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k0ka [10]
3 years ago
13

Marco does 14 extra math problems each school night how many extra problems does he do each week. there are 5 school nights in a

week
Mathematics
2 answers:
valkas [14]3 years ago
6 0
5 school nights* (14 math problems/ 1 school night)= 70 math problems.
(Note that the unit cancels out so you get the answer)

The final answer is 70 math problems~
Alexus [3.1K]3 years ago
4 0
Marco does 70 extra math problems each week. 14(5)=70 
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it was estimated that the united states would need 6200 more veterinarians in 2012. The percent error was 10%. if the estimate w
Margaret [11]
5580 veterinarians were actually needed. 

To find this you must find what is 10% of 6200. 

In math, of = multiplication. 

So you multiply 10% and 6200. In order to do so, you must turn the percentage into a decimal or fraction. So 0.1 x 6200

That should get you 620. However, that IS NOT your final answer, since 620 is only 10% of the total, not the amount needed.

To get the actual amount of veterinarians, you subtract 620 from 6200, and should get 5580, the final answer. 
4 0
3 years ago
George earns $455 per week. George recieves a 20% raise. How can george calculate his new weekly per rate?
lara [203]
There are two ways to calculate his new pay. Choose whichever is easier for you.

OPTION 1:
multiply current pay by 20%, then add the result to the current pay

Step 1:
multiply pay by 20% increase
=$455 * 20%
=$91 increase

Step 2:
add pay increase from step 1 to current pay rate

=$455 + $91
=$546 new weekly rate


OPTION 2:
multiply current pay by (1 + 20%)

=($455)(1 + 20%)
=(455)(1.20)
=$546 new weekly rate


ANSWER: His new weekly rate is $546 per week.

Hope this helps! :)
4 0
3 years ago
Formula for the perimeter of a rectangle P=2a + 2b, for b
bagirrra123 [75]
My answer is: P/2a = 2b
if that's wrong then im sorry I got it by dividing 2a on each side so 2b would be alone
4 0
4 years ago
Read 2 more answers
Simplify 3(x+2=5).Explain how you found your answer
Simora [160]

Answer:

3(x+2=5)

=3(x=5-2)

=3(x=3)

=3(3)

=3×3

=9

3 0
3 years ago
I need help with the first one
muminat

Answer and step-by-step explanation:

Becasue Manuel rode 8 miles in 40 minutes so he rode 1 mile in:

40 / 8 = 5 minutes

Because Eliza rode 5 miles in 30 minutes so she rode 1 mile in:

30/5 = 6 minutes

So manuel rode faster than eliza becasue:

- Manuel rode 1 mile in 5 mins

- Eliza rode 1 mile in 6 mins

So manuel rode faster than eliza

Hope this help you :3

3 0
4 years ago
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