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2 years ago

11

Evelyn was 9 when her brother was born. Which equation tells you how to find Evelyn's age if you know victor's age? E=Evelyn V=V

ictor
A. e + v=9
B. e = v - 9
C. e = v + 9
D. v = e + 9

2 answers:

Tamiku [17]2 years ago

6 0

Answer:

why dont you try

C.e=v+9

it is the correct girl

Step-by-step explanation:

thank me later

Rina8888 [55]2 years ago

3 0

C. e = v + 9

This is the answer

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Please show working out thanks

IgorLugansk [536]

Answer:

10m x 15m

Step-by-step explanation:

You are given some information.

1. The area of the garden: A₁ = 150m²

2. The area of the path: A₂ = 186m²

3. The width of the path: 3m

If the garden has width w and length l, the area of the garden is:

(1) A₁ = l * w

The area of the path is given by:

(2) A₂ = 3l + 3l + 3w + 3w + 4*3*3 = 6l + 6w + 36

Multiplying (2) with l gives:

(3) A₂l = 6l² + 6lw + 36l

Replacing l*w in (3) with A₁ from (1):

(4) A₂l = 6l² + 6A₁ + 36l

Combining:

(5) 6l² + (36 - A₂)l +6A₁ = 0

Simplifying:

(6) l² - 25l + 150 = 0

This equation can be factored:

(7) (l - 10)*(l - 15) = 0

Solving for l we get 2 solutions:

l₁ = 10, l₂ = 15

Using (1) to find w:

w₁ = 15, w₂ = 10

The two solutions are equivalent. The garden has dimensions 10m and 15m.

3 0

2 years ago

daniel's basketball team won 23 games and lost 8 games. Write the ratio of wins to losses in simplest form.

Soloha48 [4]

23:8 is the simplest form. However, you can put 5.75:2 or even 2.86/1 if you are looking for the absolute simplest

3 0

2 years ago

Isobel has 12 flowers. She wants to give an equal number of flowers to each of her 3 aunts. Which division problem could be used

NikAS [45]

The answer is 12 ÷ 3

Step-by-step explanation:

12 ÷ 3

4

7 0

3 years ago

55. If 3x = 4y, the value of (x + y)^2 : (x - y)^2 is:<br>

ladessa [460]

Answer:

$\large\boxed{(x+y)^2:(x-y)^2=49}$

Step-by-step explanation:

$3x=4y\qquad\text{subtract}\ 3y\ \text{from both sides}\\\\3x-3y=y\qquad\text{distributive}\\\\3(x-y)=y\qquad\text{divide both sides by 3}\\\\x-y=\dfrac{y}{3}\qquad(*)\\------------------\\3x=4y\qquad\text{add}\ 3y\ \text{to both sides}\\\\3x+3y=7y\qquad\text{distributive}\\\\3(x+y)=7y\qquad\text{divide both sides by 3}\\\\x+y=\dfrac{7y}{3}\qquad(**)\\------------------$

$(x+y)^2:(x-y)^2=\dfrac{(x+y)^2}{(x-y)^2}\qquad\text{use}\ \left(\dfrac{a}{b}\right)^n=\dfrac{a^n}{b^n}\\\\=\left(\dfrac{x+y}{x-y}\right)^2\qquad\text{substitute}\ (*)\ \text{and}\ (**)\\\\=\left(\dfrac{\frac{7y}{3}}{\frac{y}{3}}\right)^2=\left(\dfrac{7y}{3}\cdot\dfrac{3}{y}\right)^2\qquad\text{cancel}\ 3\ \text{and}\ y\\\\=(7)^2=49$

5 0

2 years ago

What is the value of the expression 2^2+6^2÷2^2

Studentka2010 [4]

Answer:

13

Step-by-step explanation:

$2^{2} + 6^{2} / 2^{2} = 4+ 36/4 = 4 +9 = 13$

0r

4 + (6/2)^2 = 4+ 3^2 = 4+9 = 13

3 0

2 years ago