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sergeinik [125]
3 years ago
11

The perimeter of a rectangle with width

Mathematics
1 answer:
Usimov [2.4K]3 years ago
8 0

Answer:

y = 20 - x

Step-by-step explanation:

Perimeter of a rectangle = 40 units

2 * ( length + width) = 40

  2* (x + y) = 40    {Divide both sides by 2}}

     x + y = 40/2

     x + y = 20       {Subtract x from both sides}

            y = 20 - x

         

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Jonny has $50 in a savings account. Each week, he deposits $13 in the account. Jonny's brother has $90 in a saving account. Each
valina [46]

Answer:

140 + 96 m

Step-by-step explanation:

There are 4 weeks in 1 month.

Therefore:

Jonny has $50 in a savings account. Each week, he deposits $13 in the account.

$50 + $13 × 4m

The algebraic expression is given as:

50 + 52m

Jonny's brother has $90 in a saving account.

Each week, he deposits $11 in the account.

The algebraic expression is given as:

$90 + $11 × 4m

90 + 44m

An algebraic expression to describe how much money Jonny and his brother will have in their accounts after m months is written as:

Amount Jonny has + Amount his brother has

50 + 52m + 90 + 44m

= 50 + 90 + 52m + 44m

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7 0
3 years ago
What is this answer to this
Leviafan [203]
Your answer would be 14 and 2/3
4 0
3 years ago
Read 2 more answers
Use the general solution to solve 5 – 6x = 8x + 17.
Jlenok [28]
<span> 5 – 6x = 8x + 17 
</span>⇔ 5 - 17 = 8x + 6x
⇔ -12 = 14x
⇔ x = -6/7 
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3 years ago
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I WILL AWARD BRAINLIEST!! PLEASE HELP!!
dimulka [17.4K]

Answer:

the absolute value inequality in the form |x-b|c that has the solution set x≤−9 or x≥−5. lol jk

Step-by-step explanation:

|x−b|=c

Since we need three conditions that need to be met, we will opt for presenting three different expressions as a solution.

Case 1

One solution: x=−9

One expression that satisfies this condition is

(c = 0, b = -9 )

|x + 9|=0

|-9 + 9|=0

Case 2

All numbers such that x≤5

The solutions that satisfy this case can be found in the attached picture below, (they were obtained with a mathematical solver.)

Case 3

All numbers such that x≤-14

i pretty sure this is it.

6 0
3 years ago
The vertex of this parabola is at (1, 3). Which of the following could be its equation?
White raven [17]
For
y=a(x-h)^2+k
vertex is (h,k)

it could be
y=a(x+1)^2-3
8 0
3 years ago
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