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fenix001 [56]
3 years ago
10

[02.05] Solve for x: −3x + 3 < 6

Mathematics
2 answers:
NeX [460]3 years ago
8 0
-3x+3<6
minus 3 both sides
-3x<3
divide both sides by -3, don't forget to flip sign
x>-1
Luba_88 [7]3 years ago
4 0

Answer:

x>-1

Step-by-step explanation:

The given inequality is -3x+3

Subtract 3 to both sides of the inequality

-3x

Now, divide both sides by -3. Whenever, we divide/multiply  both sides by a negative number then the inequality sign gets reversed. Thus, we have

\frac{-3x}{-3}>\frac{3}{-3}\\\\x>-1

Hence, the solution is x>-1

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Emma has money into savings accounts. One rate is 8% and the other is 12%. If she has $450 more in the 12% account and the total
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Let's say that the value invested in the account with a rate of 8% is "x", then the amount invested in the account with a rate of 12% is:

x+450

To calculate the total interest we need to calculate the interest of each individual account and sum them:

\begin{gathered} \frac{8}{100}\cdot x=0.08\cdot x \\ \frac{12}{100}\cdot(x+450)=0.12\cdot x+54 \end{gathered}

The total interest is the sum of the two expressions above:

\begin{gathered} 220=(0.08\cdot x)+(0.12\cdot x+54) \\ 220=0.08\cdot x+0.12\cdot x+54 \\ 220-54=0.2\cdot x \\ 166=0.2\cdot x \\ 0.2\cdot x=166 \\ x=\frac{166}{0.2} \\ x=830 \end{gathered}

The value invested in the account with 8% interest is 830, the one invested in the account with 12% interest is 1280.

7 0
1 year ago
9/10x-1/5y=52/5 what is x and y
Nadusha1986 [10]

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so we have to do the other side

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7 0
3 years ago
Please help me!!! I will try to mark brainliest if the answer is correct!
netineya [11]

Answer:

I think the first is answer bcz 35+55=90 ..... 180-90=90

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