These are the last two questions on my math homework, please help!

The average speed for the whole trip is required.

The average speed of the car is 100 km/h.

Let [tex]x[/tex] be the total distance of the trip.

Distance traveled for 2nd half

[tex]60\times 1=60\ \text{km}[/tex]

[tex]x-\dfrac{3}{5}x=60\\\Rightarrow \dfrac{1}{5}x=60\\\Rightarrow x=300\ \text{km}[/tex]

Total time

[tex]t=2+1=3\ \text{hours}[/tex]

Average speed is given by

[tex]v=\dfrac{300}{3}\\\Rightarrow v=100\ \text{km/h}[/tex]

The average speed of the car is 100 km/h.

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Answer:

Yes it does!

Step-by-step explanation:

Side A: 12 ft

Side B: 14 ft

By the pythagorean theorem: A^2 + B^2 = C^2

so 12^2 + 14^2 = 340

C = sqrt(340) = 18.44 which makes the statement true that the walls form a right triangle!!

Answer:

B 2n/3

Step-by-step explanation:

2n is double the value of n

the denominator of 3 means divide by 3

Answer:

I don't get the question 2

Answer:

B. d - 0.2

20%= 20/100= 0.2

so price= d-0.2

Step-by-step explanation:

Answer:

y = -6x + 2

Step-by-step explanation:

To find the slope, you do rise/run. To get to one point from another, you move one unit to the right, and six units down.

Now to find the y-intercept, you need to identify the point that meets in the y-axis. That would be 2.

Hope this helps!

Answer: y = -6x +2

Step-by-step explanation:

rise/run is 6/1 so slope = 6

y intercept of 2

Answer:

58

Step-by-step explanation:

Answer:

yes, it will fit.

Step-by-step explanation:

10 x 6 = 60ft

she has an area of 108ft

yes, it will fit because 60ft is smaller than 108ft.

Answer:

y = 2x - 4

Step-by-step explanation:

slope intercept form: y = ax + b

6x - 3y = 12

⇔ 6x - 12 = 3y

⇔ y = 2x - 4

Answer:

12 inches

Step-by-step explanation:

Perimeter = 2(L + W)

2(2 + 3) = 2 x 6

   = 12

Answer:

24 i think

Step-by-step explanation:

Answer:

this is hard sorry

Step-by-step explanation:

Answer:

Step-by-step explanation:

Use a table with x and y, every time x increases, it increases by 3, and every time y increases, it increases by 1

Repeated addition:

x                    y

0 + 3             0 + 1

3 + 3              1 +1

6 + 3              2 + 1

9 + 3               3 + 1

12 + 3             4 + 1

15 +3              5 + 1

Answer:

Answer:

Option 3

Step-by-step explanation:

Multiplying the x^2 always causes the opening on the parabola to get thinner. If you multiply it by a number less than 1 it will make it wider.

Answer:

72 songs

Step-by-step explanation:

Larry won the award because of 40 popular songs, but do not confuse this with the total songs that larry wrote.

Larry actually wrote 40+32 = 72 songs

Out of these 72 songs, 40 were popular and thus Larry got the award.

Answer:

Step-by-step explanation:

1) Check whether the graph is inclusive or exclusive. Inclusive graphs are equal to or greater/less than, whereas exclusive graphs are just greater/less than. A filled circle is inclusive, and a non-filled circle is exclusive. We see that in the graph, the circle is filled meaning it is inclusive. Secondly, we see that the number line goes forever when it is greater than(or equal to) 3. From these two pieces of information, we see that the answer is choice D.

Hope this helps! If not, feel free to ask any additional questions!

Answer:

1. mean:10 median:11 mode:13

2. mean:30 median:35 mode: 20

Answer:

1. Mean: 10 Median: 11 Mode: 13

2. Mean: 26.7 Median: 20.5 Mode: 20

Step-by-step explanation:

1. Mean: 6+7+11+13+13 = 50 then, 50/5 = 10

Median: 6, 7, 11, 13, 13 in the middle: 11

6- crossed

13- crossed

7- crossed

13- crossed

That leaves 11!

Mode: 13 appears two times. All the other numbers only appear once.

2. Mean: 0+20+20+30+40+70 = 160 then, 160/6 = 26.7 ( rounded to nearest tenth)

Median: 0, 20, 20, 30, 40, 70

0- crossed

70- crossed

20- crossed

40- crossed

20- crossed

30- crossed

They all are crossed, but the last 2 to be crossed are 20 and 30. The middle of those two numbers is 20.5 therefore, the median is 20.5!

Mode: 20 appears twice while the rest only appears once.

I hope this helps, good luck! :)

Answer:

what are we looking for?

I'm not exactly sure what you need to find so I'll just put this:

If you need to find the area:

A = l x 2

A = 11 x 7.7

A = 84.7 cm^2

If you need to find the perimeter:

P = 2(l + w)

P = 2(11 + 7.7)

P = 22 + 15.4

P = 37.4 cm

Note: It's okay to ask for help when you need it, even if your task is easy!   :)

Answer: B. Graph of 2 lines that intersect at one point. Both lines are solid. One line passes through (-2,2) and (0,3) and is shaded below the line.

y < = 1/2x + 3...(-2,2)                y < = 1/2x + 3....(0,3)

2 < = 1/2(-2) + 3                        3 < = 1/2(0) + 3

2 < = -1 + 3                                3 < = 0 + 3

2 < = 2 (correct)                        3 < = 3 (correct)

The other line passes through points (0,1) and (1,-2) and is shaded above the line.

y > = -3x + 1...(0,1)            y > = -3x + 1...(1,-2)

1 > = -3(0) + 1                   -2 > = -3(1) + 1

1 > = 0 + 1                         -2 > = -3 + 1

1 > = 1 (correct)                 -2 > = -2 (correct)

Step-by-step explanation:

Answer:

−3f

Step-by-step explanation:

Move −3 to the left of f.

−3f

Answer:

its 11

Step-by-step explanation:

the mode is the difference between the highest and lowest date input

19-8=11

Answer:

11

Step-by-step explanation:

Answer:

so basically

the area of the square; (5cm)^2 = 25cm^5

the area of the triangle; (4cm.5cm)/2 = 10cm^2

which means that r = √25cm^2/10cm^2 = √25/10 cm^2 or √10/25 cm^2

english is not my first language so i do not know what combined means but if u explain a little more i will try to help u

-> ok edit edit;

1cm/5in. = r

5cm => 25in.

z^2= area of a square so

25in.25in= 625 in^2

4cm => 20in.

5cm => 25in.

h.b/2 = area of a triangle so

20in.25in./2 = 250in.^2

250in.^2 + 625in.^2 = 875in.^2

so answer B

Answer:

8/3 or 2 2/3

Step-by-step explanation:

2 x 1/3 is done first because it is in parenthesis

thus making the problem 4/3 x 2/3

thus equaling 8/3 or 2 2/3 in mixed number form

Answer:

the range is 24

Step-by-step explanation:

subtract take 7 from 31

Answer:

the range is 24

Step-by-step explanation:

subtract take 7 from 31

Answer:

Is this the full question, what are the infrences?

Step-by-step explanation:

If you give me more I will give a answer

Answer:

C

Step-by-step explanation:

Answer:

D. It describes the distance between 6 and -6 on the number line.

Step-by-step explanation:

A. The absolute value of -6 is 6 because the absolute value is the positive or real number of a negative number.

B. The distance between -6 to 0 is 6.

C. [-6] = 6

D. The distance between 6 and -6 is 12.

-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6