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luda_lava [24]
3 years ago
11

Help pls D:

Mathematics
1 answer:
olchik [2.2K]3 years ago
3 0
A. The cost of buying x number of concert tickets for $76 each.
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PLS HELP WITH THIS MATH
laiz [17]
I think it’s 28.35

54/100 x 5 = 2.7
54 + 2.7 = 56.7
56.7/100 x 50 = 28.35
56.7 -28.35 = 28.35
6 0
3 years ago
Read 2 more answers
At the same rate, how many miles did she bike in the next 15 minutes?
mamaluj [8]
Distance = speed* time
D= constant rate *1/4 miles/hour
8 0
3 years ago
My Notes A street light is mounted at the top of a 15-ft-tall pole. A man 6 ft tall walks away from the pole with a speed of 4 f
Sergio [31]

Answer:

6.667 ft/s

Step-by-step explanation:

Given

Height of street light = 15ft

Height of man = 6ft

Speed away from pole = 4ft/s

Let x represents the distance between the man and the pole, and Let y represents the distance between the tip of the man's shadow to the pole.

This forms a similar triangle (see attachment below).

From similar triangles, we have

(y - x)/6 = y/15 ----- Solve equation

15(y - x) = 6 * y

15y - 15x = 6y ---- Collect Like Terms

15y - 6y = 15x

9y = 15x --- divide through by 9

y = 15x/9

y = 5x/3 ---- differentiate with respect to time, t

dy/dt = 5/3 dx/dt

dx/dt represents rate of change of distance per time = 4ft/s

while dy/dt represents rate of movement of his shadow tips

dy/dt = 5/3 * 4

dy/dt = 20/3 = 6.667 ft/s

4 0
3 years ago
Read 2 more answers
Can someone solve 3(b+2)+2(b-3)=-5
Alenkinab [10]

Answer:

b=-1

Step-by-step explanation:

3(b+2)+2(b-3)=-5

3b+6+2b-6=-5

5b=-5

b=-1

5 0
3 years ago
Read 2 more answers
Pleaseee helppppp !!
PilotLPTM [1.2K]

Answer:

1. -9xy

2. 6ab

3.-8mn

4. 17nx

Step-by-step explanation:

4 0
3 years ago
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