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Savatey [412]
3 years ago
7

How old am I if 400 reduced by 2 times my age is 244 now PLEASE HELP!!!! 12 points!!

Mathematics
2 answers:
Volgvan3 years ago
8 0
X= your age 400-2x=244 -2x=-156 x=78 you are 78 years old
lubasha [3.4K]3 years ago
3 0
400-2x=244 -2x=244-400 -2x=-156 -x=-156/2 -x=-78 x=78
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Law of sines: How many distinct triangles can be formed for which m∠A = 75°, a = 2, and b = 3?
butalik [34]
According to the law of sines:

\frac{a}{sin(A)} = \frac{b}{sin(B)}

Using the given values, we can find the angle B and find the number of possible triangles that can be formed.

\frac{2}{sin(75)}= \frac{3}{sin(B)} \\  \\ 
sin(B)=3* \frac{sin75}{2}  \\  \\ 
sin(B)=1.45 \\  \\ 
B=sin^{-1} (1.45)

The range of sin is from -1 to 1. The above expression does not yield any possible value of B, as sin of no angle can be equal to 1.45.

Therefore, we can conclude that no triangle exists with the given conditions.
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3 years ago
A boat can travel 105 miles on 15 gallons of gasoline. How much gasoline will it need to go 140 miles?
Mrac [35]

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20 gallons

Step-by-step explanation:

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4 0
3 years ago
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Find the equation of the line that is parallel to the line x + 5y = 10 and passes through the point (1, 3).
shusha [124]

Answer:

see explanation

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 )

Rearrange x + 5y = 10 into this form

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5y = - x + 10 ( divide all terms by 5 )

y = - \frac{1}{5} x +2 ← in slope- intercept form

with slope m = - \frac{1}{5}

• Parallel lines have equal slopes, hence

y = - \frac{1}{5} x + c ← is the partial equation of the parallel line

To find c substitute (1, 3) into the partial equation

3 = - \frac{1}{5} + c ⇒ c = \frac{16}{5}

y = - \frac{1}{5} x + \frac{16}{5} ← equation of parallel line

3 0
2 years ago
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Here is the questions sorry
xxMikexx [17]

Answer:

I think the answer is about 10

Step-by-step explanation:

6 0
3 years ago
5. Write an expression equivalent to x - 3y + 4.​
Pepsi [2]

Answer:

2x - 6y + 8

Step-by-step explanation:

7 0
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