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3 years ago

15

Right now Seth's age is 4/5 the age of his brother Eric. Twenty-one years ago, Eric was twice as old as Seth. What are their age

s now?

1 answer:

ikadub [295]3 years ago

8 0

The answer to this question is 19

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Zahra wants the equation below to have an infinite number of solutions when the missing number is placed in the box.

zhannawk [14.2K]

The answer is -3.

To find this, we simply have to solve the equation and leave only the blank and the parenthesis that it is with on the right side. Then we can divide by the parenthesis. The work for this is done for you below.

____(x - 3) + 2x = -(x - 5) + 4 ----> Distribute the -1 to the parenthesis.

____(x + 3) + 2x = -x + 5 + 4 ----> Simplify

____(x + 3) + 2x = -x + 9 ----> Subtract 2x from both sides

____(x + 3) = -3x + 9 ------> Divide both sides by x + 3

____ = -3.

7 0

3 years ago

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2/3 of the cards are pitchers and 3/4 of the remainder are outfielders. If the 3 cards left over are infielders, how many cards

snow_tiger [21]

Answer:

2/3 + 3/4 = 1 52/125. That plus 3 is 4 / 52/125. Sorry if this isn't the right answer.

6 0

3 years ago

What is the first step to solve this equation?<br> 4x +1 = 2x – 5

eimsori [14]

I think it’s subtract 2x from both sides

8 0

3 years ago

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Can anyone please explain? Need some help :)

DedPeter [7]

Answer:

93.5 square units

Step-by-step explanation:

Diameter of the Circle = 12 Units

Therefore:

Radius of the Circle = 12/2 =6 Units

Since the hexagon is regular, it consists of 6 equilateral triangles of side length 6 units.

Area of the Hexagon = 6 X Area of one equilateral triangle

Area of an equilateral triangle of side length s = $\dfrac{\sqrt{3} }{4}s^2$

Side Length, s=6 Units

$\text{Therefore, the area of one equilateral triangle =}\dfrac{\sqrt{3} }{4}\times 6^2\\\\=9\sqrt{3} $ square units$

Area of the Hexagon

$= 6 X 9\sqrt{3} \\=93.5$ square units (to the nearest tenth)$

7 0

3 years ago

What is 30 less than 4 times a number is equal to 14

Genrish500 [490]

The answer is x=11
4x-30=14
You add 30 to each side=4x=44
Then you divide 44 by 4 which=11

4 0

3 years ago