(4 - n) +2( -5n + 3)

Answer:

Step-by-step explanation:

Step one:

given data

initial charge =  $170 per hour

new charge= $136 per hour.

Required

% decrease

Step two:

% decrease = initial- new /inital charge

% decrease  = 170-136 /170*100

%  decrease = 34 /170*100

%  decrease = 0.2*100

% decrease = 20%

Answer:

Step-by-step explanation:

This can be done with dimensional analysis.

4 cm/s [ 1 m/100cm][3600 sec/1 hour]  

4 cm* 3600s / 100 cm = 4 m *3600 seconds / hr

144 m / hour. All the numbers and units cancel out.

Answer:

X  + 10 < 34

Step-by-step explanation:

X is the variable and variable represent a number in equations. Then this < is considered to be the less than symbol. The rest should be easy when you get the understanding.

Answer:

7*5^10=68,359,375

Answer:

1 because it goes up 3 over 3      3/3=1

Step-by-step explanation:

Answer:

The Answer is -11 cause its just -11

Answer:

A

Step-by-step explanation:

in order to find the answer take into mind what the question is asking for.

The equation has to pass the point (12,3) and has to be parallel to y=(4/3)x+5.

since the equations have to be parallel you can take out D since it has the reciprocal of the slope of the original equation.

You could also take out the negative equation C since the original one is not negative.

then you would have to graph the equations and would find that A is the answer because in order to have a point (12,3) you need to either start from the negative y-axis and ascend or from the positive axis and descend but B doesn't go down it goes up since it has a positive y value and has a positive slope. So in conclusion the answer would be A.

[tex]y = \frac{4 }{3} x - 13[/tex]

Answer:

$40

Step-by-step explanation:

Brian starts at $100, then loses 1/4th of the money,

100/4 = 25,

then you subtract 25 from 100, which gives you 75

With the remaining $75, he spends $15 on girl scout cookies,

75 - 15 = 60

He then has $60 remaining, but while walking home, loses 1/3 of the total amount.

60/3 = 20,

you then subtract 20 from 60, which gives you 40

Therefore, $40 is what is remaining.

Answer:

dude it's easy

Step-by-step explanation:

Answer:

x<-15

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

this can be written as an equation, which is 4x+2= 30

X = the number of friends

30= the total of stickers

4= the stickers each friend gets

2= the amount lan gets.

Now solve the equation, first subtract 2 on both sides, which is 28

4x=28 now divide both sides by 4, which will give you 7

x= 7, that means that answer is 7

2. $350

3a: 15 is half of 30, so knowing that means the answer is 50%

3b. 3 is 1/4 of 12 because 3x4 is 12, meaning that 3 is 25% of 12.

3c. 6 over 10 as a decimal is 0.6. Which as a percent is 60%

4. Noah's method does work because 20% x 5 is equal to 100% of a number.

Answer:

75=w

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

I am absolutely sure trust me sorry I put C but I mean D

Answer:

D

Step-by-step explanation:

because i know

Answer:

the answer is b

Step-by-step explanation:

Answer:

x=266/41

Step-by-step explanation:

1ft 7in/3ft 5 in=x/40

or,12in+7in/36+5=x/40

or,19in/41in=x/40

or,19*40/41=x

•°•x=266/41

Answer:

c

Step-by-step explanation:

also can i pls get brainlist pls pls

Answer:

The horizontal distance until the plane flies over the island is 2687ft

Step-by-step explanation:

An illustrative diagram of the scenario is shown in the attachment below.

P is the position of the plane, I indicates the position of the island and G is point on the ground such that /PG/ is perpendicular to the ground.

From the diagram, the horizontal distance from the plane to the island is x.

x = /IG/

In the diagram, consider triangle PIG which is a right angle triangle.

/PI/ is the hypotenuse

/IG/ is the opposite

and /GP/ is the adjacent.

From the formula,

[tex]tan\theta = \frac{opposite}{adjacent}\\[/tex]

∴ [tex]tan\theta = \frac{/IG/}{/GP/}\\[/tex]

[tex]tan\theta = \frac{x}{/GP/}\\[/tex]

∴ [tex]x = /GP/ tan\theta[/tex]

From the diagram

/GP/ = 7000 ft and [tex]\theta = 21[/tex]

∴ [tex]x = 7000 \times tan21\\[/tex]

[tex]x = 2687.05 ft[/tex]

[tex]x[/tex] ≅ 2687 ft

Hence, the horizontal distance until the plane flies over the island is 2687ft

Answer:

GH=45

HJ=81.6

GJ=53.4

Step-by-step explanation:

hope i helped <3

Answer:

d

Step-by-step explanation:

uhhh math

Answer: 1/6

Step-by-step explanation: 1/6 she has 3/18 chance of drawing a white chocolate. There are 3 white chocolates out of a total of 18 chocolates. That’s 3/18 which is equal to 1/6

Hope this helps :)

Answer:

did you simplify them??

Step-by-step explanation:

Answer:

huhufht

Step-by-step explanation:

kdgkfndk

Answer:

the answer is -34

Step-by-step explanation:

the answer is n=34

Answer:

7 yd

Step-by-step explanation:

42/6= 7

Answer:

_24

step by step explanation

-2x-8×4=16

-2x-32=16

the -32 will go the other way and it will become positive

-2x=32+16

-2x=48

-2×/2=48/2

=-24

Answer:

8

Step-by-step explanation:

-2x-8y=16                   -2(8)-8(-4)=16

-2x-8(-4)=16                 -16+32=16

-2x+32=16                       16=16

-2x=-16

x=8

Have a great day and I hope this is correct

Answer:

Y is NOT a function of X

Step-by-step explanation:

I guess this because it doesn't go in a pattern.

Answer:

The answer is 180 because 5×12 is 60 so 15×12 is 180

Step-by-step explanation:

(5,15)( 10,30)(15,45)(20,60)(25,75) and so on and so forth

Answer:

1 minute equals 60 seconds. 60 divided by 5 equals 12 seconds. 15 characters times 12 seconds equals 180 characters.

Answer:

bottom right

Step-by-step explanation:

for the side that says total cost u go up to 4 and for the one that says number of puzzles u go two over

Answer:

a = b = 40°

Step-by-step explanation:

∠ a and 140° are adjacent and are supplementary , thus

a = 180° - 140° = 40°

a and b are alternate angles and are congruent, thus

b = a = 40°

Answer:

b=40 okkkkllllllkkkkkkkkkkkkkkkkkkkkkllllllkkkk