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LOL!!

Of course, "close only counts in horseshoes and hand grenades." Especially for math. Or something like that...

1/3  • 9 = 3

OK....good job...

You only made a slight subtraction error, Mathematician.....I still gave you points for good effort !!!

A = $${\mathtt{\pi}}$$r^2

You're right; a subtraction error on my part. I knew it had to be a whole number and I'll fix mine.

pOH =  - log [OH^-]

pOH = - log [1.00 x 10^-10] = - ( - 10) = 10

pOH = 10

245 = 70t + 35       subtract 35 from both sides

210 = 70t                divide by 70 on both sides

3 = t   (3 hrs. )

First, we replace x with 245.

So x = 70t + 35 becomes:

245 = 70t + 35

Next, we isolate the variable, t.

So we take away 35 from both sides:

245 - 35 = 70t + 35 - 35

210 = 70t

Than we divide each side by 70, so t is alone:

210/70 = 70t/70

3 = t

And that's what t, or the hours worked was!

Excellent, Mathematician....I like the way you did that !!!

Yes, the answer is $52. If you need any help with equations, just use the site's calculator!

claps to you!!!👏👏👏

You can...

Stick negative in front of any number

Multiply by -1

-x, but x being a positive value

x, but x being a negative value

Find the opposite of a positive

Put a negative symbol in front of an absolute value

Add a negative number with a larger number value

Subtracting a positive number with a larger value

Hope I helped!

well done, mathematician... well done

This problem constantly gets asked (probably by the same person, presumably a spammer.)

If you don't know how to add:

9: O O O O O O O O O

10: O O O O O O O O O O

Counting the total number of circles, we get 19.

Also you can digit add:

10

+9

19

The one's digit is 9, because 0 + x always equals x.

The ten's digit stays the same, because nothing is added to it.

multiply it by (-1)??? maybe... help me out CPhill

Excellent !!!

If the scale is 1/2, then you multiply each side by 1/2 to get its size on the blueprints:

$${\mathtt{10}}{\mathtt{\,\times\,}}\left({\frac{{\mathtt{1}}}{{\mathtt{2}}}}\right) = {\mathtt{5}}$$

$${\mathtt{12}}{\mathtt{\,\times\,}}\left({\frac{{\mathtt{1}}}{{\mathtt{2}}}}\right) = {\mathtt{6}}$$

So your new dimensions on the blueprints are 5 inches by 6 inches.

c < 7! for goodness sakes

AHHH yes i can!

Hey....Brittany......can you finish solving for c here???   (I know you can do it!!)

wait. what kind of calculator do u have???

Yeah....about the same, dressed like an Eskimo.....pardon me while I go outside and check on the reindeer !!!!