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uranmaximum [27]
3 years ago
7

What is 50% of 30? anyone

Mathematics
2 answers:
mr_godi [17]3 years ago
4 0

Answer:

15

Step-by-step explanation:

usually to find a percent of a number I convert the percent to decimal form and multiply that by the value.

Example: 50%=0.50

0.50*30=15

but since this is an easy one I just took half of 30 which if 15

hope this helps <3

tensa zangetsu [6.8K]3 years ago
3 0

Answer:

15

Step-by-step explanation:

.5 * 30 = 15

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Pls help this is really important
oee [108]

Answer:

x = 30 I'm sure hope this helps

7 0
2 years ago
Josh volunteered at the zoo for 14 hours in one month. This was 3 1/2 times as many hours as Gina volunteered. How many hours di
jonny [76]
This one you can't really make a formula for or anything, but it's fairly simple to figure out, with a bit of guess and check.
14 is really close to 15, but that's bigger, so let's try a smaller number that would work.
It has to be divisible by 2, because you've got a whole number that is 3 1/2 times the other number. (1/2 of a whole number means it's divisible by 2).
10 is divisible by 2,
10 ÷ 2 = 5
But, 10 x 3 = 30 which is much bigger than 14.
So, we've got to start with a smaller number.
Let's try something really small, like 4. We could try 2, but 2 x 3 = 6, which, even with 1/2 of 2, isn't nearly close to 14.
Now, 4 x 3 = 12
That's quite close to 14.
And 1/2 of 4 is 2.
All we do now is add 12 to 2 and see if it works.
12 + 2 = 14
14 = 14
This one works.
That means that Gina volunteered for 4 hours, because 3 1/2 x 4 = 14.
5 0
3 years ago
Read 2 more answers
TRUE OR FALSE:<br><br> if two numbers are mutiples of 11, then their sum is a mutiple of 11
EleoNora [17]
FALSE
only 1 times 11 makes 11
if you add it that makes 12
:)
7 0
3 years ago
Read 2 more answers
Which answer is a soultion to the equation lk+9l=4
REY [17]

Answer:

k=-5 or k= -13

Step-by-step explanation:

lk+9l=4

k+9=4 or k+9=-4

k=-5 or k= -13

7 0
3 years ago
What’s the answer??(SOMEONE PLEASE HELP ME)
Evgesh-ka [11]

To find f^{-1}, you can switch the "x" and "f(x) or y" in the equation.

f(x) = \sqrt[3]{x-2} +8

y = \sqrt[3]{x-2}+ 8

x = \sqrt[3]{y-2}+8

Now you need to isolate the "y"

x = \sqrt[3]{y-2}+8   Subtract 8 on both sides

x - 8 = \sqrt[3]{y-2}  Cube ( ³ ) each side to get rid of the ∛

(x-8)^{3} = (\sqrt[3]{y-2}) ^{3}

(x-8)^{3} = y -2   Add 2 on both sides

(x-8)^{3}+2 = y


f^{-1} = (x-8)^{3} + 2


5 0
3 years ago
Read 2 more answers
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