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3 years ago

This is due soon... My math grade is bad and this is the last question please help! I'll give brainlist

Mathematics

1 answer:

klasskru [66]3 years ago

5 0

Answer:

12 + 2w > 40

w > 19

Minimum value of w is 20 feet.

Step-by-step explanation:

Consider the provided information.

Sharon has at most $25 to spend on her sister's birthday gift.

That means Sharon can spend not more than $25.

She already bought a knitting machine for her, which cost $14.99.

She would also like to get her sister some skeins of yarn to go with it. Each skein costs $2.75.

Let y represent the number of skeins of yarn.

Thus, the required inequality is:

Now solve the above inequality.

Skeins must be an integer.

Hence, the most number of skeins Sharon can afford to buy is 3.

ona wants to bake at most 30 loves of banana bread and nut bread for a bake sale. Each loaf of banana bread sells for $2.50 , And each loaf of nut bread sells for $2.75. Cora wants to make at least $44. Write a system of inequalities to model the situation

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Cedric and Insha solved the same equation using the calculations below.

Mariulka [41]

The first working out is correct, z = 3

3 0

3 years ago

Which value is NOT a solution of 8x3 – 1 = 0?

Tpy6a [65]

Note: As you may have unintentionally missed to add the value choices. But, I would make sure to explain the concept so that you may improve your understanding in terms of solving these type of questions.

Answer:

Any value other than the values $x=\frac{1}{2},\:x=-\frac{1}{4}+i\frac{\sqrt{3}}{4},\:x=-\frac{1}{4}-i\frac{\sqrt{3}}{4}$ will not be a solution of $8x^3\:-\:1\:=\:0$ .

Step-by-step explanation:

Considering the equation

$8x^3\:-\:1\:=\:0$

Steps to solve the equation

$8x^3-1=0$

$\mathrm{Add\:}1\mathrm{\:to\:both\:sides}$

$8x^3-1+1=0+1$

$\mathrm{Simplify}$

$x^3=\frac{1}{8}$

$\mathrm{Divide\:both\:sides\:by\:}8$

$\frac{8x^3}{8}=\frac{1}{8}$

$\mathrm{Simplify}$

$x^3=\frac{1}{8}$

$\mathrm{For\:}x^3=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=\sqrt[3]{f\left(a\right)},\:\sqrt[3]{f\left(a\right)}\frac{-1-\sqrt{3}i}{2},\:\sqrt[3]{f\left(a\right)}\frac{-1+\sqrt{3}i}{2}$

$x=\sqrt[3]{\frac{1}{8}},\:x=\sqrt[3]{\frac{1}{8}}\frac{-1+\sqrt{3}i}{2},\:x=\sqrt[3]{\frac{1}{8}}\frac{-1-\sqrt{3}i}{2}$

So,

$x=\frac{1}{2},\:x=-\frac{1}{4}+i\frac{\sqrt{3}}{4},\:x=-\frac{1}{4}-i\frac{\sqrt{3}}{4}$

Therefore,

Any value other than the values $x=\frac{1}{2},\:x=-\frac{1}{4}+i\frac{\sqrt{3}}{4},\:x=-\frac{1}{4}-i\frac{\sqrt{3}}{4}$ will not be a solution of $8x^3\:-\:1\:=\:0$ .

Keywords: solution, value

Learn more about equation solution from brainly.com/question/1679491

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7 0

3 years ago

180 red marbles to 145 blue marbles ratio

Ket [755]

Answer:

36 : 29

Step-by-step explanation:

Require to simplify the ratio

180 : 145

Divide both parts by 5

= 36 : 29 ← in simplest form

Simplest form means that no other number but 1 will divide into the 2 parts of the ratio.

6 0

3 years ago

True or false. this set of three numbers are measurements of a right triangle 26, 24, 10

Firdavs [7]

True

using the converse of Pythagoras' identity

Given 3 sides of a triangle, if the longest side squared is equal to the sum of the squares of the other 2 sides then triangle is right.

longest side squared = 26² = 676

sum of other 2 sides squared = 24² + 10² = 576 + 100 = 676

Hence triangle is right

5 0

3 years ago

Geometry...halp QwQ......

nignag [31]

I am pretty sure that it is C.

7 0

3 years ago