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-Dominant- [34]
3 years ago
9

Alex swam a total of 11.5 hours during the work week and then swam a total of 2.6 hours on the weekends. He swam the same number

of hours each week for 7 weeks. What was the total number of hours Alex swam after 7 weeks?
Mathematics
2 answers:
stira [4]3 years ago
7 0
11.7 hours plus 2.6 hours is 14.3 hours. 14.3 hours times seven weeks equals 98.7 hours.
My name is Ann [436]3 years ago
4 0
98.7 hours            11.5+2.6=14.1x7 weeks =98.7 hours
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A total of $12,000 is invested in two corporate bonds that pay 7.5% and 9% simple interest. The invest wants an annual interest
nlexa [21]

Answer:

$13,200

Step-by-step explanation:

You need to use the simple interest formula

I = P * r * t

I = Interest accrued

P = Principal amount invested

r = Interest rate          you need to divide by 100 to get it in decimal form

t = time, in years        if you are given a partial year, divide the months by 12

P = $12,000                                    

r = 7.5% = .075                                    

t = 1                                                  

But, because we want I to equal $990 then I is

I = $990

So we ignore our P and instead solve for the P that will give us the desired result.

I = P * r * t

$990 = P * .075 * 1

$990 = P.075        Divide each side by .075

$990/.075 = P.075/.075

$990/.075 = P

$13,200 = P

So, to earn an annual interest income of $990, $13,200 will have to be invested in the 7.5% bond.

6 0
3 years ago
I need help with a proof. i only need number 3, 6, & 7. please help!!!
lesya692 [45]

Answer:

boottytff tgggfgv dugddcv

3 0
3 years ago
Please help. I’ll mark you as brainliest if correct.
OlgaM077 [116]

Answer:

4600

Step-by-step explanation:

it is simply the sum of home credit which is

=3000 + 1600

=4600

5 0
3 years ago
How do u simplify the square root of 175
bekas [8.4K]
You could use a calculator or the best way to know is find a perfect square that multiplies another number to make that number. for example, square root of 175 (√175) = √25 times √7. then take the square root of the perfect square and multiply it by the square root. (√25 = 5) so the answer is 5 times √7. or 5√7
4 0
3 years ago
Given line L = ax + by + c = 0, b(its suppose to be the equal sign with the slash going thru it) 0
Serga [27]
<span>ax + by + c = 0
by = - ax - c
  y = -a/b (x) - c/b

so slope = </span>-a/b

answer
-a/b
8 0
3 years ago
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