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notsponge [240]
3 years ago
7

A number plus twice the number is equal to three times the number

Mathematics
2 answers:
Helga [31]3 years ago
5 0
Let the unknown value be x
A number > x
Plus> x+?
twice>x+2
the number>x+2x
is equal to>x+2x=
three times the number> x+2x=3x
3x+3x



Lina20 [59]3 years ago
3 0
a+2a=3a
3a=3a
The answer is infinetly many solutions.
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How do I solve this? i missed ONE class
lisov135 [29]

Answer:

a < 42

Step-by-step explanation:

Question : 4a + 9a - 6a < 42

Answer :

4a + 9a - 6a < 42

Combine like terms.

13a - 6a < 42

7a < 42

Divide both sides by 7.

a < 42

Hope this helps you :-)

Let me know if you have any other questions :-)

6 0
2 years ago
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4 0
2 years ago
When 2 less than 3 lots of a number is doubled the result is 5
Ksivusya [100]
(3n)-2=5

Move all numbers without a variable to the right side of the equation
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7 0
3 years ago
A cannon ball is launched at 6 feet per second from the top of a platform 12 feet above the ground.
AleksAgata [21]
A.) y = ut - 1/2gt^2 + 12
y = 6t - 1/2(9.8)t^2 + 12
y = 6t - 4.9t^2 + 12

b.) The y-intercept is 12

c.) The y-intercept represent the height of the ball at time t = 0

d.) At the time the ball reaches the ground, y = 0
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7 0
3 years ago
Solve the area formula for h
White raven [17]

The answer is C: h = \frac{2A}{b}

Starting with the given formula for the area, A = 1/2hb, the first step is to isolate h by using the multiplicative inverse of b, which is \frac{1}{b} on both sides of the equation:

A(\frac{1}{b})  =  \frac{1}{2}hb* (\frac{1}{b})

The result will be:

\frac{A}{b} = \frac{1}{2}h

The last step is to use the multiplicative inverse of \frac{1}{2}, which is 2 or \frac{2}{1} to further isolate the variable <em>h </em>:

\frac{A}{b} (\frac{2}{1}) = (\frac{2}{1}) \frac{1}{2} h

The formula for h will be:

h = \frac{2A}{b}  which is the option C in your question.

4 0
3 years ago
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