3 years ago

If 40% of a number is 28, find 10% of that number.

Mathematics

2 answers:

Alika [10]3 years ago

5 0

Answer: 7

Step-by-step explanation:

Igoryamba3 years ago

5 0

Answer: 7
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Which of the following best describes the equation y= -2/7x +12

Lady bird [3.3K]

Linear, because the graph of the line is just a straight line without any curves, and the power of x is 1. If x was raised to the second, third, fourth, etc. power, it would be a nonlinear equation.

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3 years ago

Find the common difference of the arithmetic sequence –8, -2, 4, ...

ELEN [110]

Answer:

Step-by-step explanation:

$a_1=-8\\a_2=-2\\a_3=4\\\\d=a_2-a_1=a_3-a_2=...=a_n-a_{n-1}\qquad\qquad \{n\ge2\}\\\\\left{\big{a_2-a_1=-2-(-8)=-2+8=6}\atop\big{a_3-a_2=4-(-2)=4+2=6\quad\ \,}\right\}\implies\ \ d=6$