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4 years ago

18=x/3+6 A) 4 B)12 C)36 D)3

Mathematics

2 answers:

Vesna [10]4 years ago

7 0

Answer:

Step-by-step explanation:

Flip your eq. x/3 + 6 = 18.

Solve (Number on one, variable on other)

+6 -6 = 0. 18-6=12.

Multiply.

12 * 3 = 36.

GuDViN [60]4 years ago

5 0

Answer:

C) 36

Step-by-step explanation:

18=x/3 +6

-6 -6

=12 x3=36 X/3 x3=0

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Cumulative price change 105.96%

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3 years ago

Answer the following

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Answer:

Ex 1: f(2)-f(1)+f(1÷2)=9÷4

Step-by-step explanation:

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3 years ago

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frez [133]

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6 0

4 years ago

Read 2 more answers

For which rational expressions is –5 an excluded value? Check all that apply.

Anika [276]

Answer:

option C and F

Step-by-step explanation:

Given excluded value is x=-5

Excluded value are the values that makes the denominator 0

Now we check out each option and see , in which option the denominator becomes 0 when x=-5

When denominator has (x+5) then when we plug in x=-5

(x+5) becomes (-5+5) =0

So we look at the options that has factor (x+5) in the denominator

In option C we have x^2 -25

When we plug in -5 for x then it becomes (-5)^2 - 25 =0

So x=-5 makes the denominator 0

-5 is an excluded value for option C

Last option f has x+5 in the denominator

x=-5 make the denominator 0

so , -5 is an excluded value for option F

3 0

3 years ago

If you rent a car for one day and drive 225 miles, the cost is $80. If you drive 350 miles in one day, the cost is $105. Let cm)

kolezko [41]

Answer:

a) $(x_1 = 225, y_1 = 80) , (x_2 = 350, y_2 = 105)$

And we want to find a function:

$C (m) = b_1 m + b_0$

We can find the slope with this formula:

$b_1= \frac{105-80}{350-225}= \frac{25}{125}=0.2$

And then we can use the point $(x_1 = 225, y_1 = 80)$ to find the intercept $b_o$ and we got:

$80 = 0.2*225 +b_0$

$b_0 = 80-45 = 35$

So then the linear function is given by:

$C(m) = 0.2 m + 35$

b) For this case we have that m = 475 so we can replace into the function to find the cost like this:

$C(m =475) = 0.2*475 + 35 = 130$

And for the other case we have a cost of 155 and we want to find the number of miles associated so we can do this:

$155 = 0.2m + 35$

$155-35= 120 = 0.2 m$

$m= \frac{120}{0.2}= 600 mi$

Step-by-step explanation:

For this case we can define the following notation:

m= represent the miles travelled

C= represent the cost

Part a

For this case we have the following two points given:

$(x_1 = 225, y_1 = 80) , (x_2 = 350, y_2 = 105)$

And we want to find a function:

$C (m) = b_1 m + b_0$

We can find the slope with this formula:

$b_1= \frac{105-80}{350-225}= \frac{25}{125}=0.2$

And then we can use the point $(x_1 = 225, y_1 = 80)$ to find the intercept $b_o$ and we got:

$80 = 0.2*225 +b_0$

$b_0 = 80-45 = 35$

So then the linear function is given by:

$C(m) = 0.2 m + 35$

Part b

For this case we have that m = 475 so we can replace into the function to find the cost like this:

$C(m =475) = 0.2*475 + 35 = 130$

And for the other case we have a cost of 155 and we want to find the number of miles associated so we can do this:

$155 = 0.2m + 35$

$155-35= 120 = 0.2 m$

$m= \frac{120}{0.2}= 600 mi$

6 0

3 years ago