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mylen [45]
3 years ago
8

Change 26 out of 40 to a percentage

Mathematics
1 answer:
GenaCL600 [577]3 years ago
6 0

Answer:

65

Step-by-step explanation:

26 divided by 40 then multiply by a hundred

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If F(x)=3x^2-2 find (-3) x f (x)
Ivan

Answer:

-9x²+6

Step-by-step explanation:

f(x)=3x^2-2

g(x)=(-3) x f (x)

  • g(x)= -3*3x²-3*(-2)= -9x²+6
  • g(x)= -9x²+6
4 0
2 years ago
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Solve for x: −3(x + 3) = −3(x + 1) − 5.
erastova [34]
-3(x+3)= -3(x+1)-5
-3x+9=-3x+3-5 
so you would have just distributed then you combine like terms and get
-3x+9=-3x-2
then add two to both sides and get
-3x+9=-3x-2
-3x+2=-3x+2
-3x+11=-3x
+3x+11=+3x
0x+11=0x 
so 11+0x 
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4 0
3 years ago
Does anybody know what they’ll ask on module 5 algebra one dba for flvs I need is ASAP
Allisa [31]

Answer:

jPOINTS

Step-by-step explanation:

5 0
2 years ago
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in 2009 a total of R36 000 was invested in two accounts. One account earned 7% annual interest and the other earned 9% .The tota
Akimi4 [234]

a = amount invested at 7%

b = amount invested at 9%

we know the amount invested was ₹36000, thus we know that whatever "a" and "b" are, a + b = 36000.  We can also say that

\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{7\% of a}}{\left( \cfrac{7}{100} \right)a}\implies 0.07a~\hfill \stackrel{\textit{9\% of b}}{\left( \cfrac{7}{100} \right)b}\implies 0.09b

since we know the interest earned from the invested was ₹2920, then we say that 0.07a + 0.09b = 2920.

\begin{cases} a + b = 36000\\\\ 0.07a+0.09b=2920 \end{cases} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{using the 1st equation}}{a + b = 36000\implies \underline{b = 36000-a}}~\hfill \stackrel{\textit{substituting on the 2nd equation}}{0.07a~~ + ~~0.09(\underline{36000-a})~~ = ~~2920} \\\\\\ 0.07a+3240-0.09a=2920\implies 3240-0.02a=2920\implies -0.02a=-320 \\\\\\ a=\cfrac{-320}{-0.02}\implies \boxed{a=16000}~\hfill \boxed{\stackrel{36000~~ - ~~16000}{20000=b}}

5 0
2 years ago
The isosceles triangle has a perimeter of 7.5 m. Which equation can be used to find the value of x if the shortest side
soldier1979 [14.2K]

Answer:

<u>(7.5-2.1) /2</u>

<u>If the shortest side measures 2.1 m</u>.

<em>7.5-2.1 =5.4.</em> Then divide by 2 each side is 2.7m

7 0
3 years ago
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