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3 years ago

For what value of (a) does the equation 3x+5=ax+5 have infinitely many solutions? Explain.

Mathematics

1 answer:

Ilia_Sergeevich [38]3 years ago

8 0

0 because anything times 0 equals 0 so it would not be important what you multiply 0 by

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How many liters of pure water must be added to how many liters of a 25% bleach solution to make 12 liters of a 15% bleach soluti

ArbitrLikvidat [17]

Answer: 4.8 liters

Step-by-step explanation:

Let x liter of water is added with y liter of 25% beach solution.

Thus, According to the question,

x + y = 12 -------(1)

0% of x + 25 % of y = 15 % of 12

25 % of y = 15% of 12

$25 y = 15\times 12$

$y = \frac{180}{25}$

$y = \frac{36}{5}$

Put this value in equation (1),

We get,

$x + \frac{36}{5} = 12$

$x = 12-\frac{36}{5}$

$x =\frac{60-36}{5}$

$x =\frac{24}{5}$

Therefore, the quantity of water = $x =\frac{24}{5}=4.8\text{ liter}$

And, the quantity of 25% bleach solution = $y =\frac{36}{5}=7.2\text{ liter}$

3 0

2 years ago

Given the following group of numbers, 8, 2, 9,4, 2, 7, 8, 0, 4, 1, which of the following

Lena [83]

Answer:

III. The mode is 2

Step-by-step explanation:

Mean: (8+2+9+4+2+7+8+0+4+1)/10 = 45/10 = 4.5

Median: (2+7)/2 = 9/2 = 4.5

Mode: There is no mode since 2 and 8 both appear twice (in other words, since they have the same frequency, it's bimodal)

The closest possible choice is III. The mode is 2, but keep in mind that since the data set is bimodal, there is no single mode.

4 0

2 years ago

Read 2 more answers

Ibrahim has some building blocks that are all cubes of the same size. He uses three of the blocks to make a pile with a height o

MArishka [77]

Answer:

72.5

Step-by-step explanation:

one block = 43.5 / 3 = 14.5

five blocks = 5 * 14.5 = 72.5 (ans)

4 0

3 years ago

One weekend, 600 tickets were sold to a carnival for a total of $2400. If an adult's ticket costs $6 and a child's ticket costs

erastovalidia [21]

Answer:

adults : 0 children: 600

Step-by-step explanation:

x + y = 600

6x＋4y = 2400

4×(x + y = 600) = 4x＋4y = 2400

(6x＋4y = 2400) － (4x＋4y = 2400) = x=0

so y=600

8 0

2 years ago

Please help me my mums gonna kill me if I fail this assignment.

Vika [28.1K]

Answer:

17 in,3 in, and 19in

so the third answer

Step-by-step explanation:

6 0

3 years ago