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Andreas93 [3]
3 years ago
13

Hall and Mindy are playing a guessing game. Hall tells Mindy: ""The difference between 17 and the square root of my mystery numb

er is 5"". What are two possible numbers that Hall could be thinking of?
Mathematics
1 answer:
cestrela7 [59]3 years ago
5 0

Answer:

The possible number that Hall could be thinking of is 144.

Step-by-step explanation:

Difference between 17 and the square root of my mystery number

This is represented by:

17 - \sqrt{x}

is 5

Then:

17 - \sqrt{x} = 5

What are two possible numbers that Hall could be thinking of?

We have to solve the equation, for x. So

17 - \sqrt{x} = 5

\sqrt{x} = 12

(\sqrt{x})^2 = (12)^2

x = 144

The possible number that Hall could be thinking of is 144.

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Joe and Linda have the opportunity to purchase a new home. The house in Glen Oaks is currently worth $250,000 but is predicted t
Dmitry [639]

You can work out the percentage change and that would help you work out the rate of appreciation :)

The formula is ((new value - old value)/old value) * 100.

So you do \frac{270,000 - 250,000}{250,000} \times 100 = 8\%

Therefore the rate of appreciation is 8% p/a.

7 0
3 years ago
Mr. Portillo paid $123.75 for nine tickets to the football game. Each ticket costs the same amount. What was
ExtremeBDS [4]

Answer:

Each ticket costs $13.75.

Step-by-step explanation:

$123.75 for 9 tickets

\frac{123.75}{9}=13.75

Each ticket costs $13.75.

Hope this helped!! :)

6 0
2 years ago
Read 2 more answers
HURRY I NEED HELP!!!!!!!!!!!!! A circle is drawn within a square as shown.
Anton [14]
The width of the square is 7 cm. This is also the diameter of the circle.

To find the area of the square, you do 7², which is 49 cm². 

To find the area of a circle, you do πr².

The radius is half the diameter, so it's 7 ÷ 2, which is 3.5 cm.

π3.5² ≈ 38.4845100065 cm².

The shaded region is the area of the square minus the area of the circle.  

49 - 38.4845100065 = <span>10.5154899935, but because you're using 3.14 to approximate pi, the closest answer is 10.54 cm</span>².

The answer is 10.54 cm².
3 0
3 years ago
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Pls help!!! if f(x) = 3x-2 and g(x) = 6-4x, fibd f(x) + g(x)
sp2606 [1]
So first off the equation we are solving is f(x) + g(x). So i want to plug in those equations first off. The new equation I get should be 3x-2 + 6 -4x. I then simplify this to -x+4 or 4-x.
6 0
3 years ago
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The sum S of the first n integers is given by the formula S=1/2n(n+1). How many integers must be taken to have a sum of
statuscvo [17]

Answer:

25

Step-by-step explanation:

We require to solve for n, hence

\frac{1}{2} n(n + 1) = 325

multiply both sides by 2 to eliminate the fraction

n(n + 1) = 650

n² + n = 650

subtract 650 from both sides to have equation in standard form

n² + n - 650 = 0 ← in standard form

(n + 26)(n - 25) = 0 ← in factored form

equate each factor to zero and solve for n

n + 26 = 0 ⇒ n = - 26

n - 25 = 0 ⇒ n = 25

however, n > 0 ⇒ n = 25


5 0
3 years ago
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