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2 years ago

What is x? 5x - 1 = - 8

Mathematics

2 answers:

kolezko [41]2 years ago

8 0

Answer:

x = -7/5 or -1.4

Step-by-step explanation:

Given :-

5x - 1 = -8

To Find :-

Solving :-

5x - 1 = -8

5x = -7

x = -7/5 or -1.4

Solution :-

x = -7/5 or -1.4

postnew [5]2 years ago

4 0

Answer:

x = -1.4, -7/5, or -1 2/5 (all same answer, just in different forms)

Step-by-step explanation:

Step 1: Add 1 to both sides.

$5x-1+1=-8+1$
$5x=-7$

Step 2: Divide both sides by 5.

$5x/5=-7/5$
x = -1.4, -7/5, or -1 2/5.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

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Answer:

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Step-by-step explanation:

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→ That means multiply the width by 3, then subtract 2 from the product

∴ The length of the rectangle = 3(x) - 2

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∴ A(x) = (3x - 2) × x

→ Multiply each term in the bracket by x

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∴ A(x) = 3x² - 2x

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∵ The width = x

∴ x = 2

→ Substitute x by 2 in A(x)

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∴ A(2) = 8

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The school collected money for sweatshirts. If 75 students bought sweatshirts and the total cost was $1,260, how much did each s

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Step-by-step explanation:

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3 years ago

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joja [24]

Answer:

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Fiesta28 [93]

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&\stackrel{miles}{distance}&\stackrel{mph}{rate}&\stackrel{hours}{time}\\
&------&------&------\\
Downstream&90&b+8&t\\
Upstream&90&b-8&6-t
\end{array}
\\\\\\
\begin{cases}
90=t(b+8)\implies \cfrac{90}{b+8}=\boxed{t}\\\\
90=(6-t)(b-8)\\
----------\\
90=\left( 6-\boxed{\cfrac{90}{b+8}} \right)(b-8)
\end{cases}$

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\\\\\\
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\\\\\\
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\\\\\\
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\begin{cases}
\boxed{32}\\
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\end{cases}$

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