Answer:
Regular price of 1 pizza = $15 {Assuming discount coupon = $22.5}
Step-by-step explanation:
Let regular non discounted price of 7 pizzas be x
x - 22.5 = 82.5
x = 82.5 + 22.5
x = 105 (Regular Non discounted price of 7 pizzas)
Regular Price of 7 pizzas = 105
Regular price of 1 pizza = 105 / 7 = 15
Answer:
x = 8
Step-by-step explanation:
( 6x + 1 ) + 90 + ( 5x + 1 ) = 180
6x + 1 + 90 + 5x + 1 = 180
11x = 88
x = 8
Answer:
S.A. = 150.72
Step-by-step explanation:
S .A. = 
4 x 4 x 3.14 = 50.24
3.14 x 4 x 8 = 100.48
100.48 + 50.24 = 150.72
The movement of the particle on the circle is its displacement.
The value of dy/dt at this time is -9/2.
<h3>What is the differentiation?</h3>
Differentiation is a process, in Maths, where we find the instantaneous rate of change in function based on one of its variables.
A particle moves on the circle x^2 + y^2=25 in the XY-plane for time t≥0. At the time when the particle is at the point (3,4), dxdt=6.
The equation of the circle is given as:

Differentiate with respect to time

Substitute all the values in the equation

Hence, the value of dy/dt at this time is -9/2.
Learn more about differentiation here;
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–24/5 = –4 4/5 = –4.8
List (in order from least to greatest) :
–24/5
–2.3
2.6