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Digiron [165]
2 years ago
13

I need help with these questions

Mathematics
1 answer:
natali 33 [55]2 years ago
3 0

Answer: 1/3 = 33.3% or 33 ⅓%

1/9 = 11.1%

2/9 = 22.2%

8/9 = 88.9%

Step-by-step explanation:

Divide the numerator by the denominator. Multiply the quotient by 100 to change the decimal to a percentage.

All of these are repeating decimals, so it may be required to keep at least one decimal place in the percentage, depending on how precise the calculation must be.

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You have 800 quarter-inch-long beads. if you use them all to make 16 bracelets, what will be the rate of beads per bracelet
Murljashka [212]
50 bead per bracelet 
5 0
3 years ago
A triangle has two sides that measure
mr_godi [17]

Answer:

D,12cm

Step-by-step explanation:

100 percent/TRUST

3 0
3 years ago
An engineer is designing a fountain that shoots out drops of water. The nozzle from which the water is launched is 3 meters abov
Hoochie [10]

Answer:

After 3 seconds

Step-by-step explanation:

Given

h(t) = -5t^2 + 14t + 3

Required

Time the drop will hit the ground

When the drop hits the ground,

h(t) = 0

So, we have:

0 = -5t^2 + 14t + 3

Rewrite as:

5t^2 - 14t - 3 = 0

Expand

5t^2 + t - 15t - 3 = 0

Factorize

t(5t + 1) -3(5t + 1) = 0

Factor out 5t + 1

(t -3)(5t + 1) = 0

Split

t -3 = 0 or 5t + 1 = 0

Solve for t

t = 3 or 5t = -1

Time cannot be negative.

So:

t = 3

5 0
3 years ago
Determine the type of correlation that exists in the given data set. Age (years) 23 45 39 74 63 52 59 28 35 11 26 49 IQ 76 82 11
Lyrx [107]

Answer:

B -0.104

Step-by-step explanation:

Step 1: Write the formula for correlation

r =    total xy

√Total x² x Total y²

Step 2: Make a table to calculate all values

Table is attached in the picture below

Step 3 : Solve

Mean of X = Total X/ Total number of X

                  = 507/12

                  = 106.33

Mean of Y = Total Y/ Total number of Y

                  = 1276/ 12  

                  = 42.25

r =    total xy

√Total x² x Total y²

r = -352.05/ √3656.25 x 3122.66698

r = -0.104

-0.104 is negative

This negative correlation means there is an inverse correlation between variables.

6 0
3 years ago
Read 2 more answers
Ava, Grace, Jayden, and Zoe together stacked a total of 50 brownies on a tray. Ava stacked 0.14 of the brownies, Grace stacked 4
OLEGan [10]

1. Zoe stacked the most brownies. She stacked 27 brownies out of the 50 brownies.

2. 15

3. 43 + 3n ≥ 70, so n ≥ 9

4. D. 58x + 13 + 58y

5. The answer would be ≤4

6. 9.94 + 10.01p ≤ 70, so p ≤ 6

7. C 40 89

8.  D. x+(x+5)=77

Hope I helped you! Please consider marking my answer the brainliest :)

4 0
3 years ago
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