3 years ago

Which is one way to check out the answer to 129 ÷ 4 =30

Mathematics

2 answers:

hjlf3 years ago

8 0

Answer:

idk

Step-by-step explanation:

you dont know

Lana71 [14]3 years ago

3 0

30*4=120 not 129

So if we use a calculator the correct answer is 32 1/4

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Type the correct answer for each box write your answer in decimal form rounded to the nearest tenth if necessary type the soluti

stira [4]

The solution is $x=-1$ and $x=-0.5$

Step-by-step explanation:

The expression is $2x(x+1.5)=-1$

Multiplying the term $x+1.5$ by $2x$ , we get,

$2x^{2} +3x=-1$

Adding both sides by 1,

$2x^{2} +3x+1=0$

Taking factor, we get,

$\begin{array}{r}{x^{2}+2 x+x+1=0} \\{2 x(x+1)+1(x+1)=0} \\{(2 x+1)(x+1)=0}\end{array}$

Equating the factors to 0,

$\begin{aligned}2 x+1 &=0 \\2 x &=-1 \\x &=-\frac{1}{2}\\x&=-0.5\end{aligned}$ and $\begin{aligned}x+1 &=0 \\x &=-1\end{aligned}$

Thus, the smaller value is $x=-1$

The solution is $x=-1$ and $x=-0.5$

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3 years ago

Which is one way to check out the answer to 129 ÷ 4 =30​

Which is one way to check out the answer to 129 ÷ 4 =30