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2 years ago

The graph plots four equations, A, B, C, and D:

Mathematics

2 answers:

asambeis [7]2 years ago

6 0

The best answer among the following choices that the question ask to find the pair of equations has (4,8) as its solution and the best answer among them is letter B. equation B and equation C. I hope you are satisfied with my answer and feel free to ask for more

Neko [114]2 years ago

4 0

it is B: Equation B and Equation C

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An oblique cone has a height equal to the diameter of the base. The volume of the cone is equal to 18π cubic units. An oblique c

Vilka [71]

Answer:

The radius of the cone is 3 units

Step-by-step explanation:

An oblique cone is a kind of slanted cone. It is a figure such that the tip of the cone is not directly over the center of the circular base of the cone.

While the method for calculating the area of an oblique and a right-circular cone is different, the method for calculating the volume is the same

Mathematically, the volume of an oblique cone = 1/3 * pi * r^2 * h

in this question, we have the height and the volume but we want to calculate the radius

substituting the value for the volume, the height and radius( radius is half diameter = 2x/2 = x) we have

18 pi = 1/3 * pi * x^2 * 2x

divide through by pi

18 = 1/3 * 2x * x^2

54 = 2x^3

divide both sides by 2

x^3 = 54/2

x^3 = 27

x = cube root of 27

x = 3 units

This is the length of the radius

6 0

2 years ago

Kim bought 12 boxes of drinks

salantis [7]

Answer:

The amount Kim sold each reduced price drink is $1.25 each

Step-by-step explanation:

The number of boxes of drinks Kim bought = 12 boxes

The amount Kim paid for each box = $15

The number of drinks in each box = 12 drinks

The amount Kim sild 3/4 of the drinks = $1.50 each

The amount Kim sold the remaining drinks = At a reduced rate

The amount of profit Kim made = 15%

Therefore, we have;

The total amount Kim bought the whole drinks = 12 × $15 = $180

The total number of drinks = 12 × 12 = 144 drinks

3/4 of the drinks = 3/4×144 = 108 drinks

The amount Kim sold the 108 drinks = 108 × $1.5 = $162

The amount of profit Kim made = 15%

Therefore;

(((The total amount Kim sold the whole drinks) - (The total amount Kim bought the whole drinks))/(The total amount Kim bought the whole drinks)) × 100 = Percentage profit

(((The total amount Kim sold the whole drinks) - ($180))/($180)) × 100 = 15%

The total amount Kim sold the whole drinks = 0.15×$180 + $180 = $207

The total number of the remainder of the drinks = 144 - 108 = 36 drinks

The amount Kim sold the remainder of the drinks = $207 - $162 = $45

The amount Kim sold each of the remainder of the drinks at reduced price = $45/36 = $1.25

Therefore, the amount Kim sold each reduced price drink = $1.25 each.

8 0

2 years ago

Jenna offers regular haircuts for $25 and haircuts plus coloring for $42.This weekend had a total of 24 clients and Jenna earned

shepuryov [24]

Answer:
Jenna did 16 regular haircuts
Jenna did 8 haircuts with coloring

Explanation:
Assume that the number of regular haircuts is x and the number of haircuts plus coloring is y

We are given that:
1- Jenna did a total of 24 clients, this means that:
x + y = 24
This can be rewritten as:
x = 24 - y ...............> equation I

2- regular haircuts cost $25, haircuts plus coloring cost $42 and she earned a total of $736. This means that:
25x + 42y = 736 ..........> equation II

Substitute with equation I in equation II and solve for y as follows:
25x + 42y = 736
25(24-y) + 42y = 736
600 - 25y + 42y = 736
17y = 136
y = 8

Substitute with y in equation I to get x as follows:
x = 24 - y
x = 24 - 8
x = 16

Based on the above:
Jenna did 16 regular haircuts
Jenna did 8 haircuts with coloring

Hope this helps :)

5 0

2 years ago

Which number line represents the solution to 2.5 – 1.2x < 6.5 – 3.2x? A number line from negative 5 to 5 in increments of 1.

Shkiper50 [21]

Answer:

C. 2 is less than or equal to x

Step-by-step explanation:

E d g e n u i t y 2020

5 0

2 years ago

Read 2 more answers

julia puts her stickers into arrays in an album. some of her stickers are animal stickers. there are a different number of stick

lina2011 [118]

The total number of stickers :

Page 1 : 28

Page 2 : 24

Page 3 : 72

Page 4 : 48

<h3>Further explanation </h3>

There are several properties in integer multiplication operations

1. closed property

Multiplication between integers will produce integers too

2. commutative property

a x b = b x a

3. associative property

ax (bxc) = (axb) xc

4. identity

ax1 = 1 x a = a

5. distributive property

* addition

ax (b + c) = axb + axc

* substraction

ax (b-c) = axb - axc

We can use facts to solve multiplication problems

for example :

6 x 7 = (5 x 7) + ( 1 x 7) = 42

we can break facts with 6 into 5s and 1s facts from multiplication above

julia puts her stickers into arrays in an album

From picture (attached) we can find the total number of stickers on each page with 1s,2s,3s and 5s facts

Page 1 : 4 x 7 = (2 x 7) + ( 2 x 7) = 14 + 14 = 28
Page 2 : 4 x 6 = (1 x 6) + (3 x 6) = 6 + 18 = 24
Page 3 : 8 x 9 = ( 3 x 9) + (5 x 9) = 27 + 45 = 72
Page 4 : 8 x 6 = (3 x 6) + (5 x 6) = 18 + 30 = 48

<h3>Learn more</h3>

the multiplicative identity property

brainly.com/question/4238982

Keywords : stickers, arrays, album, page, Julia

#LearnWithBrainly

5 0

2 years ago