Bart drove 700 miles in 12 hours. What was his average speed?

Answer:

Step-by-step explanation:

Check by direct substitution.  If we begin by checking x = 3/2, we substitute 3/2 for x in (3x - 2)(x + 5), obtaining (9/2 - 2)(3/2 + 5), which is NOT zero.  Therefore x = 3/2 is not a solution.

(3*5−2)(5+5)=0  False.  x = 5 is not a solution.

(3*[-5]−2)([-5+5)=0  True.  x = -5 is a solution

x = 2/3:  (3*2/3 - 2)( ) = 0.  True  x = 2/3 is a solution

x = -2/3:  ( )( ) = -17 1/3;  so x = -2/3 is not a solution

x = -3/2:  ( ) ( ) = -22 3/4; so x = -3/2 is not a soution

Answer:

-27

Hope this helps.

I really got nothing else to say so um.

Goodbye

Answer:

32/40, 4/5

Step-by-step explanation:

All these ratios are follow the ratio 4:5 meaning they are equivalent to "64:80".

8:12=0.666667

16"24=0.666667

120:160=0.75

Answer:

32/40 and 4/5

Step-by-step explanation:

I took the test (sadly) :}

Answer:

34

Step-by-step explanation:

40 * .15= 6

40-6 = 34

okkk so you do 40 * .15 because you just put a decimal point before all percentages to convert it into number

40*.15= 6

then subtract 6 to the original amount

40-6=34

34 students went on the trip on thursday cause 6 students got killed by bears in the last trip.

Answer:

I think

Step-by-step explanation:

I think its 3 ^7 but i could be wronf

Answer: 2.5

Step-by-step explanation:

I took the test

Answer: $9600 revenue and $3600 profit from the toys

Step-by-step explanation: used a markup calculator

Answer:

2

Step-by-step explanation:

Answer:Solve x=−5−y;2+y=−x+3

I will solve your system by substitution.

x=−y−5;y+2=−x+3

Step: Solvex=−y−5for x:

Step: Substitute−y−5forxiny+2=−x+3:

y+2=−x+3

y+2=−(−y−5)+3

y+2=y+8(Simplify both sides of the equation)

y+2+−y=y+8+−y(Add -y to both sides)

2=8

2+−2=8+−2(Add -2 to both sides)

0=6

Step-by-step explanation:

Answer:parallel

Step-by-step explanation:

Answer:

B. Area B = 17 x 3 C. Area A=11 x 12

Answer:

Step-by-step explanation:

1a. 2x - 4y = 2

   -x  + 4y = 3

x = 5

-5 + 4y = 3

4y = 8

y = 2

(5, 2)

1b. 2x + 3y=1

     -2x + 2y = -6

      5y = -5

       y = -1

     2x - 3 = 1

    2x = 4

    x = 2

   (2, -1)

2a.  x + 2y = 4

       2x - 5y = -1

     -2x - 4y = -8

      2x -  5y = -1

    -9y = -9

      y= 1

2x - 5 = -1

 2x = 4

  x = 2

(2, 1)

2b. 4x + 2y = 4

       x - 2y = -5

       5x = -1

        x= -1/5

    -1/5 - 2y = -5

    -2y = -4 4/5

      y= 12/5

(-1/5, 12/5)

3. 5x + 3y = 85

  11x + 5y = 163

25x + 15y = 425

-33x - 15y = -489

 -8x = -64

x = 8 regular

5(8) + 3y = 85

40 + 3y = 85

3y = 45

y = 15 mini bouquets    

(8 regular, 15 mini bouquets)

4a. 6x + 12y = -6

     18x - 12y = - 162

24x = -168

x = -7

3(-7) - 2y = -27

-21 - 2y = -27

-2y = -6

y= 3

(-7, 3)

4b. 3(6 -y) - 2y = 38

     18 - 3y - 2y = 38

     18 - 5y = 38

    -5y = 20

    y = -4

x = 6 + 4

x = 10

(10, -4)

Answer: 1/5

Step-by-step explanation:

Let's find the slope between your two points.

(2,4);(−3,3)

(x1,y1)=(2,4)

(x2,y2)=(−3,3)

Use the slope formula:

m=y2−y1/x2−x1

=3−4/−3−2

=−1/−5

=1/5

Answer:

"Evaluation" mostly means "simplifying an expression down to a single numerical value". Sometimes you will be given a numerical expression, wher all you have to do is simplify; that is more of an order-of-operations kind of question. In this lesson, I'll concentrate on the "plug and chug" aspect of evaluation: plugging in values for variables, and "chugging" my way to the simplified answer.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

40b

Step-by-step explanation:

40b-56+56

40b

hope this helps

Answer:0

Step-by-step explanation: I had used my Scientific calculator

Answer:

A=35, B=55, and C=25

Step-by-step explanation:

Angle A and the angle next to it are linear pairs, so you can subtract 145 from 180.

if you already know Angle A, and that the other angle is 90 degress, you can add 90+35 and subtract it from 180 to get Angle B

Angle C is paired with the angle across from it (I forgot what the term is called) so it is 25 degrees.

Answer:

360 degrees over n

Step-by-step explanation:

Answer:

384

Step-by-step explanation:

A = (a+b) · h/2

Answer:

the form is y = mx + b an db is the y intercept. the y intercept is 1 so it is not a or c. The slope is positive, so it is b!!!

Step-by-step explanation:

Answer: (-4,-2)

(2y)-7y=10

-5y=10

y=-2

X=2(-2)

X=-4

(-4)-7(-2)=10

-4+14=10

10=10

Answer:

The measure of what???

Answer:

well we have school online, so yea i guess it still works, unless you're talking about something else lol

Answer:

yeah minework

Step-by-step explanation:

Answer: 50 miles

Find t:

0.70t = 35. Dividing both sides by 0.70, we get:

35

t = ----------- = 50

0.70

The total trip length is 50 miles.

Answer:

14.3 and -1.2

Step-by-step explanation:

To find the distance between both points subtract the larger point from the smallest and that should give you the answer.

Answer:

10

Step-by-step explanation:

2. 2. 2

6 +8 = C

36+64=100

Square root 100=10

Answer:

-10

Step-by-step explanation:

here is my explanation i count the distance from store to home for B

and that give me 8^2

for A i count the distance home to school give me 6^2

I add it 6^2 + 8^2 = -10

so C= -10

let me know if is correct

Answer:

idontkn oww  atyou rsayin g

h

Step-by-step explanation:

Answer

Step-by-step explanation:

1. 9.2

2.4.1

3.9.2

4.43.3

Answer:

1. r= 4.6 in, d= 4.6×2=9.3in

2. d= 8.2 cm, r= 8.2/2=4.1cm

3. d= 18.4 ft, r= 18.4/2=9.2ft

4. r= 21.65 yds, d=21.65×2=43.3yds