3 years ago

How do I start off these problems?

1 answer:

8 0

First of all you have to make them equal to each other. What I mean is the following
3x+20=2x+40
Then you should just solve for x

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Simplify:

ryzh [129]

7.2(2.8r-4.5s)+9.34r -1.25s
=20.16r - 32.4 +9.34r -1.25s
=29.5r - 33.65s

So the answer is A
hope I can help u

7 0

3 years ago

Noemi flips a coin three times and get tails, tails and heads in that order

Maksim231197 [3]

I think it’s B............

5 0

3 years ago

Find an explicit rule for the nth term of the sequence. 9, 36, 144, 576, ...

Sphinxa [80]

Something like (n4)
N representing the number before. For example, if n=9 then (9*4)=36.
Hope it makes since for you. I know there might be more to it, but that's what I know off the top of my head.

7 0

4 years ago

Read 2 more answers

Simplify 3/15 - 2/25

Alik [6]

Make the denominators equal by multiplying them:
$\frac{18}{75} - \frac{6}{75}$
Subtract:
$\frac{12}{75}$
Simplify:
$\frac{4}{25}$
The answer is
$\frac{4}{25}$
or 0.16

4 0

3 years ago

Write there ratios that are equivalent to one given : The ratio of right handed students to left handed students is 18:4

ddd [48]

Would 9:2 as a ratio work?

6 0

4 years ago