Ask question

Ask question

All categories

2 years ago

9

Help me on all of the questions below plz

1 answer:

Lubov Fominskaja [6]2 years ago

7 0

1- The answer is that she wants the new time to be 32 minutes

Solution: The question asks that she wants to DECREASE by 20%

What you will do it convert 20% to a decimal (which is 0.20)

Then, you need to multiply the minutes by the decimal:

40 x 0.20 = 8 minutes

Now you know that 8 minutes will be 20% of 40 minutes, so you just subtract 8 from 40 UwU

You might be interested in

Graph this function:y+7=12(x–5)

Andreyy89

Well, first you have to simplify the equation,
y + 7 = 12(x - 5)
y + 7 = 12x - 60
-7 -7
y = 12x - 67
Then graph!

4 0

3 years ago

Choose the graph that represents the following system of inequalities: y ≥ −3x + 1 y ≤ 1 over 2x + 3 In each graph, the area for

svet-max [94.6K]

Answer:

Correct graph is C

Step-by-step explanation:

Given two inequalities are:

1. $y\leq -3x+1$

2. $y\leq x+3$

Step1 : Remove the inequalities

1. $y=-3x+1$

2. $y=x+3$

Step2 : Finding intersection points of equations

By solving linear equation

$y=-3x+1=x+3$

$-3x+x+3$

$x=-0.5$

Replacing value of x in any equations

we get,

$y=x+3\\$

$y=-0.5+3$

$y=2.5$

Therefore, Point of intersection is (-0.5,2.5)

Step3: Test of origin (0,0)

Here, If inequalities holds true for origin then, shades the graph towards the origin.

For equation 1.

$y\leq -3x+1$

$0\leq -3(0)+1$

$0\leq +1$

True, Shade graph towards origin.

For equation 2.

$y\leq x+3$

$0\leq 0+3$

$0\leq 3$

True, Shade graph towards origin.

Thus, Correct graph is C

6 0

2 years ago

Your monthly profit (in dollars) from selling magazines is given by P = 2x + x where x is the number of magazines you sell in a

Sergeu [11.5K]

Answer:

To find marginal profit, take the derivative, then plug in 50.

Derivative = 4 + (7 / 2sqrt50)

(plug in 50)

to get 4.50

Step-by-step explanation:

3 0

3 years ago

Question in photo! (Please help with other questions!)

zhannawk [14.2K]

Answer:

<u>c) </u> $a_{n}$ <u> = 3.5n + 7.5</u>

Step-by-step explanation: =>

<u>Given :-</u>

a = 11

d = 3.5

<u>To Find :</u>

$a_{n}$

<u>Solving :-</u>

= a + (n - 1)d

= 11 + 3.5n - 3.5

= 3.5n + 7.5

<u>Solution :-</u>

<u>c) </u> $a_{n}$ <u> = 3.5n + 7.5</u>

7 0

2 years ago

PLS HELP ASAP! HURRY, GIVING BRAINLY!

Kazeer [188]

The second answer I believe to be correct :)

7 0

3 years ago