-4x – 7 – 3x + 4 = 25

X = ??? :)

Answer:

1.10

Step-by-step explanation:

The velocity of the combined cars after the collision is 1.10 m/s.

Velocity is defined as the displacement of the object in a given amount of time and is referred to as velocity.

The momentum of an object is equal to its mass multiplied by its velocity.

The first car has a mass of 1,250 kg and a velocity of 2.24 m/s, its momentum is 1,250 kg x 2.24 m/s = 2,800 kgm/s.

Similarly, since the second car has a mass of 1,300 kg and a velocity of 0 m/s (it is stopped), its momentum is 0 kgm/s.

Therefore, the total momentum of the two cars before the collision is:

⇒ 2,800 kgm/s + 0 kgm/s = 2,800 kg m/s.

After the collision, the two cars stick together and move forward as one unit. We can find the velocity of the combined cars by dividing their total momentum by their total mass.

The total mass of the cars is:

⇒ 1,250 kg + 1,300 kg = 2,550 kg.

So, the velocity of the combined cars after the collision is:

⇒ 2,800 kgm/s / 2,550 kg = 1.098 kgm/s.

To two decimal places, this velocity is 1.10 m/s. Therefore, the correct answer is 1.10 m/s.

To learn more about the collision click here:

https://brainly.com/question/13138178

#SPJ2

Answer:

325

Step-by-step explanation:

h + c = 700

c = 50 + h

50+ h + h= 700

50+2h =700

2h=700-50

2h = 650

h=650/2

h=325

c=325+50

c=375

check 325+375=700

Answer:

520 Pizzas

Step-by-step explanation:

Given

[tex]Duration = 10\ years[/tex]

Required

Determine the total number of Pizzas

Since, the Pizza is bought on a weekly basis

and there are 52 weeks in a year.

Number of Pizzas (P) is calculated as thus:

[tex]P = 52 * Duration * Pizzas[/tex]

[tex]P = 52 *10 * 1\ Pizza[/tex]

[tex]P = 520\ pizzas[/tex]

Answer:

x = 400/(3 c)

Step-by-step explanation:

Solve for x:

(9 c x)/8 + 20 = 170

Hint: | Isolate terms with x to the left-hand side.

Subtract 20 from both sides:

(9 c x)/8 = 150

Hint: | Solve for x.

Divide both sides by (9 c)/8:

Answer: x = 400/(3 c)

Answer:

36 %

Step-by-step explanation:

Convert the fraction to a decimal, then multiply by  100 .

Answer:

36%

Step-by-step explanation:

The same explanation as she said

Answer:

The graph is attached down

Step-by-step explanation:

The form of the linear inequality is y < b + m x, where

To find which graph represents the inequality y < -1 + 2x

→ Find the y-intercept (the value of y at x = 0)

∴ b = -1

∴ The y-intercept is (0, -1)

From the given graphs we have two graphs that the line intersected the y-axis at (0, -1)

2nd graph in the 1st row

2nd graph in the 2nd row

∵ The sign of inequality is <

∴ The shaded area must be under the line

∴ The 2nd graph in the 1st row is our answer

The graph which represents the inequality y < -1 + 2x is attached down

Answer:

3 1/3 mph

Step-by-step explanation

2/3 mile divided by 1/5 hour

To divide by a fraction, MULTIPLY BY THE RECIPROCAL!

This gives 5(2/3) = 10/3 = three & 1/3 mile per hour, or about 3.33 mph.

Answer:

$0.75

Step-by-step explanation:

2.25-1.50=0.75

========================================================

Explanation:

Let's say the teacher pulls the two boys out of the line, and stands in their place. So we have 5 girls and 1 teacher making 6 people total.

There are 6! = 6*5*4*3*2*1 = 720 different permutations here. Order matters. This involves the teacher, so let's have him/her step out of the line and have the two boys replace the teacher's position. This guarantees the boys stick together. For any permutation, we have 2 different ways to arrange the boys. So we have 2*720 = 1440 different ways to arrange the students so that the two boys are next to each other.

This is out of 7! = 7*6*5*4*3*2*1 = 5040 different permutations overall (we're arranging 5 girls+2 boys = 7 people).

The probability we're after is going to be 1440/5040 = 2/7

--------

Or you could see it like this

1440 = 2*6!

5040 = 7! = 7*6!

So,

1440/5040 = (2*6!)/(7*6!)

1440/5040 = 2/7

Answer: (z + 2)(z - 3)

Step-by-step explanation:

First, we have 1 as a coefficient on z², so we multiply that by -6, which gives us -6. Now we must find out what two numbers when multiplied, give us -6, and when added together, give us -1 (z's coefficient). Going through -6's factors, I got -3 and 2 since we need a negative one when they are added together. Now we can input our values:

(z - 3)(z + 2).

Double checking, we get the starting equation, which means our factorization was correct, and so is the solution.

Note: it does not matter which binomial comes first because you will get the same answer regardless of its position.

Answer:

60%

Step-by-step explanation:

It is 60% because, First we have to make 3/5 a percent so we do 5 times 20 which is 100, and 3 times 20 which is 60. So it total it is 60/100 which is 60%

Answer:

[See Below]

Step-by-step explanation:

_________________________________

✦ An easier way of doing this is to change the fraction to an equivalent fraction:

✦ So now it's easier to change to a percentage.

_________________________________

So your answer would be:

_________________________________

~Hope this helps Mate. If you need anything feel free to message me.

[tex]-Your~ Friendly~ Answerer,~ Shane[/tex] ☺

Answer:

c

Step-by-step explanation:

Answer:

C. 24:56

Step-by-step explanation:

3/7 * 8/8

3*8 = 24

7*8 = 56

24/56

Answer:

4.5

Step-by-step explanation:

The reason is you take the .45 × 10 the 4 will be brought to the left due to the ten pushing it. If it was .45 x 100 it would be 45. Apply that with all decimals x 10 , 100 , 1000 or higher

Answer:

negitive 3

Step-by-step explanation:

i think of it like digging. Negitive going down and positive going up aka put dirt down in the whole. so i am down 7 so i add dirt because the 4 is positive. so then i am at 3. wait make that negitive 3. so the answer is negtive 3.

Answer:

-3

Step-by-step explanation:

Answer:

114

Step-by-step explanation:

Because u do 9+10 which equals 19 and then u do 19*6 and u get 114 so the expression now would be 6=114/(9+10)

Answer:

Step-by-step explanation:

Simplifying

3x + 5 = 3x + 7

Reorder the terms:

5 + 3x = 3x + 7

Reorder the terms:

5 + 3x = 7 + 3x

Add '-3x' to each side of the equation.

5 + 3x + -3x = 7 + 3x + -3x

Combine like terms: 3x + -3x = 0

5 + 0 = 7 + 3x + -3x

5 = 7 + 3x + -3x

Combine like terms: 3x + -3x = 0

5 = 7 + 0

5 = 7

Solving

5 = 7

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

Answer:

D!

Step-by-step explanation:

To find the area, we multiply the length times the width to find the number of squares in each box.

A) 1 square down times 7 squares across is 1 x 7, which is 7.

B) 2 squares down times 6 squares across is 2 x 6= 12.

C) 3 squares down times 5 squares across is 3 x 5 = 15.

D) 4 squares down times 4 squares across = 4 x 4 =16.

16 is the biggest number here, so that is the greatest area!

If you enjoyed my answer, please give it a rating and a Thanks! If you think this answer was pretty brainly, please give it a Brainliest!

Have a great day!

Answer: 1.99

Step-by-step explanation: It's about time I tell you how this works. So here it says price PER apple. So PER means we divide 7.96/4 to get 1.99. Now you may be like, How do I know that I do 7.96/4? Why not 4/7.96? Well it says PRICE per APPLE. Price being first so we do 7.96 which is the price, divided by 4 which is the apples. Then we just repeat this process if you want to check your work. So 9.95/5, and 11.94/6

Answer:

5:1

Step-by-step explanation:

Answer:

m=4 or slope =4

Step-by-step explanation:[tex]m=\frac{y2-y1}{x2-x1\\}[/tex]

so [tex]m=\frac{12-4}{6-2}[/tex] which is the same as 8/2. So all in all the slope is 4.

Answer:

12 - 2x = -34

Step-by-step explanation:

Im not entirely sure if this is correct but yeee

High Hopes^^

Barry-

Answer:

I don’t even know man

Step-by-step explanation:

Answer:

It is c which is g(x)

Step-by-step explanation:

Answer:

the answer is C : g(x)

Step-by-step explanation:

i just got the right answer on the assignment

Answer:

About $59.66

Step-by-step explanation:

To find the amount of tax was paid, multiply 64.50 by 0.075 (because 0.075 = 7.5%). This would be 4.8375, which when rounded is 4.84. You subtract 64.50 by 4.84 to get 59.66, but because I rounded, it is about $59.66.

Answer:

60

Step-by-step explanation:

First, change the percentage to a decimal and write the equivalence of the sales tax amount. Let x be the original cost of the item.

Sales tax amount =x⋅0.075

Next, substitute the value into the equation:

Original Cost + Sales Tax Amount = Total Cost

x+0.075x=64.50

Add like terms.

1.075x=64.50

Divide both sides by 1.075 to isolate the unknown value.

x=$60

Answer:

(8y+8)²+(4x²+16)=0

Step-by-step explanation:

Given:

(64y²)+(4x²)+128y+16x+64=0

Find:

Equation into the appropriate form

Computation:

(64y²)+(4x²)+128y+16x+64=0

(8y)²+(2x)²+128y+16x+64=0

(8y)²+(2x)²+2(8y)(8)+2(2x)(4) + 8²=0

(8y+8)²+(4x²+16)=0

Step-by-step explanation:

50 miles per hour, how long will it take before that train meets THE Other train, going from B to A, at a speed

Answer:

112

Step-by-step explanation:

56*2 and then you just find a multiple that is really close to 112 and i am in 5th grade.

Answer:

Option C.  

Step-by-step explanation:

( 16 + 40 ) =

8 x 2 = 16

8 x 5 = 40

8 x ( 2 + 5 )