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BARSIC [14]
3 years ago
5

If 20 is decreased by 40%, what is the new amount?

Mathematics
2 answers:
tester [92]3 years ago
8 0

12

Please go on my acc and help

aksik [14]3 years ago
3 0

Answer: The correct answer is 12.

Step-by-step explanation: If 20 is decreased by 40% the first thing that we need to do is calculate how much is 40% of 20.

20 x .4 = 8

Now, subtract 8 from 20:

The answer:

20 - 8 = 12

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mafiozo [28]
0.5?maybe I just divided 1.50 by 3
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WILL GIVE BRAINLIEST + 5 STAR<br><br> x=<br> Length=<br> Width=
jarptica [38.1K]

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16

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8

Step-by-step explanation:

6 0
3 years ago
Simplify (square root 2)( square root of 2^3)
steposvetlana [31]

Answer:

\large\boxed{(\sqrt2)(\sqrt{2^3})=4}

Step-by-step explanation:

(\sqrt2)(\sqrt{2^3})\qquad\text{use}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\\\=\sqrt{2\cdot2^3}\qquad\text{use}\ a^n\cdot a^m=a^{n+m}\\\\=\sqrt{2^{1+3}}=\sqrt{2^4}\\\\(1)=\sqrt{2^{2\cdot2}}\qquad\text{use}\ (a^n)^m=a^{nm}\\\\=\sqrt{(2^2)^2}\qquad\text{use}\ \sqrt{a^2}=a\ \text{for}\ a\geq0\\\\=2^2=4\\\\(2)=\sqrt{2\cdot2\cdot2\cdot2}=\sqrt{16}=6\ \text{because}\ 4^2=16

8 0
3 years ago
Find the product.<br> 2y2(3x + 5z)<br> 5xy2 + 7y²z<br> 6xy2 + 10y2z2<br> 6xy2 7 10y?z
jolli1 [7]

Answer:

6xy² + 10y²z is the product answer

Step-by-step explanation:

5 0
2 years ago
Cv0627
kari74 [83]

Answer:

dr. potter provides 54 vaccinations TOTAL (including both measles and polio).

p+m=54

since there are 4 doses of polio and of measles, you have to use a variable to distinguish how many doses were given for measles and polio out of 142 given doses.

4p+2m=142

p+m=54

4p+2m=142

^^system of equation

p+m=54

4p+2m=142

p=54-m

4p+2m=142

(substitute 54-m to the equation)

4(54-m)+2m=142

m=37

(collect like terms, then substitute the value of m into the first equation)

p=54-37

p=17

(m, p)=(37, 17)

Step-by-step explanation:

i hope this helps, sorry for the wait

5 0
3 years ago
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