All categories

3 years ago

Pls help me with this problem i will give brainly.

Mathematics

2 answers:

Furkat [3]3 years ago

7 0

Answer: Give the guy above some points, I'm just trying to help. [I am not trying to steal points!]

Step-by-step explanation:

We are given that:

variables x and y vary directly, this means that:

y = kx where k is the constant of proportionality

Now, we are also given that:

y = 45 at x = 40.

We will use these values and substitute in the above relation to get k as follows:

y = kx

45 = 40k

k = 45/40 = 9/8 = 1.125

Based on the above calculations, the equation that relates x and y is:

y = 1.125x

siniylev [52]3 years ago

3 0

Answer:

We are given that:

variables x and y vary directly, this means that:

y = kx where k is the constant of proportionality

Now, we are also given that:

y = 45 at x = 40.

We will use these values and substitute in the above relation to get k as follows:

y = kx

45 = 40k

k = 45/40 = 9/8 = 1.125

Based on the above calculations, the equation that relates x and y is:

y = 1.125x

Step-by-step explanation:

You might be interested in

A regular computer screen has a area of A square inches. The width of the computer screen is 7 inches. Which equation represents

mario62 [17]

Answer:

7 square inches hope this helps brainlest plzzz

Step-by-step explanation:

8 0

3 years ago

The New England Revolutions are having a charity soccer event for which tickets cost $18 per person. However, the ticket agency

julia-pushkina [17]

Let as consider, we need to find the fixed fee.

Given:

Cost of each ticket = $18

Number of tickets = 5

Total cost = $93

To find:

The fixed fee.

Solution:

Let x be the fixed fee..

Cost of 1 ticket = $18

Cost of 5 ticket = $(5 × 18)

= $90

Total cost 5 tickets = Fixed fee + Cost of 5 tickets

$93=x+90$

$93-90=x$

$3=x$

Therefore, the fixed fee is $3.

4 0

4 years ago

I need help asap, please and thank you :))

Troyanec [42]

Answer:

What is the value of x?

<em>x = 40 degrees.</em>

What is the measure of angle AFE?

<em>Angle AFE = 140 degrees</em>

What is the measure of angle BFD?

<em>Angle BFD = 140 degrees.</em>

Step-by-step explanation:

Angle AFC is 90 degrees.

To find angle x, we have to subtract angle BFC.

90 - 50 = 40 degrees.

Line BFE is 180 degrees.

To find angle AFE, we have to subtract angle x from 180 degrees.

We have solved x already.

180 - 40 = 140 degrees.

Angle BFD is just 90 degrees plus 50 degrees.

90 + 50 = 140 degrees.

6 0

3 years ago

Read 2 more answers

The area, in square units, of a rectangle is represented by the expression (x-4) (x+4) Which expression represents an equivalent

geniusboy [140]

Answer:

x^2-16

Step-by-step explanation:

Foil Method

(x*x+4x-4x-16)

x^2-16

3 0

3 years ago

A power company calculates a person's monthly bill from the number of

lesya692 [45]

The bill for a person who uses 560 kWh in a month is $74. Therefore, option D is the correct answer.

The given functions are

b(x) = 0.15x; x ≤ 360

b(x) = 0.10(x - 360) + 54; x > 360

<h3>What is the function?</h3>

Functions are the fundamental part of calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x. Mapping or transformation is used to denote a function in math. These functions are usually denoted by letters such as f, g, and h.

For a person who uses 560 kWh, it means that:

x > 360

So, we use the following function to determine the bill

b(x) = 0.10(x - 360) + 54

Substitute 560 for x

b(560) = 0.10(560 - 360) + 54

⇒b(560) = 74

Hence, the bill for a person who uses 560 kWh in a month is $74. Therefore, option D is the correct answer.