Smart people help me please

Mathematics

2 answers:

Allushta [10]4 years ago

4 0

Answer:

X=5

Step-by-step explanation:

8x+50=90

8x=40

x=5

Llana [10]4 years ago

3 0

Answer:

X=5

Step-by-step explanation:

1: 90 plus 50 because there is a 90 degree angle

2: 8x=140 and then you divide by 8

3: x=5 I hope I helped you and I hope you have a wonderful day

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What is the percent of 840 is 546

lesantik [10]

K so its an equation 546 x
over = over
840 100
when u do cross multiplication it will be 840x=546 * 100
x is about 64%
Hope this is helpful

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3 years ago

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s2008m [1.1K]

Answer:

where is the rest of the question?

Step-by-step explanation:

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3 years ago

Find the surface area no links no pdfs just type it into the answer section will give brainliest

rewona [7]

Check the picture below.

let's firstly convert the mixed fractions to improper fractions.

$\stackrel{mixed}{7\frac{1}{2}}\implies \cfrac{7\cdot 2+1}{2}\implies \stackrel{improper}{\cfrac{15}{2}} ~\hfill \stackrel{mixed}{12\frac{1}{2}}\implies \cfrac{12\cdot 2+1}{2}\implies \stackrel{improper}{\cfrac{25}{2}} \\\\[-0.35em] ~\dotfill$

$\stackrel{\textit{\Large Areas}}{\stackrel{two~triangles}{2\left[ \cfrac{1}{2}\left(\cfrac{15}{2} \right)(10) \right]}~~ + ~~\stackrel{\textit{three rectangles}}{(10)(15)~~ + ~~\left( \cfrac{15}{2} \right)(15)~~ + ~~\left( \cfrac{25}{2} \right)(15)}} \\\\\\ 75~~ + ~~150~~ + ~~112.5~~ + ~~187.5\implies \boxed{525}$