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4 years ago

4x(12+14)= ? +(4x14)

2 answers:

6 0

Since 4x(12+14) is 104, and just 4x14 is 56, you would do 104-56 and it would be 48. If you do 48+(4x14) you still get the same answer as the other equation.

Rina8888 [55]4 years ago

3 0

Let the missing number (?) be 'a'
4x(12+14)= a +(4x14)=>48+ 56 =a +56
=>104 = a+56
=>104=a+56
=>a =104-56
=>a=48 ..

so it is ...4 X (12 +14)=48 +(4 X 14) ..

Hope it helps !!!

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A family has two cars. The first car has a fuel efficiency of 25 miles per gallon of gas and the second has a fuel efficiency of

Oxana [17]

first car is x

second car is y

25x+30y=1550

x+y=55

Multiply the second equation by -25 for elimination method to cancel out x

-25x-25y=-1375

Add the two equations

5y=175

y=35

Plug this value into the second equation

x+35=55

x=20

Final answers:

First car=20 gallons

Second car=35 gallons

8 0

3 years ago

the train to hogwarts is moving at a speed of 120 mph. if hogwarts is 420 miles away, how long will the students train ride be ?

dexar [7]

Answer:

The train ride is 3.5 hours

Step-by-step explanation:

We know that distance is equal to rate times time

d = rt

We know the distance and the rate

420 = 120*t

Divide each side by 120

420/120 = 120t/120

3.5 =t

The train ride is 3.5 hours

4 0

3 years ago

Read 2 more answers

Write a polynomial that represents the area of the shaded region.

Arada [10]

Answer:

10x-22

Step-by-step explanation:

((x+2)(x-1))-((x-4)(x-5))

(x^2-x-2)-(x^2-9x+20)

x^2 + x - 2

+ (-x^2+9x-20)

_______________

10x-22

6 0

3 years ago

What is the value of 36X negative Y over to when X equals three and Y equals -6

Rus_ich [418]

Note:

Your question is a little unclear. But, from my understanding, I assume you may be asking the evaluation of the expression 36x - y when x = 3 and y = -6.

so I will solve based on my assumption which anyways would clear your concept.

Answer:

The value of 36x - y when x = 3 and y = -6 will be: 114

Step-by-step explanation:

Given

Assuming the expression

36x - y

To Determine

Evaluate 36x - y when x = 3 and y = -6

Given the expression

$36x - y$