Which expression means "the difference between two times six and five?"
A 2×6−5
B 2×(6−5)
C 2×6−2×5
D 2−6−5

Answer:

270 seconds

Step-by-step explanation:

Melissa's time = x seconds

Abby's time = (x + 30) seconds

Abby walks at a speed of 8 feet per second, and Melissa walks at a speed of 9 feet per seconds.

But, speed = [tex]\frac{distance}{time taken}[/tex]

For Abby,

8 = [tex]\frac{distance}{(x + 30)}[/tex]

distance = 8(x + 30) ................. 1

for Melissa,

9 = [tex]\frac{distance}{x}[/tex]

distance = 9x ............. 2

From equations 1 and 2, for the same distance;

8(x + 30) = 9x

8x + 240 = 9x

x = 240 seconds

Abby's time = (x + 30)

                    = (240 + 30)

                    = 270 seconds

So that Abby has been walking for 270 seconds when both students had walked exactly the same distance.

The time taken is 270 seconds.

Given that,

Based on the above information, the calculation is as follows:

8(x + 30) = 9x

8x + 240 = 9x

x = 240

So Abby time should be

= 240 +  30

= 270

Learn more: brainly.com/question/17429689

Answer:

C

Step-by-step explanation:

Answer:

its   a hehehehehehhehehe\

Step-by-step explanation:

Answer:

$50

Step-by-step explanation:

1. First you need to divide 70 by 7.

2. Your answer should be 10.

3. You then need to multiply the product, 10 by 5.

4. You answer should be 50 and because we are using this in a money situation the answer is $50.

Answer:

50

Step-by-step explanation:

Answer:

164

Step-by-step explanation:

443-279

=164

Answer:

443 - 279 = 164

Step-by-step explanation:

so train A should be 279 pounds

and train B should be 164 pounds

So sorry i might be wrong i tried my best

Answer:

C

Step-by-step explanation:

Answer:

She has 256 stickers.

Step-by-step explanation:

4 times 64 equals 256

Answer:

I did this question just the other day. The answer you are looking for is B or the second one.

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

yes

Answer:

x = - 6    

Step-by-step explanation:

Equation

1/3 * (-9x +12) = 22                Multiply both sides by 3

Solution

3 * 1/3(-9x + 12) = 22*3

- 9x + 12 = 66                        Subtract 12 from both sides.

-9x = 66 - 12                         Combine

-9x = 54                                Divide by -9

x = 54/-9

x = - 6

Answer:

Step-by-step explanation:

Answer:

818.265

Step-by-step explanation:

Answer:

5w+15v-30

Step-by-step explanation:

Answer:

1300y^2+1400y+343

Step-by-step explanation:

Use FOIL to cancel out the products

Answer:

84

Step-by-step explanation:

To complete the concrete highway with pavers 84 pavers are needed.

We know the perimeter of any 2D figure is the sum of the lengths of all the sides except the circle and the area of a rectangle is the product of its length and width.

From the given information each Pavel has an area of 4.5 square feet.

And the area of the driveway can be obtained by multiplying the length and width of the driveway which is,

= (21×18) sq feet.

= 378 sq feet.

Therefore, The number of pavers needed is,

= (378/4.5).

= 84 pavers.

learn more about rectangles here :

https://brainly.com/question/29123947

#SPJ3

Answer:

Step-by-step explanation:

(x+9)² + (y-6)² = 9²

Answer:

the

Step-by-step explanation:

Answer:

80

Step-by-step explanation:

25%X4=100%

20X4=80

Answer:

3 whole pizzas left

Step by step explanation:

well if the quest take 2 out of every 5 wholes then u would be left with 3

                                    5                     5                                                          5

so u add then together and get [tex]3\\ 5[/tex] and add that 5 times

so u would get [tex]15\\ 5[/tex] and if u simplify u would have 3 whole pizzas left

:)

Answer:im lonely

Step-by-step explanation:

Answer:

9:45 am

Step-by-step explanation:

Hope this helps!

Answer:

10:15

Step-by-step explanation:

Answer:

m = 3+y/y-4

Step-by-step explanation:

Answer:

12-8+3 for the numerical and 2x=3y-6 for the algebraic expression

Step-by-step explanation

Numerical expression consists of numbers and one operation

Algebraic expression consist of multiple varaibles  and constents

Answer:

algebraic expression: 6p +18

Answer:

You can figure out prime numbers by simply knowing that you can divide that number not more than one. For example, you could know that a prime number is 7 because you can only divide it once like 7 divided by 1. While for number 14, you can divide it twice which isn't a prime number because there is 14 divided by 2 and 14 divided by 1 which is more than one to divide. That's possibly an easy way to understand how to figure them out.

Answer:

(b) 217 cm

Step-by-step explanation:

The computation of the number of centimeters will each have is shown below:

= Length of the string ÷ number of pieces

= 10.85 meters ÷ 5

= 2.17 meters

= 217 centimeters

hence, the correct option is b.

Answer:

length =25m

breadth =16m

area of rectangle =25*16

according to question

area of rectangle =Area of Square

Area of squre =400m

Side *Side =400m

(Side)=(20m)

Side =20m

Answer:

(half of base)² + (height)² = (20)²

Step-by-step explanation:

In an isosceles triangle, the angle bisector from the 3rd angle to the opposite side is a perpendicular bisector, so you split the isosceles triangle into two congruent right triangles.

This technique of 'splitting the isosceles' is used a LOT.

Answer:

76

Step-by-step explanation:

khan x math

Answer:

0.063

is the correct answer

Answer:

0.063

Step-by-step explanation: