The answer is: [C]: " 3 " .
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Explanation:
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4x - 1 = 2x + 5 ; Solve for "x" ;
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Subtract "2x" from each side of the equation; and add "1" to each side of the equation:
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4x - 1 - 2x + 1 = 2x + 5 - 2x + 1 ;
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2x = 6 ;
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Divide EACH side of the equation by "2" ; to isolate "x" on ONE side of the equation; and to solve for "x" ;
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2x / 2 = 6 / 2 ;
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x = 3 .
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The answer is: [C]: " 3 " .
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Answer:
13.5 = 9.5 + x
x=4
Step-by-step explanation:
In this problem, the price of the baseball cap, which is $9.50, and a baseball, whose price is unknown (and therefore must be the variable), total $13.50. So, to set up the equation add the two prices and set them equal to the total, 9.5+x=13.5.
Then, using the subtraction property of equality subtract 9.5 from both sides. This means x=4, so the baseball cost 4 dollars.
Answer:
23 + 0
Step-by-step explanation:
calculator
Answer:
n<50
Step-by-step explanation:
7/2*5n + 14<49
7n/2*5+14<49
(7n)+(2*5)14/2*5 <49
7n+10*14/2*5 <49
7n+140/2*5 <49
7n+140/10 <49
7n+140 < 10*49
7n+140 < 490
(7n+140)+(-140)<490+(-140)
7n+140-140<490-140
7n<350
7n/7 < 350/7
n<2*5^2*7/7
n<2*5^2
n<2*25
n<50
Answer:
C
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = 
with (x₁, y₁ ) = (- 8, - 42 ) and (x₂, y₂ ) = (- 3, - 17 ) ← 2 ordered pairs from the table
m = 
= 
= 
= 5
The line crosses the y- intercept at (0, - 2 ) , then
y = 5x - 2 → C
