All categories

2 years ago

20 points

Mathematics

1 answer:

morpeh [17]2 years ago

7 0

Answer:

Frist 60

Second: 24.50

Step-by-step explanation:

You might be interested in

1 What is the volume of a cube of side 1000 mm?

aniked [119]

Answer:

1000000000 ml^3 or 1000000L^3

Step-by-step explanation:

First you have to know that the volume of a cube is found by A^3

A is 1 side of the cube.

Now plug in the number 1000.

1000^3=1000000000 ml^3

To simplify you could turn it into liters. To do this divide by 1000.

This would result in 1000000L^3

3 0

2 years ago

If x = –3 is the only x-intercept of the graph of a quadratic equation, which statement best describes the discriminant of the e

kompoz [17]

$\text{ if } \Delta=0\text{ then there is one x-intercept : }x=-\dfrac{b}{2a}\\\\
\text{ if } \Delta\ \textless \ 0\text{ then there are no x-intercept : } x=\varnothing\\\\
\text{ if } \Delta>0\text{ then there are two x-intercept : }x_1,x_2=\dfrac{-b\pm\sqrt{\Delta}}{2a}\\\\$

Answer : The discriminant is 0

5 0

3 years ago

Read 2 more answers

A fruit company delivers its fruit in two types of boxes: large and small. A delivery of 5 large boxes and 2 small boxes has a t

nikdorinn [45]

Each large box weighs 15 kilograms and each small box weighs 13.5 kilograms.

Step-by-step explanation:

Let,

Weight of large box = x

Weight of small box = y

According to given statement;

5x+2y=102 Eqn 1

3x+8y=153 Eqn 2

Multiyplying Eqn 1 by 4

$4(5x+2y=102)\\20x+8y=408\ \ \ Eqn\ 3$

Subtracting Eqn 2 from Eqn 3

$(20x+8y)-(3x+8y)=408-153\\20x+8y-3x-8y=255\\17x=255$

Dividing both sides by 17

$\frac{17x}{17}=\frac{255}{17}\\x=15$

Putting x=15 in Eqn 2

$15(3)+8y=153\\45+8y=153\\8y=153-45\\8y=108$

Dividing both sides by 8

$\frac{8y}{8}=\frac{108}{8}\\y=13.5$

Each large box weighs 15 kilograms and each small box weighs 13.5 kilograms.

Keywords: linear equation, elimination method

Learn more about elimination method at:

#LearnwithBrainly

4 0

3 years ago

Ronch [10]

Answer: Question #1 The height of the tree is about 18 feet.

To solve this problem, you have to write a proportion using the similar triangles that are drawn. The height of the tree matches the height of the person and the shadows match.

Therefore, we can write and solve the following equation:

x/15 = 5.5/4.5
82.5 = 4.5x
x = 18.33

4 0

2 years ago

Melissa walked at a rate of 88 feet per minute. what was her approximate speed to the nearest tenth of a mile per hour? 0.1 mile

Setler [38]

88x60=5280
I believe it's 1 mile.

6 0

2 years ago

Read 2 more answers