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kykrilka [37]
3 years ago
14

Please help me with these two problems thank you!!​

Mathematics
1 answer:
andriy [413]3 years ago
8 0

Answer:

1st question: y=1/3x-1

2nd question: y=-2/3x+9

Step-by-step explanation:

Y=mx+b form is what you are using

when a line in parallel to a line they have the same slop wich is m

when a line in perpendicular they have the opposite reciprocal

Examples: 2/5 opposite reciprocal would be -5/2

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It takes 10 minutes to fill a 60-gallon bathing pool. What is the average rate in gallons per hour
Lerok [7]
3,600 gallons per hour because there is 60 minutes in an hour and you started with 10 minutes so you multiply 60 by 60.
6 0
3 years ago
The middle school dance team had 2 separate car washes on Saturday to raise money for new uniforms. The Main Street location rai
rosijanka [135]

Answer:

$465 at Back Street

$515 at Main Street

Step-by-step explanation:

980 (total) - 50 (the difference between the two) = 930

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465 + 50 (the difference) = 515 ( main street)

CHECK: 465 + 515 = 980

6 0
3 years ago
An open rectangular box is 4 feet long and has a surface area of 20 square feet. Find the dimensions of the box for which the vo
sweet-ann [11.9K]
SA=2H(L+W)+LW for open box
20=2H(4+W)+4(W)
distribute
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divide both sides by 2
10=4H+WH+2W
solve for 1 variable, pick W
10-4H=WH+2W
10-4H=W(H+2)
(10-4H)/(H+2)=W

V=LWH
subsitute 4 for V, subsitute H for H and (10-4H)/(H+2) for W
V=(4)(H)(10-4H)/(H+2)
V=(40H-16H²)/(H+2)
find max value
take deritivitive of this thing
V'=-16(H²+4H-5)/((H+2)²)
using sign chart
sign changes from positive to negative at H=1

so at H=1
find W

W=(10-4H)/(H+2)
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the dimeionts are

length=4ft
width=2ft
height=1ft
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3 0
3 years ago
avery prepares 2 equal size oranges for the bats at the zoo. one dish has 3/8 of an orange. Another dish has 2/8 of an orange. w
Lapatulllka [165]

Answer:

3/8

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it is greater than 2/8

6 0
3 years ago
The volume of 10
Alona [7]
Hello!

1 floz divided by 100 = 0.01
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8 0
3 years ago
Read 2 more answers
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