All categories

3 years ago

3/10 x 90 i know the answer but how

Mathematics

2 answers:

Inessa05 [86]3 years ago

7 0

You can multiply 90 by .3 since 3/10 is .3

then you would get 27

emmasim [6.3K]3 years ago

5 0

10 dived by 3 is 3.3 rep. then you multiply by 90 just show your steps divsion and mult. so when represting 3.3 rep. all you do is a bar notation above the first 3 and it explaines its self. i hope i could help

You might be interested in

In a candy store a $5.00 jar of candy is on a boat 50% of what is the discount? What is the sale price of the jar of candy?

Effectus [21]

STEP 1:
Discount $= Price times discount %

=$5.00 * 50%
=$5.00 * 0.50
=$2.50 discount amount

STEP 2:
Sale price= Original $ - Discount amount

=$5.00 - $2.50
=$2.50 sale price

ANSWER: Discount amount is $2.50 and the sale price is also $2.50.

Hope this helps! :)

7 0

3 years ago

HELP ASAP!! I need this answer quickly it’s due in 15 minutes! TY!!

Margarita [4]

Answer:

mean for data set 1 is 41

data set 1 MAD is 16.4

data set 2 MAD is 16.8

mean for data set 2 is 38

Step-by-step explanation:

Finding the mean:

formula: sum of the data set / total number of terms

sum of the data set: 18 + 29 + 35 + 58 + 65 = 205

total number of terms: there is 5 numbers in the data set

mean = 205 / 5

mean = 41

MAD (Mean Absolute Value):

step 1: Find the mean of the data (above)

step 2: Find the distance between each data and mean.

18, 29, 35, 58, 65

Distance between 18 and 41 is 23 (41 - 18 = 23)

Distance between 29 and 41 is 12 (41 - 29 = 12)

Distance between 35 and 41 is 6 (41 - 35 = 6)

Distance between 58 and 41 is -17 (41 - 58 = -17)

Distance between 65 and 41 is -24 (41 - 65 = -24)

step 3: take the absolute value of any negative numbers

|-17| and |-24| is 17 and 24

step 4: add all the distances

23 + 12 + 6 + 17 + 24 = 82

step 5: divided it by the number of data

82 / 5 = 16.4

formula: sum of the data set / total number of terms

sum of the data set: 19 + 26 + 27 + 45 + 73 = 190

total number of terms: there is 5 numbers in the data set

mean = 190 / 5

mean = 38

MAD (Mean Absolute Value):

step 1: Find the mean of the data (above)

step 2: Find the distance between each data and mean.

19, 26, 27, 45, 73

Distance between 19 and 38 is 19 (38 - 19 = 19)

Distance between 26 and 38 is 12 (38 - 26 = 12)

Distance between 27 and 38 is 11 (38 - 27 = 11)

Distance between 45 and 38 is -7 (38 - 45 = -7)

Distance between 73 and 38 is -35 (38 - 73 = -35)

step 3: take the absolute value of any negative numbers

|-7| and |-35| is 7 and 35

step 4: add all the distances

19 + 11 + 12 + 7 + 35 = 84

step 5: divided it by the number of data

84 / 5 = 16.8

Let me know if you have any questions !

3 0

2 years ago

What is the measure of angle Z in the parallelogram shown?

Anarel [89]

Answer:

30 Degress

Step-by-step explanation:

8 0

3 years ago

Can someone please help me and explain I’ll mark brainliest

malfutka [58]

Part (a)

<h3>Answer: x = -8</h3>

------------------

Work Shown:

2(x-1) = 3(x+2)

2x-2 = 3x+6 .... distribute

2x = 3x+6+2 .... adding 2 to both sides

2x = 3x+8

2x-3x = 8 .... subtracting 3x from both sides

-x = 8

x = -8 ..... multiply both sides by -1

===========================================================

Part (b)

<h3>Answer: x = 5/11</h3>

------------------

Work Shown:

-4(2x-2) = 3(x+1)

-8x+8 = 3x+3 ..... distribute

-8x = 3x+3-8 .... subtract 8 from both sides

-8x = 3x-5

-8x-3x = -5 ... subtract 3x from both sides

-11x = -5

x = -5/(-11) .... divide both sides by -11

x = 5/11

In decimal form, this is approximately equal to 5/11 = 0.4545

6 0

3 years ago

Solve x^2=28 where x is a real number

Vadim26 [7]

5.291 to 2 d.p I think that is the answer.

7 0

3 years ago