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Nina [5.8K]
3 years ago
12

-10 + x =18 please help meee

Mathematics
2 answers:
algol [13]3 years ago
7 0

Answer:

shouldn't it be 8? I think it might be. Sorry if I'm wrong...

Step-by-step explanation:

tester [92]3 years ago
6 0
28.................
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A cheetah ran 300 ft. in 2.92 seconds. What was the cheetah's average speed in miles per hour? Show your work
vivado [14]
So, the cheetah's speed is 300/2.92 ft/sec

now, to convert it to miles/hr

well, there are 5280 ft in 1mile
and 60 minutes in 1hr
and 60 seconds in 1minute

so   \bf \cfrac{300\ f}{2.92\ s}\cdot \cfrac{1\ mi}{5280\ f}\cdot \cfrac{60\ min}{1\ hr}\cdot \cfrac{60\ sec}{1\ min}\\\\\\ \cfrac{300\cdot 1\cdot 60\cdot 60}{2.92\cdot 5280\cdot 1\cdot 1}\cdot \cfrac{f}{f}\cdot \cfrac{min}{min}\cdot \cfrac{sec}{sec}\cdot \cfrac{mi}{hr}

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6 0
2 years ago
13x^-5 y^0/5^-3 z^-10
VMariaS [17]

Answer:

\frac{1625z^{10}}{x^{5}}

Step-by-step explanation:

We want to simplify:

\frac{13x^{-5}y^0}{5^{-3}z^{-10}}

We rewrite as positive index to get:

\frac{13y^05^{3}z^{10}}{x^{5}}

This simplifies to

\frac{13*1*125z^{10}}{x^{5}}

This will finally give us:

\frac{1625z^{10}}{x^{5}}

We cannot simplify further.

Hence the simplest form is \frac{1625z^{10}}{x^{5}}

7 0
2 years ago
Convert 156% to a decimal
Fofino [41]

Answer:

1.56

Step-by-step explanation:

156 divided by 100

4 0
3 years ago
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alex41 [277]

Answer:

28 pieces

Step-by-step explanation:

14.9 ÷ 0.52 = 28.653

8 0
2 years ago
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