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irga5000 [103]
3 years ago
14

Damon has five dimes and some nickels in his pocket, worth of a total of $1.20. To find the number of nickels Damon has a, stude

nt wrote the equation 5n + 50 = 1.29. Find the error in the students equation
Mathematics
1 answer:
Agata [3.3K]3 years ago
6 0
The answer to the equation should be in cents whereas it is in dollars which would be incorrect 
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A square pyramid and a cube have the same surface area. The length of each side of the base of the square pyramid is 10 feet. Th
Brrunno [24]

Answer:

The answer to your question is 23.2 ft

Step-by-step explanation:

Data

length square pyramid = 10 ft

width of a cube = 6 ft

height of the pyramid = ?

The surface area is equal in both figures.

Formula

Surface area of a cube = 6a²

Surface area of a square pyramid = ab + al = l x l + (l x h) /2

Process

1.- Calculate the surface area of the cube

           Ac = 6(6)² = 6(36)

                            = 216 ft²

2.- Substitute data in the square pyramid formula

           Ap = (10 x 10) + (10h)/2

3.- Equal both areas

               216 = 100 + 5h

- Solve for h

               216 - 100 = 5h

                         116 = 5h

                          h = 116 / 5

- Result

                          h = 23.2 ft                          

5 0
3 years ago
The graph of a system of equations with the same slope will have no solutions. (1 point)
Viefleur [7K]
I don’t really get what you’re asking here but a system of 2 parallel lines has no solution, and a system of 2 parallel lines is called inconsistent.
3 0
3 years ago
Find the coefficient of x in the expansion of (x+7). Using the triangle.
andrew11 [14]

Answer:

wouldnt it b 1

Step-by-step explanation:

5 0
3 years ago
What are the factors of x^2 + 3x -4 ?​
algol13

Answer:

1 and -4

Step-by-step explanation:

cause when you factor the equation its (x-1)(x+4)

4 0
3 years ago
Read 2 more answers
Help me and please explain
k0ka [10]

Answer:

4 attendees

Step-by-step explanation:

we can create and equation (x is the amount of attendees) $8 per attendee at a total of $32 is 8x=32 which you divide on both sides getting x=4 or 4 attendees

4 0
3 years ago
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