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Brilliant_brown [7]
4 years ago
13

Jack earns $11 every 1 hour he works. this week he Earned $99. how many hours did he work this week?

Mathematics
2 answers:
Flura [38]4 years ago
4 0

Answer:

He worked 9 hours that week.

Step-by-step explanation:

soldi70 [24.7K]4 years ago
3 0

Answer:

9 hours

Step-by-step explanation:

He earns 11 for every hour,

11/1

And he earned 99, but we don't know how many hours

99/x

Set the expressions equal to each other

11/1=99/x

Cross multiply

11x=99

Divide by 11 on both sides

x=9

So he worked 9 hours

Hope this helps! :)

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A - Frequency
Marina CMI [18]

Answer:

Step-by-step explanation:

When we collect a large data we may find a single entry repeated.  In these cases we prepare frequency distribution with x = the item in one column and f = the no of times it repeats i.e. frequency in other column.

Similarly for class intervals also, we write as frequency to the right side of interval column which gives no of items which fall within the class.

This process ensures compact presenting of data.

Hence we have

a)The number of observations that fall in a class

answer:   Frequency

b) The relative frequency of a class multiplied by 100

answer:   Percentage.  Because when we express probability as a percentage we get total 100

c) The ratio of the frequency of a class to the total number of observations

answer:  Relative frequency

(Relative frequency also known as probability is frequency/total entries)

8 0
3 years ago
Read 2 more answers
At 4:00 am the outside temperature was 28*F. By 4:00 pm that same day it rose to 38 degrees.
BigorU [14]
The temperature is 66*F.
6 0
3 years ago
9.
siniylev [52]

Answer:

Slant height (s)= 12.1 cm

Step-by-step explanation:

Given: Base= 4.5 cm.

           Surface area of right square pyramid= 129.5 cm.

First, calculating slant height (s) of right square pyramid.

Surface area of square pyramid= (a^{2} +2\times a\times s)

a= side of square base.

s= slant height

∴ 129.5= (4.5^{2} + 2\times 4.5\times s)

⇒ 129.5= (20.25+2\times 4.5\times s)

⇒ 129.5= (20.25+9\times s)

Now, opening the parenthesis and subtracting both side by 20.25.

⇒ 109.25=9\times s

cross multiplying both side

∴ Slant height (s)= 12.1

5 0
4 years ago
To find the unit rate for $182
tino4ka555 [31]
Hey there <span>angelinarigole!

Question: 
</span><span>To find the unit rate for $182
----------
14feet

Answer:
</span><span>Divide both 182 and 14 by 14.

182</span>÷14=$13

14÷14=1

Hope this helps!

-Jayden
4 0
4 years ago
Read 2 more answers
Evquivilent Ratio for 23:37
solong [7]

Answer:

46:74

Step-by-step explanation:

7 0
3 years ago
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