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Leya [2.2K]
2 years ago
12

Trying to see who would be the first to answer an easy question- Right answers onlyyy

Mathematics
2 answers:
neonofarm [45]2 years ago
7 0
I think if you do 20 multiplied by 5 it would be $100
sashaice [31]2 years ago
7 0
Total change = 20 times $5 = $100
Total change = quantity times unit of change
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If x2 = 30, what is the value of x?
nataly862011 [7]

Subtract 30, then factor the equation.

... x² = 30

... x² - 30 = 0

... (x -√30)(x +√30) = 0

By the zero product rule, the solutions are values of x that make a factor be zero.

... x - √30 = 0 . . . . the first factor is zero

... x = √30

... x + √30 = 0 . . . . the second factor is zero

... x = -√30

The solutions are . . .

... x = ±√30 . . . . . matches your 3rd choice

6 0
3 years ago
Read 2 more answers
The length of a rectangle is three less than four times the width. The perimeter of the rectangle is 54 feet. Find the width of
kirill115 [55]

Answer:

6 ft

Step-by-step explanation:

Let the width = w

Then the length = 4w - 3

perimeter = 2(length + width)

perimeter = 2(4w - 3 + w)

perimeter = 2(5w - 3)

perimeter = 10w - 6 = 54

10w - 6 = 54

10w = 60

w = 6

Answer: The width is 6 ft

4 0
3 years ago
today each cookie costs 0.75 less than the normal price. pight now if you buy 7 of them it will only cost you 2.80 . writw an eq
lbvjy [14]

The normal price of each cookie is $1.15 derived from the equation, c =today price of each cookie + 0.75

<u>Solution:</u>

Given, Today each cookie costs 0.75 less than the normal price.

Right now if you buy 7 of them it will only cost you 2.80

We have to write an equation to determine the normal price of each cookie(c)

And, we are given that, today 7 cookies cost 2.80

Let the cost of one cookie today be “n”

Then we get,

Today 7 cookies ⇒ 2.8

Then, 1 cookie ⇒ n  

By criss cross multiplication we get,

\begin{array}{l}{7 \times n=2.8 \times 1} \\\\ {\rightarrow 7 n=2.8} \\\\ {\rightarrow n=0.4}\end{array}

Which means that, each cookie costs $0.4 today

Now, we know that,

<em>normal price of each cookie, c = today price of each cookie + $ 0.75  </em>

c = 0.4 + 0.75

c= 1.15

Hence, the normal cost of each cookie is $1.15 derived from the equation, c = today price of each cookie + 0.75

3 0
3 years ago
Whoever can make me laugh with good joke i give brainlliest
Ostrovityanka [42]

Answer:

Q:Why was the baby ant confused?

A:Because all it's uncles were ants!!

LOL SO BAD!!

3 0
4 years ago
Which number is an irrational number?
Kobotan [32]

Answer

the answer is D square root of 16 expression 3

6 0
2 years ago
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