Dla każdej z liczb 20, 60, 150, 300, znajdź liczbę : a) o 10% większa, b) o 20% mniejszą, c) o 50% mniejsza,

Answers

Answer 1

Odpowiedź:

Prosimy sprawdzić wyjaśnienie

Wyjaśnienie krok po kroku:

Na numer: 20

a.) 10% więcej;

(1 + 10/100) * 20;

1,10 * 20 = 22

b.) 20% mniej

(1 - 20/100) * 20

0,8 * 20 = 16

c.) 50% mniej

(1 - 50/100) * 20

0,5 * 20 = 10

Dla numeru 60:

a.) 10% więcej;

(1 + 10/100) * 60;

1,10 * 60 = 66

b.) 20% mniej

(1 - 20/100) * 60

0,8 * 60 = 48

c.) 50% mniej

(1 - 50/100) * 60

0,5 * 60 = 30

Na numer 150;

a.) 10% więcej;

(1 + 10/100) * 150;

1,10 * 150 = 165

b.) 20% mniej

(1 - 20/100) * 150

0,8 * 150 = 120

c.) 50% mniej

(1 - 50/100) * 150

0,5 * 150 = 75

Dla numeru 300;

a.) 10% więcej;

(1 + 10/100) * 300;

1,10 * 300 = 33%

b.) 20% mniej

(1 - 20/100) * 300

0,8 * 300 = 240

c.) 50% mniej

(1 - 50/100) * 300

0,5 * 300 = 150


Related Questions

Help I have a math assignment due by 11:59 pm and I’m stuck!

Answers

Answer:

answer C: 140 cm

Step-by-step explanation:

If the water rises 14cm in 2 seconds, 21cm in 3 seconds etc... Then the water rises at 7cm per second. Multiply this by 20 seconds and you get 140cm

By find how high the water would be after 20 seconds, you would find out much height is increasing each second.

21 - 4 = 7

28 - 21 = 7

35 - 35 = 7, and so forth.

So, we know that 7 cm is increasing each second. You would just add 7 to the height for each second.

2 --> 14

3 --> 21

4 --> 28

5 --> 35

6 --> 42

7 --> 49

8 --> 56

9 --> 63

10 --> 70

11 --> 77

12 --> 84

13 --> 91

14 --> 98

15 --> 105

16 --> 112

17 --> 119

18 --> 126

19 --> 133

20 --> 140

Thus, after 20 seconds, the water's height would be c) 140 cm.

Write as an expression: Jones Elementary School sang 3 more than 4 times as many songs as Redwc
Middle School at the concert

Answers

it should be 4x+3. since u don’t have the amount of songs that redwc sang, it would be a variable such as x, and the 3 more means to add. hope this helped!

Factor the expression below.
x2 - 81
O A. (X-9)(x - 9)
O B. (x + 27)(x-3)
O C. (x-27)(x - 3)
O D. (x + 9)(x-9)

Answers

Answer is D (x+9)(x-9)

How is the finance charge calculated for credit cards?

A. APR times Remaining Balance

B. APR times Average Daily Balance

C. MPR times Remaining Balance

D. MPR times Average Daily Balance

Answers

Answer:

A. APR times Remaining Balance

Answer:

Answer is B I believe

Step-by-step explanation:

A common way of calculating a finance charge on a credit card is to multiply the average daily balance by the annual percentage rate (APR).

Examine this expanded form.

1
(a)(a)(a)(a)(a)(a)

Which is the expression in exponential form?
6-a
6a
a-6
6a-1

Answers

Answer:

*drumroll* It's C. a-6,babes <33

Step-by-step explanation:

Did this in Edge,hope it helps >3<

Answer:

C

Step-by-step explanation:

edge 2021

-30-0.6k
what does k equal?​

Answers

Answer:

K would equal to:

K= 50

Hope that helps! :)

Step-by-step explanation:

Solve the following proportions 6.5/40.3=m/12.4

Answers

Answer:

m = 2

Step-by-step explanation:

cross multiply to get:

40.3m = 6.5(12.4)

40.3m = 80.6

m = 80.6/40.3

m = 2

Tell weather each pair is parallel, perpendicular, or neither: 8x – 2y = 3
x + 4y = -1

Answers

Neither. 8x-2y=3 is y=4x-3/2 and x+4y=-1 is y=1/4x-1/4. To be perpendicular the slopes need to be opposite and reciprocal. the slopes in this question are only reciprocals.

The wrestling team wants to sell pies for a fundraiser. The cafeteria helped out by donating 2 pies. Each pie will be cut into 4 pieces. If the team wants to sell at least 32 pieces, how many pies must the wrestling team bake?
50 pts if they can pout how they solved it and the answer in an inequality form

Answers

Answer:

answer is

Step-by-step explanation:

2+4=6

and 6-32=26 answer

hi please help i’ll give brainly but please show your work.

Answers

Answer:0.028

Step-by-step explanation: 0.07 x 0.4= 0.028

0.028 is the answer! Hope this helps you!

x² + y² = 49
Note: Each column in the table represents an ordered pair. If multiple solutions exist, you only need to identify one.​

Answers

Answer:

1....y=7

2...x=7

3...y=5

4...y=6

5...x=2√10

A sno-cone machine priced at $139 is on sale for 20% off. The sales tax rate is 6.75%. What is the price of the sno-cone machine after the discount and sales tax?
A.$111.20
B.$118.71
C.$29.68

Answers

Answer:

About $118.70

Step-by-step explanation:

139 x .2 = 27.8

139 - 27.8 = 111.2

111.2 x .0675 = 7.5

111.2 + 7.5 = 118.7

118.7 = $118.70

4r - 9 = 7r can you help solve

Answers

Answer:

r=4 :)

Step-by-step explanation:

PLZZZZZ HELP AND HURRRRRY!

Answers

Answer:

b

Step-by-step explanation:

Mariana wears her winter coat when the temperature is colder than -4^{\circ}\text{C}−4 ∘ Cminus, 4, degrees, start text, C, end text. Write an inequality that is true only for temperatures (t)(t)left parenthesis, t, right parenthesis at which Mariana wears her winter coat.

Answers

Answer:

T < - 4°C

Step-by-step explanation:

Given that Mariana wears her coat only when temperature is colder than - 4°C

Recall that lower temperature values indicate higher degree of coldness ;

Hence, Mariana will only wear her coat when temperature values are lesser than - 4°C ; this means that the temperature at that period is colder than - 4°C.

Hence, the inequality expression which is only true for temperatures when Mariana wears her coat can be written as :

Temperature = T

T < - 4°C

Answer:

t < -4

Step-by-step explanation:

Compute the scale factor, as a percent, for each given relationship. Drawing 1 to Drawing 2.


A) 210%
B) 47.61%
C) 2.1
D) 0.47169

Need help and fassttttttt!!!!!plzzz

Answers

Answer:

D)0.47160

Step-by-step explanation:

I think correct me of I'm wrong

Priya's family exchanged 250 dollars for 4,250 pesos. Priya bought a sweater for 510 pesos. How many dollars did the sweater cost? Pesos dollars 4,250 250 25 1 3 510

Answers

Answer:

$30

Step-by-step explanation:

since they exchanged them we can assume they are worth the same

250=4250

First find how many pesos is worth 1 dollar

4250/250= 17

Then divide the amount the sweater costs by how much 1 dollar would be

510/17= 30

The sweater would cost 30 dollars.

PLEASE HELP!!!!!!!! Identify the angle of elevation.

Answers

Answer:

8

Step-by-step explanation:

Hope it helps you in your learning process.

Consider a right triangle ABC where ZC is
the right angle. If sin A = 3/5 and cos A =4/5,
what is cos B?

Answers

Answer:

3/5

Step-by-step explanation:

there are 4 pizzas and 3 people. how much would each eraser get if each person eats the same amount.​

Answers

Answer:

Each person should share 1 and 1/2

what is the factor expression of 12p+30

Answers

Answer:

6(2p + 5)

Step-by-step explanation:

The largest common factor of 12 and 30 is 6.  Thus,

12p+30 = 6(2p + 5)

Answer:

12x +30=6(2x+5)

Step-by-step explanation:

Find the Greatest Common Factor (GCF)

GCF = 6

Factor out the GCF (Write the GCF first and then in parenthesis, divide each term by the GCF)

6(12p/6 + 30/6)

Simplify each term that is within the parenthesis

6(2p + 5)

(hope this helps can i plz have brainlist :D hehe)

What is the slope and y intercept of Sarah’s Heavenly Cupcakes?? Will give brainly !!!!

Answers

Answer:

y=1.50x

Step-by-step explanation:

Answer:

what the other person said

Step-by-step explanation:

Find the lateral surface area of the cylinder. Round your answer to the nearest tenth.

Answers

Answer:

[tex] = 2\pi \: r \: h \\ 2 \times \pi \times 4 \times 9 \\ = 226 .19 {cm}^{2} [/tex]

Can I have the brainliest please?

Answer:

9 X 4 = 36

Step-by-step explanation:

not really the answer sorry pls dont be mad

8. It takes Aldrin 30 minutes to finish reading the 10 pages of a book. How long does it take for
him to finish reading the 15 pages?​

Answers

Answer:

it took him 15 more minutes it would be 45 minutes in all

Step-by-step explanation:

I hope I helped!!

Ronald bought 1.5 pounds of red apples and 0.75 pounds of yellow apples. He bought 1.6 times as many pounds of green apples as red apples and yellow apples combined.

How many pounds of green apples did Ronald buy?

Answers

Answer:

To find the number of green apples he bought, We do the following:

calculate the total mass of red and yellow apples bought 1.5+0.75=2.25 poundsSince the mass of green apples bought was 1.6 times the combined mass of yellow and red apples bought we get;2.25×1.6=3.6pounds He bought 3.6 pounds green apples

24 – 37x - 72
[tex]24 - 37x - {72}^{2} [/tex]
. factorise it​

Answers

Answer:

The answer is -37x - 48

please answer correctly and quickly all the question-answer all the questions, please

Answers

Answer:

Step-by-step explanation:

81= 3 times k. K equals 27

4x-12 = 18. X is 5

4x-3=5. X is 2

4x-2=38. Answer is C

I hope this helps!

Plz, Plz, mark Brainliest!

11) 4x-3=5
+3 +3
4x=8
/4 /4
x=2

14) 81=3k
/3 /3
27=k

The last question) 4x-12=8
+ 12 +12
4x=20
/4 /4
x=5

Order these lines from the steepest to the least steep.

Answers

Answer:

B, A, D, C

Step-by-step explanation:

The slopes are:

2, -4, -1/2, 3/4

Ordering from the greatest to the least by absolute value:

-4, 2, 3/4, -1/2

Correct choice is:

B, A, D, C

Answer:

slopes are 2,-4,-1/2,3/4

Step-by-step explanation:

In order would be B=-4,A=2,C=3/4,D=-1/2

Hope this helps

please help me and thank you​

Answers

The answer is 6^7
Hope this helps

PLEASE HELP!!

Find the 14th term of the sequence: 2,4,8,16...

Answers

Answer:

16384

Step-by-step explanation:

You have to find 2 to the 14th power (that's the rule)

Hope that helps!

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