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zaharov [31]
3 years ago
15

One month,ruby worked 6 hours more than Isaac, and Svetlana worked 4 times as many hours as ruby. Together they worked 126 hours

find the number of hours each person worked.
Mathematics
1 answer:
Misha Larkins [42]3 years ago
8 0
I + 6 = r

4r = s

i + r + s = 126

4i + 24 = 4r

s= 4r

i = r-6

4i+24=i+6
-3i=18

i = 6

Solve the rest
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Lesson 13.3 Checkpoint
Arte-miy333 [17]

Answer:

a. LK = 4√3, JL= 4√6

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Step-by-step explanation:

a. LK =4√3,

LK=KJ= 4√3

sin(45°) = opposite/hypotenuse

hypotenuse (JL)= opposite/sin 45° = 4√3/√2/2 = 8√3/√2 = 8√3√2/2 = 4√6

b.

cos 30° = adjacent/hypotenuse = QR/PQ = 15/PQ

cos 30° = 15/PQ

PQ = 15/cos 30° = 15/√3/2)= 30/√3 = 30√3/3 = 10√3

tan 30° = opposite/adjacent = RP/QR

√3/3 = RP/QR

√3/3 = RP/15

RP = √3*15/3 = 5√3

3 0
3 years ago
Solve for x and select your answer from the multiple choices.​
Alchen [17]

Answer:

x=3

Step-by-step explanation:

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3 0
3 years ago
Read 2 more answers
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Good evening

Answer:

<h2>39</h2><h2 />

Step-by-step explanation:

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:)

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3 years ago
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Ierofanga [76]
Ur answer is 81.42857142857143
Have a good day hope this helps! :)
4 0
2 years ago
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