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snow_tiger [21]
2 years ago
5

1) How many ink cartridges can you buy with 77 dollars if one cartridge costs 11 dollars ?​

Mathematics
2 answers:
Marrrta [24]2 years ago
7 0
7 is the answe cuz 11 22 33 44 55 66 77 count those and u get 7
nikitadnepr [17]2 years ago
6 0
7 Ink Cartridges

11x7=77
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Ruben put an empty cup underneath a leaking faucet. After 1 1/2 hours, Ruben had collected 1/4 cup of water. What is the rate, i
worty [1.4K]

Answer:

The rate is \frac{1}{6} cups per hour

Step-by-step explanation:

It took the faucet 1 1/2 hours, i.e 1.5 or 3/2 hours to fill 1/4 cup by leaking

We need to find the rate in terms of cups that can be filled by water in 1 hour.

Using unitary method:

If it takes \frac{3}{2} h for \frac{1}{4} cup;

then it will take 1 h for how many cups?

= \frac{1 \times \frac{1}{4} }{\frac{3}{2} }

= \frac{2}{4 \times 3}

= \frac{2}{12}

= \frac{1}{6} cups

Therefore, the rate is \frac{1}{6} cups per hour

5 0
3 years ago
Consider the system of equations.
jok3333 [9.3K]

Given:

The system of equations:

x-3y=9

\dfrac{1}{5}x-2y=-1

To find:

The number that can be multiplied by the second equation to eliminate the x-variable when the equations are added together.

Solution:

We have,

x-3y=9                        ...(i)

\dfrac{1}{5}x-2y=-1       ...(ii)

The coefficient of x in (i) and (ii) are 1 and \dfrac{1}{5} respectively.

To eliminate the variable x by adding the equations, we need the coefficients of x as the additive inverse of each other, i.e, a and -a So, a+(-a)=0.

It means, we have to convert \dfrac{1}{5} into -1. It is possible if we multiply the equation (ii) by -5.

On multiplying equation (ii) by -5, we get

-x+10y=5       ...(iii)

On adding (i) and (iii), we get

7y=14

Here, x is eliminated.

Therefore, the number -5 can be multiplied by the second equation to eliminate the x-variable.

6 0
2 years ago
Express 0.000000298 in scientific notation
Olenka [21]
The expression would be 2.98 * 10 to the -7 power? Please tell me if I'm wrong.
5 0
3 years ago
6x - 2y = 10 <br> y = -2x + 10
Nookie1986 [14]

Answer:

(3,4)

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Triangle DEF is the image of triangle ABC after a sequence of transformations. After you reflect ABC in the y-axis, what must yo
Artemon [7]

Answer:

Step-by-step explanation:

After reflection about y-axis, A'B'C' must be translated down 6 units to create image DEF.

ABC and DEF are congruent due to the following common properties of reflections and translations.

1. does not change the nature of geometric elements, i.e. maps a line to a line,  a segment to a segment, etc.

2. preserve lenths of segments.

3. preserves angles

By the congruent theorem of SSS, the two triangles are congruent.

4 0
2 years ago
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