Simplify 2x + 1 -x + 2.

Answer:

Fred = 31

Natalie = 15

Step-by-step explanation:

We have Natalie and Fred's whos age are unknown, we know that when added, their ages equal 46. While when multiplied with Natalie's age 4 times, their ages is 91.

Create two systems :

F = Fred

N = Natalie

F + N = 46

4N + F = 91

We can change the first equation to Natalie's age alone :

N = 46 - F

Now substitute this into the second equation :

4(46 - F) + F = 91

Distribute :

184 - 4F + F = 91

Subtract 184 from both sides :

-4F + F = -93

Add like terms :

-3F = -93

Divide -3 from both sides :

F = 31

Therefore, Fred is 31 years old. Now replace his age in the first equation :

31 + N = 46

46 - 31

15

Therefore, Natalie is 15 years old.

Answer:

106 degrees

Step-by-step explanation:

Answer:

106

Step-by-step explanation:

Answer:

C. mass

Step-by-step explanation:

gravity is different on the moon

and weight is different because of that change in gravity

If the bowling ball is placed on the moon, the feature which will stays same,  mass of the ball. So option C is correct

The definition of force is the pushing or pulling of anything. Push and pull are the result of two things interacting with one another. Stretch and crush are two more phrases that can be used to describe force.

Given that,

A bowling ball is placed on the moon

So, when ball is placed on moon, it affects the following factors,

Force from gravity - On the Earth and on the Moon the gravitational force will be different.

Weight - On the Earth and On the Moon the gravitational acceleration will be different so weight will be different on both the planets.

Mass- It is the property of the object and it is independent from the planets, it will be same on every planet.

Hence, the  Mass is same on both the planets

To know more about Force check:

https://brainly.com/question/13191643

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Answer:

   here we have rolled two dice. So total no. of possible outcomes will be 6^2=36. These are (1,1),(1,2),(1,3),(1,4),(1,5),(1,6),(2,1),(2,2),(2,3),(2,4),(2,5),(2,6),(3,1),(3,2),(3,3),(3,4),(3,5),(3,6),(4,1),(4,2),(4,3),(4,4),(4,5),(4,6),(5,1),(5,2),(5,3),(5,4),(5,5),(5,6),(6,1),(6,2),(6,3),(6,4),(6,5),(6,6).

   Now, among these cases the cases where the sum is seven for (1,6), (2,5), (3,4), (4,3), (5,2), (6,1) i.e. there are 6 cases.

   Now, it is time to calculate the probability.

   The required probability is,

   p = (No. of cases favorable for the event)/(Total no. of cases)

   =6/36 =

Step-by-step explanation:

Two fair six-sided dice are rolled. What is the probability that the sum of the two dice is seven?

Answer:

Using distributive property is the next step in solving the equation

Step-by-step explanation:

-2(4x-1)-7=5

-8x+2-7=5

Answer:

The next step would be to do distributive property.

Step-by-step explanation:

-2(4x-1)-7=5

-8x + 2 - 7 = 5

-8x - 5 = 5

     +5    +5

-8x = 10

/-8     /-8

x= -5/4

 or

x = -1 1/4

Hope this helps and I hope u have an Amazing day!!

Answer:

37

Step-by-step explanation:

74*(-5+5+1/2)

74*(1/2)

37

Answer:

i^0 = 1

i^1 = i

i^2 = -1

i^3 = -i

i^4 = 1

i^5 = i

i^6 = -1

i^7 = -i

i^8 = 1

i^9 = i

Step-by-step explanation:

Anything raised to 0 is 1

Anything raised to 1 is itself

I just always knew i^2 = -1

I put this rest into the calculator honestly

But if you look at the stuff from i^2, you'll notice there's a pattern (-1, -i, 1, i) and it repeats. I bet if you raise i to the 10th, 11th, 12th, and 13th power, it is going to repeat the same pattern. I hope this helps in any way.

Answer:

(4,-2) is the answer to that equation.

Answer:

(-4,0)

Step-by-step explanation:

solve for the first variable in one of the equations,then substitute the result into the other equation

Answer:

She missed 6 questions.

Step-by-step explanation:

88% can be written as (88/100) or as 0.88.

You can set this as a ratio problem which is,  

88/100 = correct/50

correct = (88/100)*50       (multiply both sides by 50)

correct = 44

So, 50 (total questions) - 44 = 6 incorrect questions

Answer:

1 and 8 alternate exterior angles

4 and 5 - alternate interior angles

6 and 7 - vertical angles

4 and 8 - corresponding angles

3 and 5 - consecutive interior angles

1 and 2 - linear pair

Step-by-step explanation:

Answer:

1 and 5

2 and 6

3 and 7

4 and 8

Answer:

Multiply 3

Step-by-step explanation:

Answer:

incorrect

Step-by-step explanation:

this is incorrect because i solved it and i didn't got that answer

hope this helps:)

Pls mark brainlist

Answer:

Explanation:

-2j - 10 = -6

−2j − 10 + 10 = −6 + 10

−2j = 4

-2j / -2 = 4 / -2

Answer:

137.5 cm²

Step-by-step explanation:

Triangle + parallelogram = (11*7) /2 + (11*9) = 38.5 + 99 = 137.5

I’m am answering this question so that the other person can get a brainliest

Answer:

z-7 is correct

Answer:

x = 8

y = 29

Step-by-step explanation:

8x - 11 = 9x - 19

x - 19 = -11

x = 8

2y - 5 = 9x - 19

2y - 5 = 9(8) - 19

2y - 5 = 72 -19

2y - 5 = 53

2y = 58

y = 29

Answer:

I dont know but maybe later

Answer:

ok have a nice time

Step-by-step explanation:

Answer:

I totally agree *brainly don't take down my answer pls*

Step-by-step explanation:

Answer:

X=37

Step-by-step explanation:

Add 4x+2 and 30 it equals to 180. Then you get x.

Answer:

i think it would  be 2 inches

Step-by-step explanation:

Answer:

True, True, False, True, False for part 1

Step-by-step explanation:

Make me brainliest

Answer:true,true,false,true part one

Step-by-step explanation:

Answer:

Step-by-step explanation:

57.8 - 32.95 = 24.85

24.85 inches

Don't forget units! :)

Answer:

24.85in

Step-by-step explanation:

This is a very simple subtraction:

57.80-32.95=24.85in

i hope this helps

pls give thx and brainliest

Answer:

2nd water freezes at 0 C and 32 F and boils at 100 C and 212 F

Step-by-step explanation:

Given:

The expression is

[tex]4y^2+y-45[/tex]

To find:

The value of the given expression when y=-5.

Solution:

We have,

[tex]4y^2+y-45[/tex]

Putting y=-5, we get

[tex]4(-5)^2+(-5)-45[/tex]

[tex]=4(25)-5-45[/tex]

[tex]=100-50[/tex]

[tex]=50[/tex]

Therefore, the value of the given expression is 50 when y=-5.

Answer:

y = x + 1

Step-by-step explanation:

The line y = x  goes through the origin, and forms a perfect 45 degree angle with the x axis.

This is that same line, moved upward 1 unit, so the y value comes out 1 unit more.

Also, in y = mx + b form (slope-intercept form), we see slope m = 1 and y-intercept b = 1, so

y = 1x + 1 = x + 1

y = x + 1

Answer:

12.0 cm

Step-by-step explanation:

✔️First, find the height, BC, of the trapezium using Pythagorean Theorem.

BC² = 10² - (9 -3)²

BC² = 10² - 6²

BC² = 64

BC = √64

BC = 8 cm

✔️Find AC using Pythagorean Theorem:

AC² = AB² + BC²

AC² = 9² + 8²

AC² = 145

AC = √145

AC = 12.0415946 ≈ 12.0 (3 significant figures)

Answer:

1107 feets below sea level

Step-by-step explanation:

Given that :

Initial elevation of submarine = 984.6 feets below sea level

Depth of dive from initial elevation = 122.4 feets below sea level

The elevation after the dive :

Initial elevation + depth of dive

984.6 + 122.4

= 1107 feets below sea level