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jonny [76]
3 years ago
12

riddle me this I'm thinking of a number it is odd is between 1 and 100 is higher than 20 it is smaller than the answer to 6 time

s 6 it is a multiple of 5 the sum of its digits is 7
Mathematics
2 answers:
Bogdan [553]3 years ago
6 0
I think it might be 27
Snezhnost [94]3 years ago
6 0
- odd number between 20 and 36
36 - 20 = 16 / 2 = 8 possible numbers
21, 23, 25, 27, 29, 31, 33, 35

- multiple of 5
leaves only two of the above possibilities
25 or 35

- sum of digits = 7
2 + 5 = 7

The number must be 25
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It takes Ms. Campbell 5 times as long as it takes Ms. Dorsey to paint a room. If Ms. Dorsey
Aliun [14]

Answer:

Dorsey = 4.8 hours

Campbell = 24 hours

Step-by-step explanation:

It takes "x" hours for Dorsey

So, it will take 5 times more for Campbell, so

It takes "5x" hours for Campbell

Rate is inverse of time, so rates are:

Dorsey: 1/x

Campbell: 1/5x

We know Rate * Time = Work

When together, it takes 4 hours to finish a work, so we can write:

(\frac{1}{x}+\frac{1}{5x})4=1

Solving for x, we get the time of Dorsey:

(\frac{1}{x}+\frac{1}{5x})4=1\\(\frac{1}{x}+\frac{1}{5x})=\frac{1}{4}\\\frac{5+1}{5x}=\frac{1}{4}\\\frac{6}{5x}=\frac{1}{4}\\5x=24\\x=4.8

Dorsey takes 4.8 hours alone

Campbell takes 4.8 * 5 = 24 hours alone

7 0
3 years ago
Simplify the equation 3×5x​
Setler79 [48]

Answer:

15x

3×5x

3×5 =15

15*x

15x

hope it's helpful ❤❤❤❤❤❤

THANK YOU.

7 0
2 years ago
Read 2 more answers
Plz help and explain thanks!!!
Mars2501 [29]
The answer to the question

3 0
3 years ago
Is 2 a solution to 4x - 3​
AlexFokin [52]

Answer:

2+4x-3=6

6-3=3

Answer:3

8 0
2 years ago
The square ABCD has side length 20 cm,
bogdanovich [222]

Answer:

AE=22.4

Step-by-step explanation:

BE is 1/2 of BC

BC is 20 cm                 All sides of a square are equal

BE = 1/2 BC                  Property of a midpoint.

BE = 10

Now just use Pythagorus

AB^2 + BE^2 = AE^2

AE^2 = 20^2 + 10^2   Perform the sqrs

AE^2 = 400 + 100      Add the terms

AE^2 = 500                Take the square root of both sides

√AE^2 = √500

AE = 22.36

AE ≈ 22.4

6 0
3 years ago
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