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mr_godi [17]
3 years ago
10

Select the equation(s), where 9 is a solution.

Mathematics
1 answer:
seraphim [82]3 years ago
7 0

Answer:

a and b

Step-by-step explanation:

a)

9+3x=36

3x=27

<em>x=9</em>

b)

57=6x+3

54=6x

<em>9=x</em>

c)

4x+3=43

4x=40

x=10

d)

4x=49

x=12.25

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Step-by-step explanation:

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3 years ago
If I = prt; p = 350, r = 6%, I = 42, then t = 2 A. True B. False
Liono4ka [1.6K]

t = 2 → A true

given I = PRT

to find T , divide both sides by PR

note that R = 6% = \frac{6}{100} = 0.06

T = \frac{I}{PR} = 42/( 350 × 0.06 ) = 2



4 0
3 years ago
Find the slope of the line that passes through (-19, -33) and (47, 5)
Vera_Pavlovna [14]
Hello there! Slope is rise/run. The formula for finding slope is y2 - y1 / x2 - x1, where you subtract the first x and y-coordinates from the second x and y-coordinates. In other words, the order that the coordinates show up for this problem will be used in that order. For this case, here are the numbers that will be used for each.

y2: 5
y1 : -33
x2: 47
x1: -19

Let's plug it in to get 5 - (-33) / 47 - (-19). Now, let's subtract. Just by looking at the numbers, we will actually be adding the numbers, because when you add a negative number, you actually add. So 5 + 33 is 38. 47 + 19 is 66. 38/66 is 19/33 in simplest form. There. The slope of the line is 19/33.
8 0
3 years ago
The distance you travel varies directly with the amount of gas you use. You can travel 300 miles on 12 gallons of gas.
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3 0
3 years ago
Please show me the work thank you
KiRa [710]
Answer: B. x < 25

Remember: when multiplying or dividing negatives, flip the inequality sign.

3(x + 3) > 4(x - 4)                 Distributive Property
3x + 9 > 4x - 16                   Subtract 4x from both sides
-x + 9 > -16                          Subtract 9 from both sides
-x > -25                               Divide by -1 to both sides and flip the sign
x < 25                                 Answer!
 
6 0
3 years ago
Read 2 more answers
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