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3 years ago

Help me with this. i am not smart ..

Mathematics

2 answers:

Yuki888 [10]3 years ago

7 0

Answer:

16. 1.7

Step-by-step explanation:

Divide price by quantity

marta [7]3 years ago

3 0

I’m not that smart... but let me use first as example.. 240 divided by 4

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the equation y = 1/5x represents a proportional relationship. explain how you can tell the relationship is proportional from the

Pachacha [2.7K]

Answer:

Yes, y = $\frac{1}{5}$ x represents a proportional relationship and the constant of proportionality is $\frac{1}{5}$

Step-by-step explanation:

<em>The Proportional is a relationship between two quantity one of them equals the product of the other and a constant, where this constant called the constant of proportionality </em>

If x and y are proportion, then y = k x, where k is the constant of proportionality

The proportional relationship represented graphically by a line passing through the origin point (0, 0)

Let us solve the question

∵ y = $\frac{1}{5}$ x

→ It the same as the form of the proportional equation above

∵ $\frac{1}{5}$ is a constant

∴ y is the product of x and constant

∴ y = $\frac{1}{5}$ x represents a proportional relationship

Substitute x by 0 to find y and show it represented by a line passing through the origin

∵ x = 0

∴ y = $\frac{1}{5}$ (0) = 0

→ That means point (0, 0) lies on the line which represents the equation

∴ The line which represents this relation is passing through the origin

∴ y = $\frac{1}{5}$ x represents a proportional relationship

∵ y = kx, k is the constant of proportionality

∵ y = $\frac{1}{5}$ x

∴ k = $\frac{1}{5}$

∴ The constant of proportionality is $\frac{1}{5}$

5 0

4 years ago

What is The gcf of 13 and 7

algol13

Answer:

Step-by-step explanation:

6 0

3 years ago

Play help me I need Mathematics

Nataly [62]

$18 + $10 = $28
1/3 + 1/3 = 2/3
3/3 - 2/3 = 1/3
$28 = 1/3
Answer is C. $28

5 0

3 years ago

. Which of the following is the rational exponent expression of fifth root of 7 n?. . A. 5n7. . B. (7n)5. . C. 7 times n to the

Whitepunk [10]

<span>the nth root of a quantity is the same as the quantity raised to the 1/nth power so a square root is the same as raising to the 1/2 power a cube root is the same as raising to the 1/3 power
option D is right hope this helps</span>

4 0

4 years ago

Read 2 more answers

The officers of a high school senior class are planning to rent buses and vans for a class trip. Each bus can transport student

solniwko [45]

Answer:

We require 2 buses and 18 vans for minimal cost

The minimal transportation costs $4560

Step-by-step explanation:

Let x represents the no. of buses and y represents the no. of vans

We are given that Each bus can transport 63 students, requires 2 chaperones, and costs $1200 to rent. Each van can transport 7 students, requires 1 chaperone, and costs $120 to rent.

We are also given that the officers must plan to accommodate at least 252 students.

So, $63x+7y \geq 252$

We are also given that the officers must plan to use at most 22 chaperones.

So, $2x+y \leq 22$

Rent of 1 bus = $1200

Rent of 1 van = $120

So, Cost = 1200x+120y

Objective function : 1200x+120y

Plot the lines on graph

$63x+7y \geq 252$ ---- Blue region

$2x+y \leq 22$ ----- Green region

So, The points of the feasible region are (4,0),(2,18) and (11,0)

At (4,0)

Transportation cost : 1200x+120y=1200(4)+120(0)=4800

At (2,18)

Transportation cost : 1200x+120y=1200(2)+120(18)=4560

At (11,0)

Transportation cost : 1200x+120y=1200(11)+120(0)=13200

So, The cost is minimum at (2,18)

So, We require 2 buses and 18 vans for minimal cost

Hence the minimal transportation costs $4560

4 0

4 years ago