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Katena32 [7]
3 years ago
8

A car dealership has 240 cars in the parking lot and 17.5% of them are red. Of the other 6 colors in the lot, each color has the

same number of cars. If one of the colors is black, how many black cars are in the lot?​
Mathematics
1 answer:
Nonamiya [84]3 years ago
4 0

Answer:

Step-by-step explanation:

Ok guys I’m really confused

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A bowl contains 6 red balls, 4 blue balls, 3 white balls and 1 green ball. You pick two balls without replacement. a) What is th
Kay [80]

Answer:

3.5

Step-by-step explanation:

you want to add all of the balls together and then divide by 4 because that's how many color  balls there are

7 0
3 years ago
Let f(x)=x^3-x-1
alexira [117]
f(x) = x^3 - x - 1

To find the gradient of the tangent, we must first differentiate the function.

f'(x) = \frac{d}{dx}(x^3 - x - 1) = 3x^2 - 1

The gradient at x = 0 is given by evaluating f'(0).

f'(0) = 3(0)^2 - 1 = -1

The derivative of the function at this point is negative, which tells us <em>the function is decreasing at that point</em>.

The tangent to the line is a straight line, so we will have a linear equation of the form y = mx + c. We know the gradient, m, is equal to -1, so

y = -x + c

Now we need to substitute a point on the tangent into this equation to find c. We know a point when x = 0 lies on here. To find the y-coordinate of this point we need to evaluate f(0).

f(0) = (0)^3 - (0) - 1 = -1

So the point (0, -1) lies on the tangent. Substituting into the tangent equation:

y = -x + c \\\\ -1 = -(0) + c \\\\ -1 = c \\\\ \text{Equation of tangent is } \boxed{y = -x - 1}
6 0
3 years ago
PLZ help me i will give you ten points for it and for helping me on the rest of the 6 problems PLZ HELP!!
Helen [10]

<u>Answer:</u>

Yes, I believe so.

<u>Step-by-step explanation:</u>

When you look at this equation on a graphing table, it is a straight line that goes directly through the 0,0 cords.

I hope this helped!

If it's wrong I'm very sorry!

6 0
3 years ago
Which expression is equivalent to 2(x-3) +4x+3
Lemur [1.5K]

Answer:

6x - 3

Step-by-step explanation:

2(x-3) + 4x + 3

= 2x - 6 + 4x + 3 (Multiply out)

= 2x + 4x - 6 + 3 (Rearrange)

= 6x - 3

6 0
3 years ago
Read 2 more answers
The Sanchez family is planning a party. They want to budget spending $25 per guest. They already spent $200 on supplies and will
OverLord2011 [107]

Answer:

4

Step-by-step explanation:

20×25 = 500

20 guest

25 dollars per guest

75s+200= 500

75s = 300

S = 4

They can afford to buy 4 cases of snacks and stay within their budget.

3 0
2 years ago
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