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2 years ago

Solve the solution to the equation -2x+1=9 step by step

Mathematics

2 answers:

Sergio039 [100]2 years ago

7 0

$-2x+1=9\\
-2x=8\\
x=-4$

Marizza181 [45]2 years ago

4 0

<u>-2x + 1 = 9</u>

Add 2x to each side of the equation:

1 = 2x + 9

Subtract 9 from each side:

-8 = 2x

Divide each side by 2 :

<u>-4 = x</u>

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Write and Solve an equation to determine the missing dimension of the prism with a volume of 160cm. Height is missing the number

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3 years ago

The function p(x) = - 2(x-9)2 + 100 is used to determines the profit on T-shirts sold for x dollars. What would the profit from

dolphi86 [110]

ANSWER

$28

EXPLANATION

The profit function is given as:

$p(x) = - 2 {(x - 9)}^{2} + 100$

where x is the price of the T-shirt in dollars.

To find the profit on a T-shirt whose price is $15, we substitute x=15 into the function and simplify.

$p(15) = - 2 {(15 - 9)}^{2} + 100$

We simplify to get:

$p(15) = - 2 {(6)}^{2} + 100$

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2 years ago

What is the area of the triangle

Reika [66]

Base x height divided by 2
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80÷2=40
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3 years ago

What percent of 134 is 66? (To the nearest tenth of a percent)

seraphim [82]

Answer:

66 is 49.2537313% of 134

Step-by-step explanation:

so 49.26

7 0

3 years ago

Read 2 more answers

Stock worth $80 a share dropped in value by 15% on Tuesday, then increased by $7 the next Wednesday and, finally, increased by 1

Nutka1998 [239]

<h2>Steps</h2>

So here are a couple expressions when a value changes by percentage (p = percentage in decimal form and m = original value):

When <em>decrease</em>: (1 - p)m
When <em>increase</em>: (1 + p)m

So firstly, the $80 share dropped by 15%. Since this is a <em>decrease</em>, follow the appropriate expression:

$15\%=0.15\\\\(1-0.15)*80\\0.85*80\\68$

<em>On Tuesday, the share went from $80 to $68</em>

Next, on Wednesday the share increased by $7. With this, just add $68 and 7.

$68+7=75$

<em>On Wednesday, the share went from $68 to $75</em>

Lastly, on Thursday the share increased by 12%. Since this is an <em>increase</em>, follow the appropriate expression:

$12\%=0.12\\\\(1+0.12)*75\\1.12*75\\84$

<h2>Answer</h2>

<u>The final price of the share is $84.</u>

7 0

3 years ago