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Kipish [7]
3 years ago
8

Which equation represents “fifteen more than r is sixty-one?”

Mathematics
2 answers:
Rashid [163]3 years ago
6 0

Answer:

15 + r = 61.

Step-by-step explanation:

61 - 15 = 46.

Therefore,

r=46.

Margaret [11]3 years ago
4 0

Answer:

r + 15 = 61

Step-by-step explanation:

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2 times the quantity of y and 7
tiny-mole [99]

Answer:

2y = 7

then

y =3.5

Step-by-step explanation:

plzzzz..

mark it as a brilliant answer

3 0
3 years ago
What is 6% of 20? Please answer as soon as possible.
Gekata [30.6K]
TO get 6% of 20 we have to write 6% in decimal (or fraction if u want but decimal allows u to multiply it easier i think)
6%=0.06=\frac{6}{100}
Now u have to mulitply 0.06 times 20
0.06*20=1.2 - its the result
3 0
3 years ago
A ladder 20 feet long is leaning against the wall of a house. The base of the ladder is pulled away from the wall at a rate of 2
alukav5142 [94]

Answer:

0.17 °/s

Step-by-step explanation:

Since the ladder is leaning against the wall and has a length, L and is at a distance, D from the wall. If θ is the angle between the ladder and the wall, then sinθ = D/L.

We differentiate the above expression with respect to time to have

dsinθ/dt = d(D/L)/dt

cosθdθ/dt = (1/L)dD/dt

dθ/dt = (1/Lcosθ)dD/dt where dD/dt = rate at which the ladder is being pulled away from the wall = 2 ft/s and dθ/dt = rate at which angle between wall and ladder is increasing.

We now find dθ/dt when D = 16 ft, dD/dt = + 2 ft/s, and L = 20 ft

We know from trigonometric ratios, sin²θ + cos²θ = 1. So, cosθ = √(1 - sin²θ) = √[1 - (D/L)²]

dθ/dt = (1/Lcosθ)dD/dt

dθ/dt = (1/L√[1 - (D/L)²])dD/dt

dθ/dt = (1/√[L² - D²])dD/dt

Substituting the values of the variables, we have

dθ/dt = (1/√[20² - 16²]) 2 ft/s

dθ/dt = (1/√[400 - 256]) 2 ft/s

dθ/dt = (1/√144) 2 ft/s

dθ/dt = (1/12) 2 ft/s

dθ/dt = 1/6 °/s

dθ/dt = 0.17 °/s

8 0
3 years ago
What describes a statistical sample?
marshall27 [118]

Answer:

Statistical sampling is drawing a set of observations randomly from a population distribution. ... By repeating the sampling operation a large number of times, perhaps 1000, we decrease the sampling error and increase the quality of the estimates.

3 0
2 years ago
Read 2 more answers
The work of a student to solve the equation 4(2x − 4) = 8 + 2x + 8 is shown below:
Contact [7]
Step 2...first error...when distributing through the parenthesis, u multiply, not add.

4(2x - 4) = 8 + 2x + 8 =
8x - 16 = 16 + 2x <== correction

5 0
3 years ago
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