Answer:
78.75 (simple) 81.54 (compound)
Step-by-step explanation:
Simple interest without compounding : I = P * (1 + rt) -P
I: interest P: primary investment r: annual rate t: time in year
I = =750 * (1+ 0.035*3) -750 = 78.75
Compound interest I = (P *(1 +r)^ t)-P
I' = 750*(1+0.035)*(1+0.035)*(1+0.035) - 750 = 81.54
Answer:
(a) 2.27 lb/$
(b) 0.10 mi/min
Step-by-step explanation:
<h3>(a)</h3>
Pounds per dollar is found by dividing pounds by dollars:
(25 lb)/($11.00) ≈ 2.272727... lb/dollar
The digit in the thousandths place is less than 5, so that digit and all digits to its right are dropped when rounding to hundredths.
2.27 pounds per dollar
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<h3>(b)</h3>
Speed in miles per minute is found by dividing miles by minutes:
(6 mi)/(58 min) ≈ 0.103448... mi/min
Rounding to hundredths is done the same way as above.
0.10 miles per minute
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If the digit to the right of the place you're rounding to is 5 or more, then 1 is added in the place you're rounding to when digits to its right are dropped.
-12xy+4xy
Collect the like terms which means add negative 12 + positive 4 , then you get -8 and just add xy to the end because the like terms were collected. Your best bet is to try to create a number line and go off of that if you are still confused.
Answer:
the answer will be the letter Y
Step-by-step explanation:
because the darker shaded side are at the bottom and one is at the top and don't forget about the two triangles
The question is incomplete, the complete question is;
If in 0.5 min the tank gets 0.8 gallons of the water then
how many gallons will be in 1 min ?
how many gallons will be in 3 min?
and how long it takes for 40 gallons?
Answer:
1.6 gallons
4.8 gallons
25 mins
Step-by-step explanation:
This question has to do with proportion.
If it takes 0.5 mins for the tank to get 0.8 gallons
in 1 minute the tank will get 0.8 * 1/0.5 = 1.6 gallons
In 3 minutes the tank will get 3 * 1.6 gallons = 4.8 gallons
if it takes 1 min to get 1.6 gallons
it will take x mins to get 40 gallons
x = 1 * 40/1.6 = 25 mins