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3 years ago

Why do math exist in school?

Mathematics

2 answers:

EleoNora [17]3 years ago

5 0

Answer: I have no idea

Step-by-step explanation:

AysviL [449]3 years ago

5 0

Answer:

Purpose of learning mathematics

To many students, the purpose of math is to learn a skill that leads to a grade on a report card. ... There are people who would say that math teaches logic and problem solving, and therein lies its true purpose. There are probably many others, but for myself and what I want my students to see, it is none of these.

Step-by-step explanation:

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2x+y=21;y=-2x+21 please hurry I need this straight away

Nastasia [14]

Step-by-step explanation:

2x + y = 21

Solving

2x + y = 21

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-1y' to each side of the equation.

2x + y + -1y = 21 + -1y

Combine like terms: y + -1y = 0

2x + 0 = 21 + -1y

2x = 21 + -1y

Divide each side by '2'.

x = 10.5 + -0.5y

Simplifying

x = 10.5 + -0.5y

7 0

3 years ago

What ratios arr proportional..? 3/4: 4/8 3/4:6/8 3/4:7/8

zloy xaker [14]

Answer:

the 3/4:6/8. Hope that helped

8 0

3 years ago

Helppppppp pleaseeee

yulyashka [42]

As these two angles are vertically opposite angles, they are equal:
14x+7=8x+15
14x-8x=15-7
6x=8
x=8/6
x=4/3 or 1.34

3 0

3 years ago

Saturn's rings extend to about 120,000 kilometers above Saturn's equator. Saturn's diameter at its equator is also about 120,000

Allisa [31]

Answer:

1130400 km

Step-by-step explanation:

We know the formula for circumference of a circle:

Circumference = $2\pi r$

So we need the radius of Saturn ring to calculate its circumference.

We are given Saturn's diamter which is 120,000km; and know that Saturn's ring extends for about 120,000 km from the circumference of the Saturn.

Therefore, the radius of Saturn's ring will be 120000 km plus half of the diameter of Saturn:

Radius of Saturn's ring = 120000 + (120000/2) = 180000 km

Circumference of Saturn's rings = 2 x 3.14 x 180000 = 1130400 km

3 0

4 years ago

What is the name for numbers that are greater than zero

grigory [225]

Those are positive numbers.

Those that are less than zero are called negative numbers.

Zero itself can be considered both, or neither.

3 0

3 years ago

Why do math exist in school?​

Why do math exist in school?