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PtichkaEL [24]
4 years ago
15

How do i factor 9y cubed -15y square?

Mathematics
2 answers:
Tems11 [23]4 years ago
7 0
Factor out the 3y²
3y²(3y-5)
mixas84 [53]4 years ago
7 0
9<span> y</span><span>3 -15 y2 = 3 y2( 3y-5)</span>
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X^2-3=0 solve for all real values of x
sineoko [7]

Step-by-step explanation:

x²-3=0

x²=3

x=√3

<h2>stay safe healthy and happy.</h2>
3 0
3 years ago
Read 2 more answers
If 3a-2b= 8 and a+3b=7 what is the value of 4a+b?
Fittoniya [83]
Step 1: Find the value of one variable in terms of the other.

a+3b=7\\a=7-3b

Step 2: Substitute the value you just found for this variable in the other equation.

3a-2b=8\\3(7-3b)-2b=8\\21-9b-2b=8\\21-11b=8\\21=8+11b\\13=11b\\\frac{13}{11}=b\\ b=1\frac{2}{11}

Step 3: Use your new value for the second variable to find the first.

a+3b=7\\a+3(1\frac{2}{11})=7\\a+3\frac{6}{11}=7\\\\a=3\frac{5}{11}

Now that we know the values for a and b we can find the value of 4a+b.

4a+b\\4(3\frac{5}{11})+1\frac{2}{11}\\12+\frac{20}{11}+1\frac{2}{11}\\\\12+1\frac{9}{11}+1\frac{2}{11}\\\\\boxed{15}
6 0
4 years ago
all six of the women at the party brought one dozen cookies to share. If a total of 48 cookies are eaten at the party, how many
WINSTONCH [101]

Answer:

24

Step-by-step explanation:

If all 6 women brought a dozen cookies

cookies = 6*12

     There were 72 cookies brought to the party.

48 cookies were eaten

72 -48 = 24

That means there are 24 cookies left

4 0
3 years ago
Elsie bought a video game for $85.00. If the store charges 170% of its cost for the game, how much is the store’s profit?
Anettt [7]
If we take 85 to be the 100%, how much is the retail price, namely the 170%?

\bf \begin{array}{ccll}&#10;amount&\%\\&#10;\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\&#10;85&100\\&#10;x&170&#10;\end{array}\implies \cfrac{85}{x}=\cfrac{100}{170}\implies \cfrac{85\cdot 170}{100}=x

so the retail price is "x", thus the profit will be x - 85.
7 0
3 years ago
a number is 3 1/3 greater than another. If the sum of the numbers is doubled, the result is 19 1/2. What is the smaller number
zimovet [89]

Answer:

77/24

The answer for this question is 77/24                                                                                                                                                                                    

5 0
3 years ago
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