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3 years ago

Need answer to 13+p/3=-4

Mathematics

2 answers:

trasher [3.6K]3 years ago

8 0

Answer:

Step-by-step explanation:

13+p/3=-4

P/3=-4-13

p=3(-4-13)

p=-13-39

p=-52

chubhunter [2.5K]3 years ago

7 0

Answer:

p = -25

Step-by-step explanation:

Work backwards.

-4 x 3 = -12

-12 + 25 = 13

13 + -25 = -12

-12 / 3 = -4

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3 years ago

A store offers discounts on lunch-size chip bags when buying larger quantities. The graph below represents the total cos

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<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more variables and numbers.

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3 years ago

PLEASE HELP

laila [671]

<h3><u>Option A</u></h3>

$4 x^{2}+32 x-80=0$ is the required equation to calculate width of rectangular frame that has a total area of 140 square inches.

<h3><u>Solution:</u></h3>

Given that,

Length of a rectangular frame is given as 2x + 10

Width of the rectangular frame is given as 2x + 6

Total area = 140 square inches

<em><u>The area of rectangular frame is given as:</u></em>

$\text {area of rectangle}=\text {length } \times \text {width}$

Plugging in values, we get

$\begin{array}{l}{(2 x+10)(2 x+6)=140} \\\\ {4 x^{2}+12 x+20 x=80} \\\\ {4 x^{2}+32 x-80=0}\end{array}$

This is the required equation to calculate width of rectangular frame

Solve the above quadratic equation to get the value of "x"

$4 x^{2}+32 x-80=0$

<em><u>Use the quadratic equation formula:</u></em>

$x=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}$

Here a = 4 ; b = 32 ; c = -80

$x=\frac{-32 \pm \sqrt{32^{2}-4(4)(-80)}}{2(4)}$

$x=\frac{-32 \pm \sqrt{2304}}{8}$

x = 2 or x = -10

Now measurement cannot be negative, so taking the positve value of "x", we can calculate the width

So put "x" = 2

Width of the rectangular frame = 2x + 6 = 2(2) + 6 = 10

Thus the width of frame is 10 inches

4 0

3 years ago

Need answer to 13+p/3=-4​

Need answer to 13+p/3=-4