( 1.045-1)×100 =4.5% per 4 months and 3t is time so clearly 3t or 3 is a growth factor hence option A

8 0
3 years ago
Read 2 more answers
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Yakvenalex [24]

Answer:

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The mean is the usual average, so I'll add and then divide:

0 + 1 + 2 + 3 + 4 + 5 + 6 = 21 divide by 7 you'll get 3

The median is the middle value, so first you'll have to rewrite the list in numerical order: There are seven numbers in the list, so the middle one will be the answer which is 3

0 , 1 , 2 , 3 , 4 , 5 , 6

5 0
2 years ago
The height of a trapezoid is 8in. and its area 96 in. (2nd Power) One base of the trapezoid is 6 inches longer that the other ba
Jlenok [28]
The lengths of the bases would be 3 and 9
Step by Step Description:

7 0
3 years ago
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