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2 years ago

The sum of two numbers is 80. If the difference between the same two numbers is 8, find the two numbers.

Mathematics

2 answers:

KengaRu [80]2 years ago

8 0

Numbers are 44 and 36 they have a difference of 8 and combine to make 80

Ronch [10]2 years ago

3 0

Answer:

The numbers are 44 and 36

Step-by-step explanation:

n + n - 8 = 80

2n - 8 = 80

2n (- 8 + 8) = 80 + 8

2n = 88

2n/2 = 88/2

n = 44

44 - 8 = 36

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Some number was divided into 104.13. This quotient was multiplied by 4, after which the resulting product was added to 5. Given

SVEN [57.7K]

Answer:

The initial number is <u>-1218.321</u>.

Step-by-step explanation:

Let the initial number be 'x'.

The number 'x' is divided into 104.13.

So, we divide the number 'x' by 104.13. This gives,

$\dfrac{x}{104.13}$

Now, the quotient is multiplied by 4. So, this means we need to multiply 4 to the fraction above. This gives,

$\dfrac{x}{104.13}\times 4\\\\\frac{4x}{104.13}$

Now, 5 is added to the result. This gives,

$\frac{4x}{104.13}+5$

Now, as per question:

$\frac{4x}{104.13}+5=-41.8$

Now, solving for 'x', we add -5 both sides. This gives,

$\frac{4x}{104.13}+5-5=-41.8-5\\\\\frac{4x}{104.13}=-46.8\\\\4x=-46.8\times 104.13\\\\4x=-4873.284\\\\x=\frac{-4873.284}{4}=-1218.321$

Therefore, the initial number is -1218.321.

6 0

3 years ago

Denise is planning to put a deck in her back yard. The deck will be a 10-by-7-foot rectangle with a semicircle of diameter 4 fee

vladimir2022 [97]

Answer:

$approx. = 85.28 {ft}^{2}$

Step-by-step explanation:

You can think of this as adding the area of the rectangular portion of the deck (length x width) and the semicircular portion (πr^2)/2.

(l×w)+(πr^2)/2

(10×7)+((π2^2)/2

79+2π

$approx. = 85.28 {ft}^{2}$

3 0

3 years ago

The price of an item yesterday was $140. Today, the price fell to $63. Find the percentage decrease

DENIUS [597]

Answer:

it is a 55% decrease

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8 0

3 years ago

The area of one floor tile is 92.16 square inches.What is the area of a kitchen floor covered with 102 floor tiles?

Nataliya [291]

Answer:

9400.32 square inches

Step-by-step explanation:

The area of one floor tiles is 92.16

The area of a kitchen floor covered with 102 floor tiles can be calculated as follows

= 102 × 92.16

= 9400.32 square inches

Hence the area is 9400.32 square inches

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3 years ago

If you were babysitting, would you rather

GREYUIT [131]

Answer:

wouldn't you charge more to get mroe money lol or am i reading this wrong?

Step-by-step explanation:

If i want more money i would pick the 15 dollars and 6 dollars cuz i will get more money..

4 0

3 years ago

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