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2 years ago

In math what are 3 ways numbers are related

Mathematics

1 answer:

zheka24 [161]2 years ago

5 0

Answer:Recognise three numbers that are related through the operations of addition and subtraction.

Recognise that there are two related addition and two subtraction equations in a 'family of facts'.

Write and read sets of related addition and subtraction equations.

Step-by-step explanation:that is all

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2a + b = 3 and a - 3b = 5

vfiekz [6]

Answer:

a= 2 b=-1

Step-by-step explanation:

a-3b=5

or, a= 5+3b_(i)

substituting value of a in 2a+b=3,

2×(5+3b)+b=3

or, 10+6b+b=3

or, 7b=3-10

or, 7b=-7

b= -1

substituting value of b in(i),

a=5+3b

=5+3×(-1)

=5-3

6 0

3 years ago

Which of the following is irrational?

monitta

Answer:

√6 is irrational.

Step-by-step explanation:

The square roots of the others are rational

sqrt 0.16 = 0.4

sqrt 900 = 30

sqrt25 = 6.

8 0

2 years ago

haily brought m pencils for $0.50 each and n pens for 0.75 each. She spent 0.5m+0.75n dollars. what does the term 0.75n represen

SpyIntel [72]

Answer:

It represents n pens bought

6 0

1 year ago

How do you factor 50x - 32x^3

adoni [48]

50x - 32x^3
= 2x (25 - 16x^2)

hope that helps

8 0

3 years ago

Please help me with this homework question. No silly answers please and no bots! I will mark brainliest to whoever gets all them

MatroZZZ [7]

Answer:

The formula for the area of the triangle is:

$\displaystyle A=24x^2$

When x = 3, the area is 216 square centimeters.

When x = 2.4, the area is 138.24 square centimeters.

And when x = 5, the hypotenuse of the triangle is 50 centimeters.

Step-by-step explanation:

We are given a right triangle with a height of 8x and a base of 6x.

The area of a triangle is given by the formula:

$\displaystyle A=\frac{1}{2}bh$

So, by substitution:

$\displaystyle A=\frac{1}{2}(8x)(6x)=24x^2$

When x = 3, the area will be:

$\displaystyle A(3)=24(3)^2=216\text{ cm}^2$

And when x = 2.4, the area will be:

$A(2.4)=24(2.4)^2=138.24\text{ cm}^2$

When x = 5, the height will be 8(5) = 40 cm and the base will be 6(5) = 30 cm.

By the Pythagorean Theorem:

$a^2+b^2=c^2$

So:

$(40)^2+(30)^2=c^2$

The hypotenuse will be:

$c=\sqrt{1600+900}=\sqrt{2500}=50\text{ cm}$

3 0

2 years ago