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N76 [4]
3 years ago
12

Input the equation of the given line in slope-intercept form. The line with m = 2 and b = -4.

Mathematics
1 answer:
lukranit [14]3 years ago
4 0

Answer:

y = 2x - 4

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + b ( m is the slope and b the y- intercept )

here m = 2 and b = - 4

y = 2x - 4 ← equation of line

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Last week the cost of a pair of socks was $3.25. This week they are on sale for $1.95. What is the percent change from last week
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The socks are 40% off, and it is decreased to 60%.

Step-by-step explanation:

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3 years ago
Translate into an algebraic expression 40 increased by x%
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x+2/5x

Step-by-step explanation:

x%of 40 is 2/5x

...40 increased by x% of it self = x+2/5x

6 0
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A squirrel found 48 acorns in a 3-day period. Each day the squirrel found 5 more acorns than the day before. How many acorns did
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7 0
3 years ago
If4 times the reciprocal of a number is 3 more than 5/2 times the reciprocal of that number find the number Show your work
Oliga [24]
x-number\\x\neq 0\\ \\
4 \cdot \frac1x=3+\frac52 \cdot \frac1x\\
\frac4x=3+\frac5{2x}\ / \cdot 2x\\
8=6x+5\\
6x=8-5\\
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x=\frac36=\frac12

7 0
3 years ago
Read 2 more answers
2
Gemiola [76]

9514 1404 393

Answer:

  • 14 nickels
  • 6 dimes

Step-by-step explanation:

The system of equations can be written ...

  n + d = 20 . . . . . . . . coins in the jar

  5n +10d = 130 . . . . . value in cents

_____

Using the first equation, we can write an expression for n:

  n = 20 -d

We can substitute this into the second equation:

  5(20 -d) +10d = 130

  100 +5d = 130 . . . . . . simplify

  5d = 30 . . . . . . . . . . . . subtract 100

  d = 6 . . . . . . . . . . . . divide by 5

  n = 20-d = 14

The jar contains 14 nickels and 6 dimes.

7 0
3 years ago
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