The following questions are adding and subtracting polynomials

Mathematics

1 answer:

nadezda [96]2 years ago

7 0

These are the answers, and how I grouped them up.

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ace car rental rents cars for x dollars per day plus y dollars for each mile driven carlos renteda car for a 4 days drove 100 mi

Yuliya22 [10]

$T=xd+ym\\x(4)+y(100)=(120)\\x(1)+y(240)=(80)\\\\4x+960y=320\\4x+100y=120\\860y=200\\y=\frac{200}{860}\\y=\frac{10}{43}\\\\x+240(\frac{10}{43})=80\\x+\frac{2400}{43}=\frac{3440}{43}\\x=\frac{1040}{43}$

x = 1040/43 = $24.19 per day.

y = 10/43 = $0.23 per mile.

4 0

3 years ago

Solve |3x - 4| = 6 A. {-10/3, 10/3} B. {-2/3, 10/3} C. {-2/3, 2/3}

ratelena [41]

B. {-2/3, 10/3}
|3x-4|=6
3x=10
X=10/3

-3x=2
X=-2/3

5 0

3 years ago

A rectangular pool is 21 meters wide and 28 meters long. If you swim diagonally across the pool, how many meters would you be sw

babunello [35]

To figure this out, you must use the Pythagorean theorem.
That is were you take the width of the opject, and square it (21 squared). and take the length of the object and square it (28 squared),
then add those together. (21 squared + 28 squared) = NUMBER
then take that number that you got, and find the square root of it. (√NUMBER)
and that's your answer.

So it would be: 35 meters

6 0

2 years ago

PLEASE HELP I NEED HELP ITS MULTIPLYING FRIACTIONS AND MIXED FRACTIONS

salantis [7]

Hello! the answers are (going across) 72/90 , 6/21 , 11/24 , 100/4 , 121/12 , 175/48
if u need me to explain how i got this, feel free to message me ! have a nice day:)<3

7 0

2 years ago

Read 2 more answers

What is the probability of a customer choosing a chocolate cone?

mestny [16]

For a customer to choose a chocolate cone it need to choose "Chocolate" (0.35 probability) and choose a cone (0.4 probability given he chose chocolate).

So, the get the probability of both, we multiply their probabilities:

$P=0.35\cdot0.4=0.14$

Thus, the probability of a customer choosing a chocolate cone is, based on the image, 0.14 or 14%.

3 0

11 months ago