How much is 50% of 10 liters of milk?
How far is 50% of a 2,000-kilometer trip?
How long is 50% of a 24-hour day?
How can you find 50% of any number?

Given:

I'm 3 times younger than my mom but 3 times older than my younger brother.

Mom is older than my younger brother by 40 years.

To find:

How old am I.

Solution:

Let x be the age of the younger brother.

I'm 3 times older than my younger brother. So, my age is 3x.

I'm 3 times younger than my mom. So, she is 3 times older than me and her are is 3(3x)=9x.

The difference between the age mother and younger brother is 40 years.

[tex]9x-x=40[/tex]

[tex]8x=40[/tex]

Divide both sides by 8.

[tex]x=\dfrac{40}{8}[/tex]

[tex]x=5[/tex]

Now,

My age [tex]=3x[/tex]

            [tex]=3(5)[/tex]

            [tex]=15[/tex]

Therefore, I'm 15 years old.

Answer:

It is 21 cm long

Step-by-step explanation:

1/8 of 24 is 3, so you would subtract 3 from 24. 3*8=24.

Answer:

x=0 or x=3

Step-by-step explanation:

Since it is a geometric sequence, that means term divided by previous term is the same number. Let's call that number, r.

That means we have:

(3x+1)/(2x-1)=r

(7x-1)/(3x+1)=r

Since both of the ratios are the same, then we have

(3x+1)/(2x-1)=(7x-1)/(3x+1)

Cross multiply:

(3x+1)(3x+1)=(2x-1)(7x-1)

Distribute:

9x^2+3x+3x+1=14x^2-2x-7x+1

Combine like terms:

9x^2+6x+1=14x^2-9x+1

Subtract 1 on both sides:

9x^2+6x=14x^2-9x

Subtract 14x^2 on both sides

Add 9x on both sides

-5x^2+15x=0

Factor -5x:

-5x(x-3)=0

-5x=0 when x=0 since -5(0)=0

x-3=0 when x=3 since 3-3=0

Answer:

your answer will be a= 23.2

Step-by-step explanation:

hope this helps u have a great day ^_^

Answer:

A= 23.2

Step-by-step explanation:

[tex]a^2=b^2+c^2-2bc CosA[/tex]

[tex]a^2=11^2+19^2-2(11)(19)Cos 98[/tex]

[tex]a^2=121+361-418cos98[/tex]

[tex]a^2=121+361-(-58.17)[/tex]

[tex]\sqrt{a^2} =\sqrt{540.17}[/tex]

[tex]a=23.2[/tex]

[tex]-----------[/tex]

hope it helps..

have a great day!!

Answer:

x: # of candles

y: # of flower arrangements

Inequality 1: x + y ≤ 200

Inequality 2: 5x + 6y ≥ $500

Step-by-step explanation:

Answer:

Using PEMDAS, the answer is 6

Step-by-step explanation:

16 divided by 4 is 4

4 times 3 is 12

12-6 equals 6

This is correct using PEMDAS

Brainliest?

Answer:

i dont understand

Step-by-step explanation:

Answer:

do by yourself don't know anything

Step-by-step explanation:

9514 1404 393

Answer:

  938 feet

Step-by-step explanation:

The diagonal is the hypotenuse of a right triangle with side lengths 900 ft and 264 ft. The Pythagorean theorem tells you how to compute its length.

  d² = 900² +264² = 879,696

  d = √879,696 ≈ 937.92 . . . . feet

They would walk about 938 feet.

Answer:

2790

Step-by-step explanation:

38/100 * 4500 = 1710 get less than eight hours of sleep

4500 - 1710 = 2790 students

Answer:

Try A

Step-by-step explanation:

Answer:

120

Step-by-step explanation:

A=LxH

So 15x8=120

Answer:

Step-by-step explanation:

7C10 = 10!/(7!)(10-7)!

7C10 = 10!/(7!)(3!)

7C10 = (10 x 9 x 8 x 7)/(7 x 6 x 5)(6)

7C10 = (10 x 9 x 8)/6

7C10 = 720/6

7C10 = 120

Answer: 120 ways

Answer:

Surface area : 143.1

Step-by-step explanation:

Ok so first,

Bottom : 35.1 ft

Front : 36

Right side : 36

Left side : 36

Answer:

Number of Solutions

Most linear systems you will encounter will have exactly one solution. However, it is possible that there are no solutions, or infinitely many. (It is not possible that there are exactly two solutions.) The word unique in this context means there is a solution, and it's the only one.

Step-by-step explanation:

Hope it helps!

is (24, 7, 25) a Pythagorean triple?

Step-by-step explanation:

No

Answer:

Vertex form pf y = x^2 + 12x + 36.

Step-by-step explanation:

y = (x + 6)^2

x-coordinate of vertex:

(x + 6) = 0--> x = - 6

y-coordinate of vertex: y = y(-6) = 36 - 72 + 36 = 0

Vertex form: y = (x + 6)^2

Answer:

2

Step-by-step explanation:

X=x 2-12x+36

X+X+12x=38

14x=38

X=38/14

X=2

Answer:

To graph a linear equation in slope-intercept form, we can use the information given by that form. For example, y=2x+3 tells us that the slope of the line is 2 and the y-intercept is at (0,3). This gives us one point the line goes through, and the direction we should continue from that point to draw the entire line.

Step-by-step explanation:

Answer:

Step-by-step explanation:

how many shapes of size A are in B ?  

I counted 9.5

then just multiply the count * the size of A

got it?

Step-by-step explanation:

area of shape A = 3cm²

number of A shape in shape B = 9 and half

1 shape A = 3cm²

9 shape A = 3×9 = 27cm²

1 half shape A = 3 ÷ 2 = 1.5cm²

area of shape B = 27cm² + 1.5cm² = 28.5cm²

Answer:

3 shells

Step-by-step explanation:

1st shell: 2 electrons

2nd shell: 8 electrons

3rd shell: 6 electrons

Answer:

503 or C

Step-by-step explanation:

10^2= 10 X 10 = 100

100 x 5 = 500

500 + 3 =503

Answer:

C) 0.066...

Step-by-step explanation:

1/15 = 0.066...

You could eliminate B and C as 15 (numerator from question) is not a multiple of 10. You can eliminate A as the numerator of 15 from the question is larger than 10 and will result in a number less than 0.1.

Answer:

1

Step-by-step explanation:

Answer:

6.25% I think

Step-by-step explanation:

If Kiara sells car at $7500 and it is of $8000 then she is having a loss of 6.25%.

A percentage is the number or ratio which is expressed as a fraction of 100.

We have been given the buying value=$8000

Selling value=$7500

Loss=Buying value- selling value

=8000-7500

=$500

Percentage of loss=loss/ buying value*100

=500/8000*100

=6.25%

If we want to check our answer then we can multiply our percentage with the buying value.

=8000*6.25%

=500

Hence if Kiara sells car at $7500 and it is of $8000 then she is having a loss of 6.25%.

Learn more about percentage at https://brainly.com/question/24304697

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