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2 years ago

A number added to 5 is the same as twice the number. find the number

Mathematics

2 answers:

victus00 [196]2 years ago

7 0

Answer:

Step-by-step explanation:

5 + 5 = 10

5 x 2 = 10

hope this helps

zvonat [6]2 years ago

7 0

As per given conditions,

$x + 5 = 2x$

Now solve as normally,

$= > x - 2x = - 5$

$= > - x = - 5$

As negative symbol is present in both sides, they become cancelled

So,

$x = 5$

Hence, the number is 5

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15. 3x – 4y = -1 5x + 2y = 7

never [62]

Answer:

x = 1, y = 1

Step-by-step explanation:

3x - 4y = -1

5x + 2y = 7

If we multiply the whole second equation by 2, we get:

10x + 4y = 14

Adding this to the first equation:

10x + 4y + 3x - 4y = 14 - 1

13x = 13

x = 1

Applying this to the second equation:

5 (1) + 2y = 7

2y = 2

y = 1

8 0

3 years ago

How to figure out 5 - 0.53

sveta [45]

the answer would be 4.47

because every whole number is made out of 100 small parts.

So that would be like 400-53 which is 447 and then add the decimal point. That would make it 4.47

4 0

3 years ago

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VladimirAG [237]

Q: What is the equation of the exponential curve that passes through the points (0,3) and (5, 96)?

Answer: y=3 (2)x

4 0

3 years ago

Which of the following is a sine of a in the right triangle below

seraphim [82]

Answer:

$\frac{5}{13}$

Step-by-step explanation:

sine of A = $\frac{opposite}{hypotenuse}$

opposite = 5

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6 0

3 years ago

Find the area of the circle. Use 3.14 for it. d = 6 ft A = [?] ft2 A=Tr2

Sedaia [141]

Answer:

28.26 ft^2

Step-by-step explanation:

Area of a circle is calculated using the following formula :

πr^2 (r: radius, and π is given as3.14)

the diameter is given as 6 and radius is equal to half of it so :

(3.14)*3^2 = 28.26 ft^2

3 0

3 years ago