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Amiraneli [1.4K]
3 years ago
13

What is the average of two opposite numbers?

Mathematics
1 answer:
Kryger [21]3 years ago
8 0

Answer:

0

Step-by-step explanation:

So lets imagine x as our number

Let's make an equation:

Average=\frac{x-x}{2} \\Average=\frac{o}{2} \\Average=0

So, This would mean that the average of two opposite numbers is always 0

Hope this helps!

Stay Safe!

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Pls help!!!!!!!!!!!!!!
DiKsa [7]

Answer:

HMmMm I think the answer is yes

7 0
3 years ago
How many 1/2s are in 4?​
WARRIOR [948]

Answer:

8

Step-by-step explanation:

5 0
3 years ago
A trapezoid has an area of 20 cm2 and a height z cm. The lengths of the parallel sides are (2z + 3) cm and (6z – 1) cm. Find the
Brums [2.3K]

Answer: 2.11cm

Step-by-step explanation:

Given the following :

The lengths of the parallel sides are (2z + 3) cm and (6z – 1) cm

The area of trapezoid is calculated using the formula:

1/2(a + b) × h

Where ;

a = Length of side 1

b = length of side 2

h = height

Take a = (2z + 3) and b = (6z – 1), h = z

Therefore ;

1/2 (2z + 3 + 6z - 1) × z

Opening the bracket

(z + 1.5 + 3z - 0.5) × z

(4z + 1 ) × z = 20cm^2

4z^2 + z = 20cm^2

Using Quadratic formula:

4z^2 + z - 20 = 0

a = 4, b = 1, c = - 20

(-b±√b^2 -4ac) / 2a

Z = 2.11 or - 2.364

z cannot be negative, therefore,

Z = 2.11 cm

6 0
3 years ago
How do you solve 10+5(3x-4)=2x+7
Taya2010 [7]

Answer:

x=1\dfrac{4}{13}

Step-by-step explanation:

Given the equation

10+5(3x-4)=2x+7

Use distributive property:

10+5\cdot 3x-5\cdot 4=2x+7\\ \\10+15x-20=2x+7

Use commutative property to rewrite the equation:

15x+10-20=2x+7

15x-10=2x+7

Add 10 th both sides:

15x-10+10=2x+7+10\\ \\15x=2x+17

Subtract 2x:

15x-2x=2x+17-2x\\ \\13x=17

Divide by 13:

x=\dfrac{17}{13}=1\dfrac{4}{13}

4 0
3 years ago
What value of x satisfies the equation 7x+1=2.4 ?
yuradex [85]
5.6 because    7=1=8          so    8-2.4=5.6

hope this helped please leave a thank you
3 0
3 years ago
Read 2 more answers
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