140% of 15 is calculated by converting the percentage to a decimal (1.4) and then multiplying it by 15, giving a result of 21.
To determine 140% of 15, the process involves converting the percentage to a decimal and multiplying it by the given number. In the first step, 140% is transformed into 1.4 by dividing it by 100. Next, 15 is multiplied by 1.4. Executing this multiplication yields a final result of 21. The calculation follows a two-step procedure: conversion to a decimal and multiplication. This method ensures accurate determination of the desired percentage. In this case, the outcome of 140% of 15 is precisely 21, showcasing the systematic approach used in the mathematical computation.
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B: 2x + y = -6
C:x - 2y = 7
D:8x - 4y = -5
Answer:
Step-by-step explanation:
A proportional relationship is described by the equation ...
y = kx
where k is the constant of proportionality.
__
For a constant of proportionality of 0.8, the relation is ...
y = 0.8x
For a constant of proportionality of 0.9, the relation is ...
y = 0.9x
Property to rewrite 8(16) + 8(6). Then evaluate the
expression.
Answer:
see explanation
Step-by-step explanation:
8(16) + 8(6) ← factor out 8 from each term
= 8(16 + 6)
= 8(22)
= 8 × 22
= 176
Answer:
To travel 20 Km, the hybrid car needs 0.3125 gallons of fuel.
Step-by-step explanation:
Proportions
The hybrid car can travel 40 miles per gallon.
Since one mile is equivalent to 1.6 Km, the distance traveled per gallon is 40*1.6 = 64 Km.
Now the distance is expressed in Km, we can find the gallons needed to travel 20 Km, by calculating 20/64 = 0.3125.
To travel 20 Km, the hybrid car needs 0.3125 gallons of fuel.
yes; 7
yes; –7
yes; 14
no
6. What is the 12th term of the sequence 10, 6, 2, …?
–16
–24
–34
–38
7. Find the missing term of the arithmetic sequence 22, ___ , 34, ...
46
16
28
40
Answer:
5. The correct option is 4. No, the given sequence is not arithmetic.
6.The option 3 is correct and the 12th term of the sequence is -34.
7. The option 3 is correct and the missing term of the arithmetic sequence is 28.
Step-by-step explanation:
5.
The given sequence is
Since , therefore it is not an arithmetic sequence. Option 4 is correct.
6.
The given sequence is
First term is 10 and common difference is -4.
The formula for nth term is
Therefore option 3 is correct and the 12th term of the sequence is -34.
7.
The given sequence is
22, ___ , 34, ...
In an arithmetic sequence
Therefore option 3 is correct and the missing term of the arithmetic sequence is 28.