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3 years ago

In an arithmetic sequence a17=-40 and a28=-73 write the first 5 terms

Mathematics

1 answer:

Alla [95]3 years ago

5 0

Answer:

First 5 terms: 8, 5, 2, -1, -4

Step-by-step explanation:

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Three brothers Charlie Robert and Nicholas have 21 video games Charlie has twice as many games as Robert. Robert has 5 fewer gam

AVprozaik [17]

Answer:

The equation would be $4x-15=21$ .

Step-by-step explanation:

Given;

Total Number of Video games = 21

Let the number of video game Nicholas has be 'x'.

Now Given:

Robert has 5 fewer games than Nicholas.

so we can say that;

number of video game Robert has = $x-5$

Also Given:

Charlie has twice as many games as Robert.

so we can say that;

number of video game Charlie has = $2(x-5)=2x-10$

we need to write the equation.

Solution:

Now we can say that;

Total Number of Video games is equal to sum of number of video game Nicholas has, number of video game Robert has and number of video game Charlie has.

framing the equation we get;

$x+x-5+2x-10=21\\\\4x-15=21$

Hence The equation would be $4x-15=21$ .

On Solving we get;

Adding both side by 15 we get;

$4x-15+15=21+15\\\\4x=36$

Dividing both side by 4 we get;

$\frac{3x}{4}=\frac{36}{4}\\\\x=9$

Hence Nicholas has = 9 video games

Robert has = $x-5= 9-5=4$ video games

Charlie has = $2x-10 = 2\times9-10=18-10=8$ video games

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3 years ago

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Use the angle relationship in the figure below to solve for x. Assume that lines a and b are parallel and the given angles are g

Daniel [21]

9514 1404 393

Answer:

x = 5°

Step-by-step explanation:

The marked angles are "alternate exterior angles," hence congruent.

2x +90° = x +95°

x = 5° . . . . . . . . . . . . subtract (x+90°) from both sides

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2 years ago

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (–

madam [21]

The first step of simplifying the expression would be summing up the "i"s. They are separate ("+i" and "+5i") but you can still sum them up though they are apart. This is thanks to the commutative property of addition which allows summing the terms of an expression with several additions in whatever order it is prefered. Commutative means that the terms can be interchangeable.

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3 years ago

What is the value for y

Klio2033 [76]

Hey there,

I believe but I'm not quite sure, I believe that the correct answer would be 42 because by subtracting 79-37, that should give you y.

Hope this helps. (forgive any errors.)

~Jurgen

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3 years ago

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What is five million four thousand three hundred in standard form

Lostsunrise [7]

In number form, 5,004,300

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2 years ago