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3 years ago

Two lines that intersect to form right angles are called what?

Mathematics

2 answers:

Zanzabum3 years ago

8 0

<span>Two lines that intersect to form right angles are called </span>Perpendicular lines

Diano4ka-milaya [45]3 years ago

3 0

Perpendicular lines like a cross on a grid with four quadrants two lines that intersect forming for 90 degree angles are called perpendicular lines.<span />

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On a certain hot summer day, 481 people used the public swimming pool. The daily prices are 1.25 for children and 2.25 for adult

spayn [35]

Answer:the number of children that swam in the public pool that day is 222

the number of adult that swam in the public pool that day is 259

Step-by-step explanation:

Let x represent the number of children that swam in the public pool that day.

Let y represent the number of adult that swam in the public pool that day.

On a certain hot summer day, 481 people used the public swimming pool. This means that

x + y = 481

The daily prices are 1.25 for children and 2.25 for adults. The receipts for admission totaled to 86.25. This means that

1.25x + 2.25y = 860.25 - - - - - - - -1

Substituting x = 481 - y into equation 1, it becomes

1.25(481 - y) + 2.25y = 860.25

601.25 - 1.25y + 2.25y = 860.25

- 1.25y + 2.25y = 860.25 - 601.25

y = 259

Substituting y = 259 into x = 481 - y, it becomes

x = 481 - 259

x = 222

8 0

3 years ago

find the height of a cone with a diameter of 12m whose volume is 264m cubed. use 3.14 and round it to the nearest meter

Dima020 [189]

Answer:

775 42512

Step-by-step explanation:

4 0

3 years ago

If you get payed $11.75 an hour, how many hours do you have to work to have $169,000

Leni [432]

Answer:

you would have to work 37.5 hours and dont do it in one sitting i would die it not worth it if you have to do it one sitting XD lol

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

X=4y+7 2x-6y=12 System of equations using substitution

Sonja [21]

Answer:

x=3, y=-1

Step-by-step explanation:

We are already given an equation solved for x, making substitution much easier. We know x=4y+7, meaning we can put 4y+7 whenever we see x in the second equation

2x-6y=12

We substitute 4y+7 in place of x

2(4y+7)-6y=12

Now we only have one variable to work on, distribute the 2

8y+14-6y=12

Combine similar terms, 8y-6y=2y

2y+14=12

Subtract 14 from both sides

2y=-2

y=-1

Now we plug in -1 for y in the first equation to find x

x=4(-1)+7

x=-4+7

x=3

7 0

3 years ago

Andy currently runs a total of 12 miles per week. He plans to increase that number by 1.5 miles until he reaches a total of 26 m

sergejj [24]

Answer:

$1.5x+12=26$

Step-by-step explanation:

Let x be the number of weeks that it will take Andy to reach his goal.

We have been given that Andy currently runs a total of 12 miles per week. He plans to increase that number by 1.5 miles, so number of miles increased in x weeks will be 1.5x and total number of miles ran in x weeks will be 1.5x+12.

Since Andy wants to reach a total of 26 miles per week, so we will equate the total number of miles ran in x weeks with 26.

$1.5x+12=26$

Therefore, the equation $1.5x+12=26$ can be used to determine x, the number of weeks that it will take Andy to reach his goal.

5 0

3 years ago