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2 years ago

50 points! help me! Real answers PLEASE!

Mathematics

2 answers:

Zepler [3.9K]2 years ago

5 0

Answer:

Step-by-step explanation:

cant answer something that doesn't exist

Alika [10]2 years ago

4 0

Step-by-step explanation:

Your previous questions answer is

v=23

w=19

x=22

y=26

z=20

<em>if</em><em> </em><em>you</em><em> </em><em>satisfied</em><em> </em><em>in my answers please please mark</em><em> </em><em>as brainleiest and follow me</em><em> </em>

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A positive real number is 2 less than another. When 4 times the larger is added to the square of the smaller, the result is 49.

Kobotan [32]

Answer:

The numbers are

$-2+3\sqrt{5}$ and $3\sqrt{5}$

Step-by-step explanation:

Let

x -----> the smaller positive real number

y -----> the larger positive real number

we know that

A positive real number is 2 less than another

$x=y-2$

$y=x+2$ ----> equation A

When 4 times the larger is added to the square of the smaller, the result is 49

$4y+x^2=49$ ----> equation B

substitute equation A in equation B

$4(x+2)+x^2=49$

solve for x

$x^2+4x-41=0$

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

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

in this problem we have

$x^2+4x-41=0$

$a=1\\b=4\\c=-41$

substitute in the formula

$x=\frac{-4\pm\sqrt{4^{2}-4(1)(-41)}} {2(1)}$

$x=\frac{-4\pm\sqrt{180}} {2}$

$x=\frac{-4\pm6\sqrt{5}} {2}$

$x=-2\pm3\sqrt{5}$

The positive real number is

$x=-2+3\sqrt{5}$

Find the value of y

$y=x+2$

$y=-2+3\sqrt{5}+2$

$y=3\sqrt{5}$

6 0

3 years ago

Translate to an equation and sole: The quotient of h and 26 is -52

rusak2 [61]

<h2>Answer:</h2><h2>h/26=-52</h2><h2> *26=*26</h2><h2>h=-1352</h2><h2>Hence, h equals -1352 when solved in a equation.</h2><h2>Hope this helps!!! PLZ MARK BRAINLIEST!!!</h2>

7 0

2 years ago

2. Diamond has $350 in her bank account. She

lorasvet [3.4K]

Answer:

$173.70 will be the balance

Step-by-step explanation:

350 - (4*18.45) - (2*51.25)

350 - 73.80 - 102.50= 173.70

7 0

2 years ago

10.5125 rounded to the nearest cent plz help me ty <3

Phoenix [80]

Answer: your answer should be 10.5130

Step-by-step explanation:

5 0

2 years ago

james' daily wage was $5 more than Davis's. Although James worked 3 days less than David, they earned $180 each. Find the number

zalisa [80]

Answer: 9 days

Step-by-step explanation:

Let x represent James' daily wage

James' daily wage was $5 more than Davis's. It means that Davis's daily wage will be $(x-5)

Let y represent number of days that James worked. James worked 3 days less than David. It means that the number of days that Davis worked would be (y + 3) days

they earned $180 each. Total amount of money earned by either of of them is the product of wage and the number of days worked.

Since James earned $180, then

180 = xy - - - - - - - - 1

Since Davis also earned $180, then

180 = (x - 5)(y + 3)

xy +3x -5y -15 = 180 - - - - - - - - 2

Substituting xy = 180 into equation 2

It becomes

180 + 3x - 5y -15 = 180

3x - 5y = 180 - 180 + 15

3x - 5y = 15 - - - - - - -3

From equation 1, x = 180/y

Substituting x = 180/y into equation 3, it becomes

3 × 180/y - 5y = 15

540 - 5y^2 = 15y

5y^2 + 15y -540 = 0

Dividing through by 5

y^2 + 3y -108 = 0

y^2 + 12y - 9y -108 = 0

y(y + 12) - 9(y + 12) = 0

y + 12 = 0 or y - 9 = 0

y = -12 or y = 9

Since the number of days cannot be negative, then,

Number of days that James worked will be 9 days

8 0

2 years ago