The second of 2 numbers is 5 more than twice the first. Their sum is 29. Find the numbers

Answers

Answer 1

Answer: Call the numbers x and y. Let y be the larger number.
The second of 2 numbers is 5 more than twice the first is y = 2x+5
Their sum is 29 is x+y=29.
Substitute 2x+5 for y in the second equation.x+2x+5=29
3x=24
x=8
y = 2(8) + 5 = 21
Hope the solution helped.
Briemode!:)

Answer 2

Answer: so call the numbers x and z
first number=x
second number=z
second of 2 numbers (z) is = 5 more than (5+) twice the first (2x)
z=5+2x
their sum is 29
x+z=29
subsisute 5+2x for z in equation
x+5+2x=29
3x+5=29
subtract 5
3x=24
divide bboth sides by 3
x=8
subsitute 8 for x
z=5+2(8)
z=5+16
z=21

numbers are 8 and 21

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One third of a number t is equal to 7

Answers

Set up the following equation;
(1/3)t=7
Multiply 3 by each side to get rid of 1/3;
t=21
Hope this helps.

Solve the equation using inverse operations. Show your work. 5+ x^2= 2x^2 +13

Answers

In this equation firstly you have got two like terms those are 5 and 13 both have got the positive sign with them that simply means to add them up then you've got other like terms those are x^2 and 2x^2 add them up again that would be 3x^4
so the ans is 18+3x^4

Three times a number increased by 7 gives the same result as four times the number increased by 5? Heeellllpppp

Answers

If we were to write this as a mathematical equation, it would look something like this:

3x + 7 = 4x + 5

In order to solve, we would need to isolate the variable. We can do this by subtracting 3x from both sides, after doing which, we are left with this:

7 = x + 5

Then, we subract 5 from both sides to isolate the variable

2 = x

That number you are looking for is 2.

Let's check out work by substituting 2 in for the unknown number in the original problem:

3(2) + 7 = 4(2) + 5

6 + 7 = 8 + 5

13 = 13

And we can see that the numbers do indeed check out.

Your answer is 2.
Hope that helped! =)

Philip is going on a 4000-kilometer road trip with three friends. The car consumes 6 liters of gas per 100 kilometers, and gas costs $1.50 per liter.If Philip and his friends want to split the cost of gas evenly, how much should they each pay?

Answers

Each person should pay an amount of $90 towards the cost of gas for the road trip.

What are Arithmetic operations?

Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions.

First, you need to calculate the total amount of gas that the car will consume on the road trip. To do this, divide the total distance of the trip by 100 kilometers per liter to get the number of liters of gas that the car will consume:

4000 km / 100 km/ 6 liter = = 40 x 6 = 240 liters.

Then, multiply the number of liters of gas by the cost per liter to find the total cost of gas for the trip:

240 liters x $1.50/liter = $360

Finally, divide the total cost of gas by the number of people in the car to find how much each person should pay:

$360 / 4 people = $90/person.

Therefore, each person should pay 90 dollars.

Learn more about Arithmetic operations here:

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Each person should pay $90.4000km x 6L/100km = 240L x $1.50 = $360/3 = $120 per person

First you must determine how many liters of gas will be required for this 4000 kilometer trip:

4000km x 6liters/100km = 40 x 6 = 240 liters.

Each liter costs $1.50, so now find the total cost of the gas:

240liters x $.150/liter = $360

This cost is being shared by 3 people, so:

$360 ÷ 4 = $90

Answer is $90

i hope this helps!

Ali says if two lines share a point they cannot be parallel do you agree explain

Answers

Yes, parallel lines do not touch each other ever.

How are parallel straight lines related?

Parallellines have the same slope since the slope is like a measure of steepness and since parallel lines are of the same steepness, thus, are of the same slope.

Since the given parallel line has equation y = 2x + 2, thus its slope is 2 and thus, the slope of the needed line is 2 too.

We are given that Ali says if two lines share a point they cannot be parallel .

Horizontal refers to something that goes parallel to ground level. Of course it depends on from where you see that thing.

When you slice an object horizontally, you cut it parallel to ground.

We know that parallel linesdo not touch each other ever.

so that's make ali statement correct.

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Yes, parallel lines do not touch ever, that's what makes them parallel.

Which of the following mapping diagrams does not represent a function?

Answers

Well, from the picture, we can say that 'A' isn't. We don't know about any of the others because we can't see them.

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