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3 years ago

(I will give Brainliest and 100 points!!!)

Mathematics

1 answer:

Bogdan [553]3 years ago

8 0

Answer: Problem 1: x<$5

Problem 2: 6 + c ≥ 20

Step-by-step explanation:

number of tubes=4

total=<$20

4(x)<$20

x<$20/4

x<$5

number of ice cream cones needed to make profit=20

number of ice cream cones sold so far= 6

how many left?= c

6 + c ≥ 20

I am not a professional, simply using prior knowledge.

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Write the following using algebraic notation, using the letter x for any unknown numbers:

Furkat [3]

Answer:

a) The algebraic notation is 4 ( x -3 ) = 4x -3

b) The algebraic notation is 2x +2

Step-by-step explanation:

Explanation:-

Let 'x' be the number

Given 'x' is a number, subtract three

⇒ x - 3 and multiply '4'

The result of algebraic is 4 ( x -3 ) = 4x -3

Let 'x' be a number and add one

⇒ (x+1) and then double

∴ The algebraic notation is

(x+1 ) (2) = 2x +2

7 0

3 years ago

An average person speaks 35,000 words in one week.

vodomira [7]

Answer:

They speak more with an average of 5,000 words a day.

Step-by-step explanation:

35,000 ÷ 7 = 5,000

5 0

3 years ago

Please help, marking brainleist, show work

Stels [109]

Answer:

Perimeter: 16x + 16

Area: 40x + 15

Step-by-step explanation:

Remember, the perimeter is the sum of all the sides of a figure, it can be found by adding up all the sides. The area is the space within the figure, in the case of a quadrilateral can be found by multiplying the length by the width. Finally, in a rectangle, the opposite sides are congruent, parallel, and intersect in 90degree (right) angles.

Using this,

1. Find the perimeter

Since opposite sides are congruent, there will be two sides with a measure of ( 8x + 3 ), and two sides with the measure of 5. Hence the sum of all the sides would be

8x + 3 + 8x + 3 + 5 + 5

Add them together,

16x + 16.

The perimeter of the figure is 16x + 16

2. Find the area,

To find the area of a rectangle, multiply the length by the width.;

( 8x + 3 ) * 5

Distribute:

40x + 15

The area of the figure is 40x + 15

4 0

3 years ago

Hensley earns $8.50 per hour at an amusement park. She received a 12% raise when she becomes a manager at the gift store. How mu

ICE Princess25 [194]

First, find 12% of $8.50.

12% of $8.50 = 12% * $8.50 = 0.12 * $8.50 = $1.02

The raise is $1.02 per hour.

$8.50 + $1.02 = $9.52

Hear new hourly earnings are $9.52/hour.

3 0

3 years ago

How sensitive to changes in water temperature are coral reefs? To find out, scientists examined data on sea surface temperatures

Oduvanchick [21]

The correlation coefficient tells that every increase in sea surface temperature of one degree Celsius will result in an average of 0.1578 fewer centimeters of coral growth per year.

Using technology

The mean= x bar = 26.4667

The mean = y bar= 0.86

The standard deviation= Sx= 0.2251

The standard Deviation Sy= 0.0438

The Correlation Coefficient= r = -0.8111

The slope= b= r* Sy/Sx= -0.15789

The intercept is 5.0389

(d) Every increase in sea surface temperature of one degree Celsius will result in an average of 0.1578 fewer centimeters of coral growth per year.

Here the independent variable is X the sea surface temperature and dependent variable is the Y coral growth.

As the temperature decreases which is along x- axis the growth increases along y axis.

From the given options the option d is the best answer according to the question given.

The same values are calculated using different technology .

brainly.com/question/24183059

6 0

2 years ago