R=11+8r=29 Please Helpppp me

Answers

Answer 1

Answer:

What method are you using to solve this problem? Simplify, solve ? I need to know so I can help you out.

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2x+4y=12 y=0.25x-3 What is the solution to the system of equations?(–1, 8)
(8, –1)
(5,1/2) 0r (1/2,5)

Answers

{ 2 x + 4 y = 12
y = 0.25 x -3

Arrange equation variables of elimination :

{ 2 x + 4 y = 12
-0.25 x + y = - 3

Multiply ( -0.25 x +y = - 3 ) by 8 :

8y - 2 x = - 24

{ 2 x + 4y = 12
-2x + 8y = -24
----------------------
12 y = -12

y = - 12 / 12

y = - 1

For x :

2 x + 4y = 12

2 x + 4 ( - 1 ) = 12

2 x - 4 = 12

2 x = 12 + 4

2 x = 16

x = 16 / 2

x = 8

x = 8 and y = - 1 => ( 8 , - 1 )

Answer b

hope this helps!

Estimate the sum by rounding each number to the nearest half or whole.

2 1/2+ 5 5/8

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I believe the answer should be 9.

What's the answer to this?

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I'm pretty sure the answer is 40

I need help with this question

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With all due respect, I'm guessing that you're fine with the question,
but you could use some help on the answer. Am I right ?

-- The answer has something to do with the total amount the coach spent,
so we'll need to know that amount. Let's find it now:

(9 chickens) x ($5 each) = $45 for chicken
(15 burgers) x ($6 each) = $90 for burgers

Total amount he spent: ($45 + $90) = $135 all together ( nice coach ! )

What part of it was used for the chickens ?
Remember, he spent $45 for chickens.

$45 / $135 = 1/3 = 0.33333.... = ( 33 and 1/3 ) percent

Now I'm wondering ... it doesn't say anywhere in the problem ...
do you think he gave any of that food to the team ?

Solve photo question, please. :)

Answers

You wouldnt get any solutions as if you substituted them into each other you would get:
-3x - 6 = -3x + 7
the -3x cancel eachother out so you end up with
-6 = 7 which isnt true

A set of equations is given below:Equation E: a = 5b + 1
Equation F: a = 3b + 4

Which statement describes a step that can be used to find the solution to the set of equations?

Equation F can be written as 5b + 1 = 3b + 4.
Equation F can be written as b + 1 = 3b + 4.
Equation F can be written as a = 3(a − 1) + 4.
Equation F can be written as a = 5(a − 4) + 1.