Explain two different ways to find a new value after an original value is increased by 30%.

Answers

Answer 1

Answer:

Frequently, we know the new amount and the percent change and need to know the original amount. We found that a $600 TV on sale for 30% off, cost $420 on sale. We might think, that to find the original cost of the TV that has a sale price of $420 after a sale of 30% off, we could just take 30% of the $420 cost and add it back to the $420 to find the original cost.

30% of $420 is 0.30($420) = $126 and $420 + $126 = $546.

Or, 130% of $420 is 1.3($420) = $546.

Notice that this is not the $600 original list price with which we started.

Step-by-step explanation:


Related Questions

Find slope intercept form.
(M=1/2) (6,3)

Answers

Answer:

y = (1/2)x

Step-by-step explanation:

Start with that form:  y = mx + b.  Substitute 1/2 for m, 6 for x and 3 for y, for the purpose of finding the value of the y-intercept, b:

3 = (1/2)(6) + b.  Thus, b = 0 and the desired equation is  y = (1/2)x.

WILL MARK BRAINLIEST

Answers

Answer:

As x decrease by 1 y decrease by 6 first then 5 then 4 it is not equal so it is nonlinear meaning not straight.

Step-by-step explanation:

please help i feel like im dying i will give out brainliest and points thank you

Answers

Answer:

I feel like the answer would be 10

Step-by-step explanation:

because if its same size it would be 14 but then u add the 2 to 2x u get 4 then x is the rest of 14 I'm farely sure if someone else can verify this then this is the answer

JoAnn paid $3.80 for each book at a book sale.
How much did she spend if she bought 9 books?

Answers

Answer:

$34.20

Step-by-step explanation:

total spent =3.80*9=$34.20

What is the area of the trapezoid?
6 m
4 m
5 m
3 m
square meters

Answers

6 square meters long because of jesus
Answer : 19.5m


The area formula for a trapezoid is A = a+b
——h
2
You would cut the trapezoid vertically then you would do 4x3=12 then 3x5...3 because you subtracted 6-3, so 3x5 is 15 then 15/2 would be 7.5 you divided bc it’s a triangle and the formula for the triangle is A=bxh/2
Then lastly you would add 7.5 + 12 and you’d get 19.5m.

Hope it helped :)!

13^-4/13^4=13^0

True of False

Answers

I think false but I’m not sure

Mai gave half of her brownies, and then half a brownie more, to Kiran. Then she gave half of what was left,
and half a brownie more, to Tyler. That left her with one remaining brownie.

Can someone please help me with this problem, I really need help.

Answers

Answer:

x = 7

Step-by-step explanation:

all we know is that she had 1 brownie at the end, in the end she gave half her brownie to tyler, so add one who will get 1 1/2, before that she split her brownies between her friends, so multiply 1 1/2 by 2 and you will get 3, before that she gave 1/2 a brownie to Kiran, so we would add 1/2 to 3 and get 3 1/2, before that she first split it in half for a her friends, so at last,  multiply 3 1/2 by 2 and you will geet 7 as your final answer.

The answer would be 7!

 

You would take 1 and add 1/2 to it

= 1 1/2

Then, multiply by 2

= 3

Then add 1/2 to that

= 3 1/2

Then multiply 2 one more time

= 7

This is because Mai gave half of her brownie and then half more of her brownie to each person she gave it to

So you would add 1 + 1/2 and then multiply by 2

Since she did this to 2 people you would repeat one more time!

Hope this helped!

 

how many solutions? 2a + 4 = a + a + 4

Answers

a+a+4 = 2a + 4
so,
2a + 4 = 2a + 4
this means that the equation has infinite amount of solutions.

The distance from Jason's house to school is 0.2 kilometer. What is this distance in meters?

Answers

Answer:

200 Meters!

Step-by-step explanation:

Answer:

200 m

Step-by-step explanation:

Distance from Jason's house to school = 0.2 kilometers

Converting into metres

0.2 km = 0.2 * 1000 m = 200 m

Hope it will help :)

2(4x-1)+3=7
i'm little confused on this

Answers

Answer:

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

Step-by-step explanation:

Since you cannot subtract -1 from 4x, you multiply 2 × 4x = 8x

Now, you have 8x - 1 + 3 = 7

Seperate the 8x from the other numbers

8x = 1 - 3 + 7 ---> 6

8x = 6

Now simplify

x = [tex]\frac{6}{8}[/tex]  <----- to reduce, divide the numerator and denominator by 2

Hence,

x =  [tex]\frac{3}{4}[/tex]

Find the area n show work

Answers

Lengh X width, 4 inch times 4 inch = 15. The area is 15

what is the answes please I need it!​

Answers

the answer is -4 so the first one

What is the volume of this figure?

Answers

Answer:

875 ft^3

Step-by-step explanation:

Pick them apart starting at the bottom. The formul used is V=lwh

Starting at the bottom we have we have a sqare of 5 ft = 5ft^3= V = 125 ft^3

Then we have a rectangular prism: 5 x 5 x 20 = V = 500 ft^3

Third we have 5 x 5 x 10 = V = 250 ft3

125+500+250 = 875 ft^3

Can somebody help me please

Answers

the correct answer is 67 to the third power
The correct answer is 67 to the three one hopes this help

1. if 5 oranges cost 60 cents, how much does 1 orange cost?

2. if 2 pounds of meat cost $2.80, how much does 1 pound cost?

3. if a car goes 80 miles in 2 hours, how far does it go in 1 hour?

Answers

1. 12 cents each
2. $1.40
3. 40 mph

Examine the following tables of ordered pairs and identify which relations are functions.Select two that apply

Answers

Answer:

Step-by-step explanation: B

The tables of ordered pairs representing relations that are functions are: A and C.

What is a Function?

If a table of ordered pairs of a relation has each x-value relating to exactly one y-value, then the relation is a function.

Table B and D do not apply to this rule. Table A and C have each of its x-values paired with exactly one y-value.

Therefore, table A and C represent functions.

Learn more about functions on:

https://brainly.com/question/10439235

#SPJ2

In the triangle below, x= cm round to the nearest tenth

Answers

9514 1404 393

Answer:

  8.6 cm

Step-by-step explanation:

We notice the hypotenuse is given, and the desired length is of the side opposite the given angle.

The mnemonic SOH CAH TOA reminds you of the relevant relationship:

  Sin = Opposite/Hypotenuse

  sin(35°) = x/(15 cm) . . . . . . fill in the given information

We can multiply by 15 cm to find the value of x.

  x = (15 cm)sin(35°)

  x ≈ 8.6

_____

For those inclined to copy this answer to a different question, we suggest ...

  y = (15 cm)cos(35°) ≈ 12.3 cm

Answer: 8.603646545 or rounded to the nearest tenth 8.6

Step-by-step explanation:

you are going to have to use (sin). so,

(15)sin(35)

8.603646545 or 8.6

this is correct.

pls answer i need help with 2 questions

Answers

Answer:

(2, 8) and (-2, 7)

Step-by-step explanation:

You can plug in the respective x and y values and see what works.

which polynomials are in standard form?

Answers

Answer:

c is the ans

Step-by-step explanation:

Mrs. Avery is going to randomly select one student from her class to read a poem out loud. There are 15 boys and 13 girls in her class.

What is the P{boy}?

Answers

15/28 can’t be simplified

(SAT prep) Find the value of x

Answers

Answer:

x=120 degrees

Step-by-step explanation:

angle below angle x=y

y=40 because it is corresponding congruent angle

x+y+20=180

x+40+20=180

x=120

Answer:

120

Step-by-step explanation:

two lines are parallel

20+40+x=180

x=180-60

x=120

complete the statement of each of these rules:

a (+)×(?)=(+)
b (-)×(+)=?
c (?)×(-)=?​

Answers

Answer:

a) (+) × (?) = (+)

(?) = (+)

b) (-) × (+) = ?

? = (-)

c) (?) × (-) = ?

? is undefined

Step-by-step explanation:

a) (+) × (?) = (+)

From the given equation in the question, by dividing both side of the equation by (+), we have;

((+) × (?))/(+) = (+)/(+)

(?) = (+)/(+) = (+)

Therefore, we have;

(+) × (+) = (+)

(?) = (+)

b) (-) × (+) = ?

From the given equation in the question we apply the operation rules as follows;

(-) × (-) = (+)

(-) × (+) = (-)

Therefore;

(-) × (+) = ? = (-)

? = (-)

c) (?) × (-) = ?

From the rules of multiplication, we have;

(-) × (-) = (+)

(+) × (-) = (-)

Therefore, when (?) = (-), ? = +, from which we have;

(?) ≠ ?, which is an error

Similarly, when (?) = (+), ? = -, therefore, (?) and ?, always changes sign

Therefore, the equation, (?) × (-) = ?, is undefined.

SOMONE HELP PLSSSS IM SO CONFUSED

35.95+7.75%

Answers

Answer:

43.7

Step-by-step explanation:

Answer the question below in the picture

Answers

Answer:

part b (2,-1)

Part c the lines intersect at (-20,-45)

Step-by-step explanation:

Solve the question to get brainliest

Answers

Answer:

D..................

Step-by-step explanation:

Have a nice day

7. Where do the altitudes of ATUV meet?
70.6)
3
O
M-B-2)
U2)
A (0, 2)
B (0, 1.5)
C (0,1)
D (1.5, 1)

Answers

I think the answer is letter B or C I’m not sure

Please help will give brainlest.

Answers

Answer:

a).cruz is right.

b).-64 is cube root of -4.

c).because -64 is square root of -8.

Step-by-step explanation:

1.Cruz is right

2. If the nth root of the negative number is a odd number, the answer is negative this of the FOLLOWING is the example not the answer

[tex] \sqrt[5]{ - 243} = [/tex]

[tex]( - 3 \times - 3) = 9[/tex]

[tex]9 \times ( - 3) = - 27[/tex]

[tex] - 27 \times - 3 = 81[/tex]

[tex]81 \times - 3 = - 24 3[/tex]

So the answer is -3

For -64

[tex] - 4 \times - 4 = 16[/tex]

[tex]16 \times - 4 = 64[/tex]

So Cruz is right.

3. Aaron is wrong because it asked for the 3rd root of -64 and -8 isn't that.

Jacob is wrong because the nth root is a odd number and the number under the radical s negative so it going to give us a negative number(which is a real number)

This cylinder has a volume of 12π cubic inches and a diameter of 4 inches. Find the cylinder's radius and height.

Answers

Answer:

The statement 50π=52πh is equivalent to 50=25h. Since 50 is 25 times 2, h=2 units.

The statement 36π=r2π4 is equivalent to 36=r2⋅4. Since 36 is 4 times 9, r2=9. This implies r=3 units.

Step-by-step explanation:

i think tht is right

Simplify the expression:
(6y + 10) - (2y + 3)
show work if u can

Answers

Answer:

4y + 7

Step-by-step explanation:

(6y + 10) - (2y + 3)

6y - 2y = 4y

10 - 3 = 7

4y + 7

WILL GIVE BRAINIEST!!! IF UR ANSWER IS RIGHT

Answers

Answer:

-1

Step-by-step explanation:

the slope of this one is y=x-21

in order for it to be perpendicular the sign changes and the slope flips

but because the slope is 1 you just change the slope to -1

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