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1 year ago

A boy gets #2.00 per week as pocket money. His sister gets only #1.60 per week

Mathematics

1 answer:

Norma-Jean [14]1 year ago

6 0

The Ratio of the boy's allowance to his sister's is 5 : 4.

The new Ratio is 1 : 10000.

<h3>What is definition of ratio?</h3>

The quotient of two mathematical expressions, 1a. b: the proportion between two or more items in terms of quantity, amount, or size.
What does the arithmetic term "ratio" mean?
An ordered pair of numbers a and b, represented as a / b, is a ratio if b is not equal to 0. A proportion is an equation that sets two ratios at the same value.
For instance, if there is 1 boy and 3 girls, you may express the ratio as 1: 3 (there are 3 girls for every boy), meaning that there are 1 in 4 boys and 3 in 4 girls.

To learn more about :Ratio

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Solve the linear equation: <br><br> <img src="https://tex.z-dn.net/?f=4%5E%7B2x%2B7%7D%20%3D%208%5E%7B2x-3%7D" id="TexFormula1"

g100num [7]

Answer:

x = 11.5

Step-by-step explanation:

Taking the logarithm base 2 will transform this to a linear equation.

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

0 = 3(2x -3) -2(2x +7) . . . . subtract the left side

0 = 2x -23 . . . . . . . . . . . . . simplify

0 = x - 23/2 . . . . . . . . . . . . divide by 2

11.5 = x . . . . . . . . . . . . . . . . add 11.5

The solution is x = 23/2 = 11.5.

_____

<em>Check</em>

This value of x makes the equation become ...

4^(2·23/2 +7) = 8^(2·23/2 -3)

4^30 = 8^20 . . . . . true

8 0

3 years ago

HELP PLEASE ILL GIVE BRAINLISTTTT!!!

Ber [7]

Answer:

Ok I’ll give a simple equation that your teacher probably won’t accept and one that your teacher will accept

Teacher accept: x-45=122

Not accept but way easier: 122+45=x

ALSO The answer to x: 167

Step-by-step explanation:

Heres the loop hole, they asked for 2 sentences but never declared the length of each sentence.

Explanation:

So we know that grace lost 45 pounds and at the end she weighs 122.

We don’t now what the beginning weight so we can make an equation like x-45=122 where x represents her before weight and the subtract 45 is when she lost that much and the final results of 122, if solved You’ll get her begginisng weight, 167.

8 0

3 years ago

Your school’s science club is making gift baskets to sell. The club has 350 individually wrapped soaps to put into the gift bask

Rama09 [41]

Answer:

116

Step-by-step explanation:

$350=116\times 3+2$ (2 soaps left-over)

8 0

3 years ago

Read 2 more answers

Ax+by=c solving for y

german

Answer:

$ax + by = c \\ by = c - ax \\ \\ y = \frac{c - ax}{b} \\ \\ y = \frac{c}{b} - \frac{ax}{b}$

I hope I helped you^_^

8 0

3 years ago

Read 2 more answers

A dinner table is a perfect circle with a diameter of 8 feet. With dinner plates that each a diameter of exactly 1 foot, how muc

Harlamova29_29 [7]

The area of the tablecloth showing is approximately 45.55 square feet

The space occupied by any two-dimensional figure in a plane is called the area. The space occupied by the circle in a two-dimensional plane is called as the area of the circle.

It is given that:-

The diameter of the dinner table, D = 8 feet

The diameter of each plate, d = 1 feet

The number of people at the dinner table = 6 people

The number of plates = 6 plates

The area of the table cloth, A₁ = π·D²/4

∴ A₁ = π × 8²/4

The area covered by the 6 plates, A₂ = 6·π·d²/4

A₂ = 6 × π × 1²/4

Let 'A' represent the area of the tablecloth showing when the table is set for six people, we have;

A = A₁ - A₂

∴ A = π × 8²/4 - 6 × π × 1²/4 ≈ 45.55 ft.²

Therefore the area of the tablecloth showing when the table is set for six people, A ≈ 45.55 ft.²

To know more about an area follow

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8 0

2 years ago