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Nezavi [6.7K]
2 years ago
14

Sarah made a certain number of bracelets for a craft show. Maria made 7 more than Sarah. Julie made 3 times as many as Maria.

Mathematics
2 answers:
IceJOKER [234]2 years ago
8 0
The answer is Option 4: 3(s+7)
vazorg [7]2 years ago
6 0

Answer:

The person above is correct  (sorry)

Step-by-step explanation:

EDGE 2021

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A recommendation for wheelchair ramps is that the rise-to-run ratio be no greater than 1:12. This ensures that the ramps are nav
patriot [66]

Answer:

a. 12 feet b. 12 feet 0.5 inches c. 8.33 %

Step-by-step explanation:

a. How far out horizontally on the ground will it protrude from the building?

Since the rise to run ratio is 1:12 and the building is 12 inches off the ground, let x be the horizontal distance the ramp protrudes.

So, by ratios rise/run = 1/12 = 12/x

1/12 = 12/x

x = 12 × 12

x = 144 inches

Since 12 inches = 1 foot, 144 inches = 144 × 1 inch = 144 × 1 foot/12 inches = 12 feet

b. How long should the ramp be?

The length of the ramp, L is gotten from Pythagoras' theorem since the ramp is a right-angled triangle with sides 12 inches and 144 inches respectively.

So, L = √(12² + 144²)

= √[12² + (12² × 12²)]

= 12√(1 + 144)

= 12√145

= 12 × 12.042

= 144.5 inches

Since 12 inches = 1 foot, 144.5 inches = 144 × 1 inch + 0.5 inches = 144 × 1 foot/12 inches + 0.5 inches = 12 feet 0.5 inches

c. What percent grade is the ramp?

The percentage grade of the ramp = rise/run × 100 %

= 12 inches/144 inches × 100 %

= 1/12 × 100 %

= 0.0833 × 100 %

= 8.33 %

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2 years ago
Is 1,2,3,4 a geometric sequence ?
Bad White [126]
No. It would be a arithmetic sequence
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3 years ago
How many solutions does the system have?
Ipatiy [6.2K]
It’s has NO SOLUTION.
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If y varies inversely as x and y = 4 when x = 12, find the constant of variation
Artyom0805 [142]
X is not equal to the answer so y is incorrect
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Help plz:))) I’ll mark u brainliest <br> ASAP!!!
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Answer:

120

Step-by-step explanation:

solve for x then substitute

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2 years ago
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