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Sever21 [200]
3 years ago
11

zoes living room rug is 3 feet wide and 7 feet long she will cover the rug with 6 inch cardboard pieces for a painting project h

ow many cardboard pieces will zoe need
Mathematics
2 answers:
Alexxandr [17]3 years ago
5 0

Zoe will need 84 pieces if they are 6” by 6”

aleksley [76]3 years ago
5 0

For this case we have that by definition, 1 foot equals 12 inches.

So:

3 \ ft = 36 \ in\\7 \ ft = 84 \ in

So, the area of the Zoes carpet is:

A = 36 * 84 = 3024 \ in ^ 2

If the cardboard pieces are6 \ in\ by\ 6 \ in, then the area is:

36 \ in ^ 2

To indicate the number of necessary pieces we divide:

\frac {3024} {36} = 84

Thus, 84 pieces of cardboard are needed

Answer:

84

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Y-x=15 y-x=5 using elimination
Galina-37 [17]

Answer:

No solution

Step-by-step explanation:

To eliminate is to get rid of one of the variables.

You can choose to either add each term in the equations or subtract each term in the equation.

For a variable to be eliminated, there must one pair that have the same constant with it. Each equation already has the same constant with a variable.

Try adding them.

.     y - x = 15

<u>+    y - x = 5</u>

2y - 2x = 20   No variables were eliminated.

Try subtracting.

.     y - x = 15

<u>-     y - x = 5</u>

0y - 0x  = 10   All variables were eliminated.

.         0 = 10     This is false.

This system of equations cannot be solved.

Graphically, these two lines would have the same slope and are parallel. The solution to a system is same as the point of intersection. Parallel lines never meet, never intersect, therefore there is no solution.

3 0
3 years ago
What is four blank four blank four equals 4
attashe74 [19]
4 - 4 + 4 = 4.
four minus for plus four equals four.
3 0
3 years ago
Please help please thanks
Alina [70]

Answer:

A

Step-by-step explanation:

Newton's third law states that for every force, there is an equal and opposite reaction. For example, if you collide two objects together, all of the forces in the system would cancel out because energy conserved with the opposite and equal reactions.

Between two examples (2 identical billiard balls and 2 different toy cars), the easiest way to demonstrate Newton's third law is using the 2 balls, since they are identical in shape and mass. When pushing the two balls in the exact same way with the SAME force, the net force of the equation is basically 0;

F_f = F_1 + F_2 = ma - ma = 0

Therefore, A is correct.

If you pushed a toy car and a toy truck towards each other using the same force, the outcome would not be completely opposite since F = ma and masses are different. Instead, to have a completely opposite and equal reaction, the resulting direction and forces are different. The lighter car would accelerate more in the opposite direction to compensate for the lighter mass. Therefore, B is wrong because even though they are different sizes, newton's third law still happens in the resulting direction and forces, but are simply harder to explain due to so many differing factors.

C is wrong, because diameter of two objects has no correlation to the net force equations. Even if two objects have the same diameter, they could have different masses, shapes, elasticity, etc.

D is wrong, because it goes against Newton's 3rd law. Newton's 3rd law is a LAW. Meaning, it is ALWAYS true (unless in some distant future it's disproven). In any and every collision, energy is conserved in some way that net forces equal 0; either in friction, gravitational force, or resulting force, the net force is always 0.

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2 years ago
4th grade math the 8s in 88,000 answers
Tomtit [17]
Explain more are you trying to figure out how much the 8s are worth in the number
7 0
3 years ago
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Find the largest of 3 consecutive odd integers that have a sum of -75
Vika [28.1K]
Odd integers are 2 apart

they are
x,x+2,x+4

sum is -75

x+x+2+x+4=-75
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the largest is the farthest to right on a number line
largest is -23
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