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3 years ago

Mrs. Williams is ordering designer cupcakes for her wedding.

Mathematics

1 answer:

kotegsom [21]3 years ago

6 0

Answer:

Step-by-step explanation:

A would be the anwser

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Two different questions.. please try to answer both if possible!!!

boyakko [2]

Answer: A

Step-by-step explanation:

f(x) = -5x - 4 ⇒ y = -5x - 4 switch the x's and y's and solve for y

x = -5y - 4

+4 +4

x + 4 = -5y

$\frac{x+4}{-5} = \frac{-5y}{-5}$

$-\frac{x+4}{5} = y$

$\frac{-x-4}{5} = y$

$\frac{-1}{5}x - \frac{4}{5} = y$

***********************************************************

The top line of the second question is cut off so cannot help you without knowing what the restriction is on v(x).

3 0

4 years ago

Angela earned $20.40 in 3 hours. How much money will she make in 5 hours?

vagabundo [1.1K]

Answer:

$34

Step-by-step explanation:

5/3 of 20.4= 34, so Angela will make $34 in 5 hours.

7 0

3 years ago

If b+3/7 = 2/5 then which of the following is true?5b + 15 = 14 b + 3 = 14 5b + 3 = 14 b + 15 = 14

Roman55 [17]

Answer:

The first one is true. 5b+15=14

Step-by-step explanation:

(b+3)/7= 2/5

After cross-multiplication:

5(b+3)=2*7

5b+15=14

5 0

4 years ago

Geometry question answer "c" is incorrect.

Black_prince [1.1K]

I also believe B is the answer...i belive :)

5 0

3 years ago

The cost of a circular table is directly proportional to the square of the radius. A circular table with a radius of 50cm costs

Lana71 [14]

Answer:

£135 is the correct answer.

Step-by-step explanation:

Let C be the cost of table.

And let R be the radius of table.

Cost of table is directly proportional to square of radius.

As per question statement:

$C\propto R^{2}$ or

$C=a\times R^2 ....... (1)$

where $a$ is the constant to remove the $\propto sign$ .

It is given that

$C_1 =$ £60 and $R_1 = 50\ cm$

$C_2 = ?$ when $R_2= 75\ cm$

Putting the values of $C_1$ and $R_1$ in equation (1):

$60=a \times 50^2 ....... (2)$

Putting the values of $C_2$ and $R_2$ in equation (1):

$C_2=a \times 75^2 ....... (3)$

Dividing equation (2) by (3):

$\dfrac{60}{C_2}= \dfrac{a \times 50^2}{a \times 75^2}\\\Rightarrow \dfrac{60}{C_2}= \dfrac{50^2}{75^2}\\\Rightarrow \dfrac{60}{C_2}= \dfrac{2^2}{3^2}\\\Rightarrow \dfrac{60}{C_2}= \dfrac{4}{9}\\\Rightarrow C_2 = 15 \times 9 \\\Rightarrow C_2 = 135$

So, £135 is the correct answer.

7 0

3 years ago