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Zigmanuir [339]
3 years ago
13

Plz guyss helpp;( The question is above

Mathematics
1 answer:
IceJOKER [234]3 years ago
7 0

Answer:

40

Step-by-step explanation:

The frequency column gives the number of houses in the sample, then

number of houses = 5 + 11 + 23 + 1 = 40

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30% of number A is 10 more than 20% of number B. 30% of number B is 35 more than 20% of number A. Find the numbers A and B.
anygoal [31]

Answer:

A = 76.85

B =65.28

Step-by-step explanation:

(30/100)A = 10 + (20/100)B

0.3A - 0.2B = 10 ...... equation (i)

(30/100)B + 35 = (20/100)A

0.2A - 0.3B = 35 ........ equation (ii)

From equation (i)

0.3A = 10 - 0.2B

A = (10 - 0.2b) / 0.3

A = 33.33 - 0.67B ........equation (iii)

Put equation (iii) into equation (ii)

0.2(33.33 - 0.67B) - 0.3B = 35

6.67 - 0.134B - 0.3B = 35

0.434B = 35 - 6.67

B = 28.33 / 0.434

B = 65. 275 = 65.28

Put B = 65.28 into equation (i)

0.3A - 0.2B = 10

0.3A - 0.2(65.28) = 10

0.3A - 13.056 = 10

0.3A = 10 + 13.056

A = 23.056/ 0.3

A = 76.85

5 0
3 years ago
What is the maximum number of snowmen they can make?
Anastasy [175]
To answer this question, you do 5 2/3 divided by 1/2. First, change 5 2/3 to 17/3. Then, use the reciprocal method by doing 17/3 times 2/1, which gives you 34/3. That’s 11.3 repeating, so they can make 11 whole snowmen.
3 0
3 years ago
Sweet tea purchased a new pair of jeans to wear to the battle of the bands on sale at 40% off he saved $20 what was the regular
DIA [1.3K]
$50 
20 x 2 = 40, which is 80% 
and then 20 divided by 2 is 10; so you add that to 40 and you get your answer 
8 0
3 years ago
Please help me on this question! ​
Fofino [41]

Answer:

L = √(5² + 10² + 7²) = √174 in

Step-by-step explanation:

6 0
3 years ago
What is the square root of 45 rounded to the nearest hundredth
lakkis [162]
The square root of 45 is simplified to 3 root 5. Rounded in decimal form, 6.708
4 0
3 years ago
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