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Nikolay [14]
3 years ago
9

Can you help me with this question please

Mathematics
1 answer:
shtirl [24]3 years ago
4 0

Answer:

6 for $1.26 is better

Step-by-step explanation:

$1.26/6 = $0.21 per can

$1.98/9 = $0.22 per can

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Rachel fills 13 water bottles per hour. Alyssa fills 15 bottle of water per hour. This week Alyssa filled an additional 5 bottle
Reptile [31]
Rachel fills 13 water bottles per hour, so she contributes 13R.  Alyssa fills 15 bottles an hour, so she contributes 15A, plus 5 for the additional water bottles filled.  Thus, the full expression is:

13R+15A+5
3 0
3 years ago
Factor 5x^2+20x+12​
Readme [11.4K]

Answer:

5 x ^2  +  20 x  +  12

Step-by-step explanation:

not factorable

6 0
3 years ago
What is the volume of a certain cube? (1) The sum of the lengths of the edges of the cube is 36. (2) The surface area of the cub
german

Answer:

(1) The sum of the lengths of the edges of the cube is 36.

A cube has 12 equal edges. Sum = 36. Length of each edge = 36/12 = 3

Volume = 3*3*3 = 27

(2) The surface area of the cube is 54.

A cube has 6 identical faces. Area of each face = s^2 (s is the length of the side)

6s^2 = 54

s = 3

Volume = 3*3*3 = 27

Step-by-step explanation:

All you need to uniquely define a cube is any one measurement - length of a side/edge, area of a surface, volume etc. If you have any one of them, you can uniquely determine the others. So each statement alone is sufficient here.

To show how,

(1) The sum of the lengths of the edges of the cube is 36.

A cube has 12 equal edges. Sum = 36. Length of each edge = 36/12 = 3

Volume = 3*3*3 = 27

(2) The surface area of the cube is 54.

A cube has 6 identical faces. Area of each face = s^2 (s is the length of the side)

6s^2 = 54

s = 3

Volume = 3*3*3 = 27

8 0
3 years ago
Solve for y.<br> -5y = 60<br> Enter your answer in the box <br><br><br> Y=
Airida [17]

Answer:

The answer is negative 12

Step-by-step explanation:

- 5y = 60

\frac{ - 5y}{ - 5}  =  \frac{60}{ -5}

y =  - 12

5 0
2 years ago
Which is not an equation of the line that passes through the points (1, 1) and (5, 5)?
nydimaria [60]

Answer:

Any equation of the line that is different from y=x is the solution to the problem.

Step-by-step explanation:

step 1

Find the slope of the line that passes through the points (1, 1) and (5, 5)

m=(5-1)/(5-1)=1

step 2

Find the equation of the line into slope point form

y-y1=m(x-x1)

we have m=1

(x1,y1)=(1,1)

substitute

y-1=(1)(x-1)

y=x-1+1

y=x

therefore

Any equation of the line that is different from y=x is the solution to the problem.

5 0
3 years ago
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