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2 years ago

Based on the sample results, about what percent of

Mathematics

1 answer:

raketka [301]2 years ago

5 0

Answer:

84%

Step-by-step explanation:

Given that :

Number that prefers digital copy = 4

Number who prefers hard copy = 21

Total number of samples =

(digital + hard copy) = 25

Percentage who prefers hard copy :

(Number who prefer hard copy / total number of samples) * 100%

(21 / 25) * 100%

0.84 * 100%

= 84 %

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What is the value of x? Explain and show the steps.<br> 192x *4 = -5 (round to nearest tenth)

Nat2105 [25]

Answer:

0 or -5/768

Step-by-step explanation:

192x * 4 is 768x

Now you have 768x=-5

If you divide both sides by 768 you get -5/768

In decimal form that is -0.006510416

If you round the decimal to the nearest tenth you get 0

I hope this helps!

Please give brainliest if it did help

6 0

3 years ago

HELP ME PLZ!!!!!!!! Find the solution of this system of equations.

Strike441 [17]

Set equal to each other since both equal 90

5x-6y=-10x-6y
add 6y to both sides
5x=-10x
x=0

5(0)-6y=-90
-6y=90
divide by -6
y=-15

(x,y)
(0,-15)

7 0

3 years ago

A linear revenue function is R = 12x. (Assume R is measured in dollars.) what is the slope? What is the revenue received from se

kherson [118]

Answer:

12 ; 12 dollars

Step-by-step explanation:

Data provided in the question:

Revenue function, R = 12x

R is in dollars

Now,

The slope can be found out by differentiating the above revenue function w.r.t 'x'

thus,

$\frac{\textup{dR}}{\textup{dx}}$ = $\frac{\textup{d(12x)}}{\textup{dx}}$

slope = 12

Now, for the second case of selling one more unit i.e x = 1, the revenue can be obtained by substituting x = 1 in revenue function

therefore,

R = 12 × 1 = 12 dollars

6 0

3 years ago

Mark’s food for lunch cost $12. The restaurant added a 5 percent sales tax, $0.60, to the bill. Mark wants to pay a 20 percent t

kotykmax [81]

12+.60+ 12.60

12.60*20%

12.60*.20= 2.52

Tip should be around $2.52

Hope this helped :)

7 0

3 years ago

Read 2 more answers

Here are descriptions for how two dot patterns are growing,

Arisa [49]

The steps in the patterns A and B form a sequence

The attached diagram represents dots in patterns A and B

<h3>How to draw the diagrams</h3>

For pattern A, we have:

Step 2 = 10 dots

Increment of 3 dots in each step

This means that:

Step 0 = 4 dots

Step 1 = 7 dots

Step 2 = 10 dots

Step 3 = 13 dots

For pattern A, we have the following rule

$T_n =2n^2 + 1$

When n = 0 to 3, we have:

$T_0 =2(0)^2 + 1 =1$

Step 0 = 1 dot

$T_1 =2(1)^2 + 1 =3$

Step 1 = 3 dots

$T_2 =2(2)^2 + 1 =9$

Step 2 = 9 dots

$T_3 =2(3)^2 + 1 =19$

Step 3 = 19 dots

Next, we draw the diagrams of both patterns (see attachment)