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3 years ago

How do I find the value of X?

Mathematics

1 answer:

marusya05 [52]3 years ago

6 0

Answer:

x=75 degrees

Step-by-step explanation:

so angles in a triangle add up to 180 degrees. Since we have all of the angles(even though we may not know the exact amount) we make an equation, 2x+30=180 which simplifiesto 2x=150, and so x=75 degrees. hope this helps

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Ann spent $24 on fruit at the grocery store. She spent a total of $80 at the store. What percentage of the total did she spend o

labwork [276]

The total was 80 dollars
The amount spent on fruit was 24 dollars.

The % spent on the fruit was (24/80) * 100
The % spent on the fruit was 0.3 * 100 = 30% <<<< Answer

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3 years ago

Select all that apply.

yarga [219]

Answer:

B,D

Step-by-step explanation:

Just use PEMDAS, comment in more explanation is needed

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3 years ago

Use the quadratic formula to solve x2 – 5x + 3 = 0.

Anit [1.1K]

Answer:

x is 4.30 and 0.697

Step-by-step explanation:

Quadratic formular:

$x = \frac{ - b± \sqrt{ {b}^{2} - 4ac } }{2a} \\$

a » 1

b » -5

c » 3

$x = \frac{ - ( - 5)± \sqrt{ {( - 5)}^{2} - (4 \times 1 \times 3)} }{(2 \times 1)} \\ \\ x = \frac{5± \sqrt{13} }{2}$

Therefore, values of x :

$x = \frac{5 + \sqrt{13} }{2} \: \: and \: \: \frac{5 - \sqrt{13} }{2} \\ \\ x = 4.30 \: \: and \: \: 0.697$

7 0

3 years ago

What is the height of a rectangle when I base is 8 ft and the area is 30 ft

ZanzabumX [31]

To do this you have to fill in the equation $base*height=area$ , but you don't know the height, so we'll use $h$ for height. Plugging in the numbers you gave me, the equation is: $8*h=30$ . To solve this, we need to find $h$ . To find height you do $\frac{area}{base}$ . Doing this, we get $h$ = 3.75 ft.

Hope this helped!

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3 years ago

Solve the following equation:8p-8=2p+16

EleoNora [17]

Answer: p=4

Step-by-step explanation: Isolate the variable by dividing each side by factors that don't contain the variable.

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2 years ago