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Greeley [361]
4 years ago
10

Seven less than negative two times a number is greater than or equal to 41

Mathematics
1 answer:
kotegsom [21]4 years ago
4 0

Solution, -2n-7\ge \:41\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:x\le \:-24\:\\ \:\mathrm{Interval\:Notation:}&\:(-\infty \:,\:-24]\end{bmatrix}

Steps:

\mathrm{Add\:}7\mathrm{\:to\:both\:sides}, -2n-7+7\ge \:41+7

\mathrm{Simplify}, -2n\ge \:48\\\\

\mathrm{Multiply\:both\:sides\:by\:-1\:\left(reverse\:the\:inequality\right)}, \left(-2n\right)\left(-1\right)\le \:48\left(-1\right)

\mathrm{Simplify}, 2n\le \:-48

\mathrm{Divide\:both\:sides\:by\:}2, \frac{2n}{2}\le \frac{-48}{2}

\mathrm{Simplify}, n\le \:-24

The correct answer is n\le \:-24

I hope this helps!!!


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A trapezoid has an area of 30m^2. if all of its side lengths are tripled, what will its new area be​
Norma-Jean [14]

Answer:

270

Step-by-step explanation:

Because we do not know what the side lengths are, as long as they multiply to 30m^2, it's fine

For this question, let's just say the base is 5, and the height is 6. If we triple 5, we get 15, and if we triple 6, we get 18. 15*18=270

Now what if, the sides are not 5 and 6. Will the area still be the same? Let's find out.

10*3=30 so we can say for this answer, the base is 3, and the height is 10.

10 tripled is 30, and 3 tripled is 9. 30*9=270

So as we look at these 2 answers. we can conclude that the new area, no matter the side lengths, will be 270

Hope this helpes!

5 0
4 years ago
Marissa subtracted a negative number from a positive number. Her result was negative. Is that reasonable? Explain.
s2008m [1.1K]
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3 years ago
Read 2 more answers
Write the sentence as a conditional statement 5x+2=12 means that 5x=10
Cerrena [4.2K]

Answer: Here the required conditional statement would be "If we subtract 2 from the both sides of 5x+2=12 then we get 5x=10".

Step-by-step explanation:

A conditional statement represented by m n , is an if-then statement in which m is a hypothesis followed by conclusion n.

A conditional statement helps to find the answer by the use of a set conditions on it.

In the given question "if we subtract 2 from the both sides of 5x+2=12" is our hypothesis,whereas "then we get 5x=10 is our conclusion."


4 0
4 years ago
Can u do this bro 100x7+8-678x56
Gelneren [198K]
PEMDAS 100 times 7 is 700 678 times 56 is 37968 700 +8 - 37968 -37260
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3 years ago
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