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3 years ago

What do i do for this problem

Mathematics

2 answers:

Andrei [34K]3 years ago

7 0

Answer:

20.

Step-by-step explanation:

We have been given an expression $\frac{c}{5}$ and we are supposed to evaluate our given expression when $c=100$

To evaluate our given expression, we need to substitute $c=100$ in our given expression.

$\frac{100}{5}$

Upon dividing 100 by 5 we will get,

$20$

Therefore, after evaluating our given expression we will get 20 as our answer.

Margaret [11]3 years ago

4 0

<span>The answer would be 20.

The question is asking you to find the value of the expression for when c = 100, so we have to put 100 where c is in the equation. Given that fact, we start with c/5, then put the 100 in for c.
c/5 = ??
100/5 = 20. </span>

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A customer requires a car service for 80 miles,

Xelga [282]

Answer:

$25

Step-by-step explanation:

Derive an equation to represent the cost of using each ride.

Sal's Car Rides:

Using 2 pairs of values from the table, (0, 40) and (20, 80), find the slope, m (fee per mile).

$m = \frac{y_2 - y_1}{x_2 - x_1} = \frac{80 - 40}{20 - 0} = \frac{40}{20} = 2$

The y-intercept, b, is the one-time fee for fuel. This is the value of the cost ($) when number of miles traveled is 0.

Thus, b = 40.

Substitute m = 2, and b = 40 into $y = mx + b$ .

Equation for the total cost for Sal's Car Rides would be:

$y = 2x + 40$ .

Find the total cost to be charged if a customer requires the a car service for 80 miles if he chooses Sal's Car Rides.

Simply substitute x = 80 in $y = 2x + 40$ .

$y = 2(80) + 40 = 200$

The customer would pay $200.

Ray's Limo:

The equation that represents the total cost (y) to be charged for number of miles (x), given that $2.50 is charged per mile plus a one-time fee of $25 for fuel, would be:

$y = 2.5x + 25$ .

If a customer uses Ray's Limo services for 80 miles, the cost charged would be:

Substitute x = 80 in $y = 2.5x + 25$ .

Thus:

$y = 2.5(80) + 25 = 225$ .

The fee the customer would pay = $225 for using Ray's Limo services.

Therefore, if the customer takes Sal's Car Rides instead of Ray's Limo, he would save, $225 - $200 = $25.

The customer would save $25.

8 0

3 years ago

15. find the values of x and y

zloy xaker [14]

Answer:

y = 8

x = 21

Step-by-step explanation:

Find x first. Since there is a straight line, we can conclude it's equal to 180 degrees.

11x + 10 -61 = 180

Add 10 to negative 61.

11x - 51 = 180

Add 51 to both sides.

11x = 231

Divide 11 both sides

x = 21.

Now put x in the equations to solve.

This is for the small angle on the right side.

(21+10) = 31

This is for the big angle on the right side.

(10(21) - 61)

210 - 61 = 149.

Now for the other side, we know the degree for the smaller side on the left side since it's a vertical angle.

31 degrees for top left angle. Since we know this side is 180 just subtract 31 from 180 and you'll get 149.

18y + 5 = 149

Subtract 5 both sides.

18y = 144

y = 8.

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3 years ago

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3 years ago

Greater than 7 tens and less than 8 tens. The number has 4 ones

prohojiy [21]

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3 years ago

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PtichkaEL [24]

Answer:

x= 102 degrees

Step-by-step explanation:

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3 years ago