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2 years ago

The sum of two numbers is 19 and their difference is 5. What are the two numbers?

Mathematics

2 answers:

Setler79 [48]2 years ago

7 0

Answer:

your answers will be 12 and 7

Step-by-step explanation:

a few points to help that are related to numbers

Sum of two odd numbers will always be even.

Sum of two even numbers will always be even.

Sum of one odd and one even number will always be odd.

Let the both numbers be first and second.

According to the problem statement:

first + second = 19

first – second = 5

Add both equations:

first + second + first – second = 19 + 5

2 * first = 24

first = 24 / 2

first = 12

So from this we get first = 12, put this value in any equation i.e.

first + second = 19 (Put the value of first in this equation)

12+ second = 19

second = 19 – 12

second = 7

So, the numbers are 12 and 7.

vovikov84 [41]2 years ago

5 0

Answer:

7 and 12

Step-by-step explanation:

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If the radius of the Cicular ground is 6m find, the area of ground #plz help

Fed [463]

Answer:

113.142857 m²

Step-by-step explanation:

As per the provide information in the given question, we have :

Radius of the circular ground = 6 m

We are asked to find the area of the ground.

Since, it is in the shape of circle, so we'll apply here the formula to find the area of the circular ground.

We know that,

>> Area of circle = πr

>> Area of the ground = $\sf \dfrac{22}{7}$ × 6 m × 6 m

>> Area of the ground = $\sf \dfrac{22}{7}$ × 36 m²

>> Area of the ground = $\sf \dfrac{792}{7}$ m²

>> Area of the ground = 113.142857 m²

$\therefore$ Therefore, area of the ground is 113.142857 m². 

3 0

3 years ago

Number 5 am stuck pls help

Norma-Jean [14]

Answer:

im going to be honest i havent done this since las year and so i dont remember the value of that line outside but i think its 70*

Step-by-step explanation:

reason is because the c is originally 180* but it has more of and angle so the angles obv increases and you can get the angle by multiplying 70*times 7x and divide by 3

i say 3 because of the amount of angles in a triangle and the line outside if i remember correctly is the "angles" of a triangle and that would be your answer

4 0

3 years ago

Susan has a 12-inch board for constructing a wooden chair.The directions say to use a board that is 29 centimeters long.Id her b

Advocard [28]

We have been given that Susan has a 12-inch board for constructing a wooden chair.The directions say to use a board that is 29 centimeters long. We are asked to determine if Susan's board is long enough to cut or not.

We know that 1 inch is equal to 2.54 cm.

Let us convert 12 inches into cm by multiplying 12 by 2.54.

$12\text{ inches}=12\times 2.54\text{ cm}$