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tester [92]
3 years ago
8

A firm advertises for workers to address envelopes. Priscilla says she will work 100 hours. Herb will work for 80 hours. If each

can address 10,000 envelopes in the time they work, how long would it take them to address 10,000 envelopes if they work together?
Mathematics
1 answer:
snow_tiger [21]3 years ago
4 0
I'm guessing 90 hours because if you add their hours together it'll be 180 if they work together it'll be like half the time which is 90
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If 3 tons of flower bed mulch cost $480, what is the price per pound?
Goshia [24]
1 ton = 2,000 pounds 
3 tons = 6,000 pounds
$480/6,000 = 0.08 
per pound is $0.08
6 0
3 years ago
The thickness of a part is to have an upper specification of 0.925 and a lower specification of 0.870 mm. the average of the pro
SVETLANKA909090 [29]
To solve this problem, we make use of the z statistic. The formula for the z score is:z score = (x – u) / swhere x is the sample value = 0.90, u is the sample mean = 0.917, and s is the standard deviation = 0.005
Therefore:z score = (0.90 – 0.917) / 0.005z score = -3.4
From the standard probability tables, the p-value for a right tailed test of z = -3.4 is:P = 0.9997
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7 0
4 years ago
when a measurement in inches is converted to centimeters, will the number of centimeters be greater or less than the number of i
Margarita [4]
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4 0
3 years ago
Mary’s trapezoid-shaped garden has a perimeter of 24 yd. She knows the length of three of the sides, 3 yd, 6 yd, and 9 yd.
Anna007 [38]

Answer:

6

Step-by-step explanation:

to find the perimeter of a trapezoid you add all the sides together

therefore we do it backwards

24-3-6-9=6

6 0
2 years ago
Read 2 more answers
If f(x)=5x-1, then f^1(x)=
nordsb [41]

Answer:

(y+1)/5

Step-by-step explanation:

you meant f^-1(x) ?

let y= 5x-1

Make x subject of formula

y+1=5x

x=(y+1)/5

f^-1(x)=(x+1)/5 replace y by x

3 0
3 years ago
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