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3 years ago

Alysa is solving the question below

Mathematics

1 answer:

Korvikt [17]3 years ago

4 0

Answer:

Step-by-step explanation:

Since y=y for a solution to the system of equations she should just solve

3x-12=-2x+8

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If 5 liters cost $2.50, then how much would it cost for 9 liters?

damaskus [11]

5:$2.50

9:?

divide 5 by both sides cause you wanna see how much is 1 liter so you can multiply that with 9.

5 divided by 5 is 1.

$2.50 divided by 5 is $0.50

1:$0.50

each liter costs $0.50

Multiply $0.50 with 9 and that is $4.50

the answer is $4.50

8 0

4 years ago

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you work for a telecommunications company and need to analyze the outcome of a proposed new cell tower project. cell phone radio

umka21 [38]

Answer:

The equations describing the area which each tower covers are given as

Tower A : $x^{2} + y^{2} = 16$

Tower B : $(x - 5)^{2} + (y - 4)^{2} = 9$

Tower C : $(x - 4)^{2} + (y + 4)^{2} = 25$

Step-by-step solution:

Cell phone radio towers broadcast a cell phone signal in circular pattern

Tower A at Adele Acres have position co-ordinates as (0,0) and a coverage radius of 4 ml. So, the area which it covers is given by the equation,

$x^{2} + y^{2} = 16$ -------------------------------(1)

Tower B at Brown Lake have position co-ordinates as (5,4) and a coverage radius of 3 ml. So, the area which it covers is given by the equation,

$(x - 5)^{2} + (y - 4)^{2} = 9$ -------------------------------(2)

Tower C at Cady City have position co-ordinates as (4,-4) and a coverage radius of 5 ml. So, the area which it covers is given by the equation,

$(x - 4)^{2} + (y + 4)^{2} = 25$ -------------------------------(2)

4 0

3 years ago

There are 20 entries in the chess tournament. How many ways can they finish in first, second,

Romashka [77]

Answer:

6840

Step-by-step explanation:

Here, the order matters (1st, 2nd, and 3rd), so we need to use permutations.

There are 20 people who can get in first place. After that, there are 19 people who can get in second place. Finally, there are 18 people who can get in third place. So:

20 * 19 * 18 = 6840

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3 years ago

Find the mean and median prices

AnnZ [28]

Find the mean and median of what,

4 0

3 years ago

There are 12 and in a class. What is the largestnumber of groups they can besplit into and have the samenumber of boys and girls

liq [111]

There will be 2 groups, and each group have 6girls and 9 boys.
12 ÷ 2 = 6
18 ÷ 2 = 9

4 0

3 years ago

Read 2 more answers