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Lana71 [14]
3 years ago
15

The value of x can be 3 or 7.The value of y can be 4 or 9.a. List the possible values of xy​

Mathematics
1 answer:
aleksklad [387]3 years ago
4 0

Answer:

7, 27, 28, 63

Step-by-step explanation:

The possible values of xy are

3 × 4 = 12

3 × 9 = 27

7 × 4 = 28

7 × 9 = 63

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Mr. Brown owned a house, which he rented for $60 a month. The house was assessed at $9000. In 1975 the rate of taxation was incr
Alexandra [31]
We first calculate the percentage increase on the tax

Old value = 25×9 = 225 ⇒ The value 9 represents the 9 lots of thousands of the house's value
New value = 28×9 = 252

Increase in tax = 252 - 225 =27  
Percentage increase = (27÷225) ×100 = 12%

The amount of yearly rent would be then increased by 12%

Monthly rent = $60
Yearly rent = 60×12 = $720
Increase by 12% = 720×1.12 = 806.4 ⇒ The value 1.12 is the multiplier, obtained from 100%+12%=112%=1.12

The monthly rent is 806.4÷12 = $67.20 which is an increase of $7.20 per month
5 0
3 years ago
0.3% of a country has a certain disease. The test for the disease has a sensitivity of 92% (i.e., of those we know have the dise
butalik [34]

Answer:

0.95988 (Accuracy of the test )

Step-by-step explanation:

To determine the accuracy of this test we have to list out the given values

Prevalence rate of the disease = 0.3% = 0.003

sensitivity rate of the disease = 92% = 0.92

specificity rate for the test = 96% = 0.96

The accuracy of the test can be found using this equation

Accuracy = sensitivity * prevalence + specificity ( 1 - prevalence )

                = 0.92 * 0.003 + 0.96 ( 1 - 0.003 )

                = 0.00276 + 0.95712

                = 0.95988

6 0
3 years ago
A division of a company that manufactures widgets has been given an annual operating budget of $82,500. The factory's operating
Scrat [10]

Answer: $92,525

Step-by-step explanation:

7 0
3 years ago
25% as a fraction and a decimal
slamgirl [31]

Answer:

Fraction: 1/4 Decimal: 0.25

Step-by-step explanation:

4 0
3 years ago
Which percent is equivalent to ?
AleksAgata [21]
It would be 340%. First, you need to find out what the fraction is for 2/5. 2/5 as a decimal would be .4. Next you put that back with the three which is 3.4. After that, you need to turn that into a percentage by multiplying it by 100 which then equals 340. add the % to it and that gives you 340%.
3 0
3 years ago
Read 2 more answers
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