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KiRa [710]
3 years ago
6

3 x A = 30 + 30 it’s a 3rd grade problem but don’t know the answer

Mathematics
1 answer:
xenn [34]3 years ago
8 0

Answer: A=20

Step-by-step explanation:

3×A=30+30............eqn 1

3A=60

A=60/3

A=20

Substitute A=20 into equation 1

3x20= 30+30

You might be interested in
A clothing manufacturer produced 900 items with flaws. Each flawed item represented a loss of $12.50. Which expression represent
OverLord2011 [107]
A
900 a piece
negative 12.50 because it's a loss of money
7 0
3 years ago
Roger claims that the two statistics most likely to change greatly when an outlier is added to a small data set are the mean and
Leni [432]

Answer:

No, the Roger’s claim is not correct.

Step-by-step explanation:

We are given that Roger claims that the two statistics most likely to change greatly when an outlier is added to a small data set are the mean and the median.

This statement by Roger is incorrect because the median is unaffected by the outlier value and only the mean value gets affected by the outlier value.

As the median represents the middlemost value of our dataset, so any value which is an outlier will be either at the start or at the end will not the median value. So, the median will not likely change when an outlier is added to a small data set.

Now, the mean is the average of all the data set values, that is the sum of all the observations divided by the number of observations. The mean will get affected by the outlier value because it take into account each and every value of the data set.

Hence, the mean will likely to change greatly when an outlier is added to a small data set.

7 0
4 years ago
A rectangle has a height of 777 and a width of 2x^2-32x
Murljashka [212]
<h2>Explanation:</h2><h2></h2>

Hello! Remember you have to write clear questions in order to get good and exact answers. Here I'll assume the data given in a comment above. So:

H:height \\ \\ W:Width \\ \\ \\ H=7 \\ \\ W= 2x^2-32x+2

We know that the area (A) of any rectangle is given by:

A=H\times W \\ \\ A=7(2x^2-32x+2) \\ \\ \\ Expanding: \\ \\ A=(7)(2x^2)-(7)(32x)+(7)(2) \\ \\  \boxed{A=14x^2-224x+14}

8 0
4 years ago
A 4-ft-high and 7-ft-wide rectangular plate is submerged vertically in water so that the top is 1 ft below the surface. Express
Readme [11.4K]

Total depth of the bottom of the plate is 4 + 1 = 5

Force = limit(5,1) 62.5 *7* x * dx

= 437.5. Lim(5,1) x*dx

= 437.5(x^2/2)^5 , 1

= 437.5 x (5^2/2 - 1/2)

= 437.5 x 12

= 5,250 pounds

6 0
4 years ago
If you do this ill give you a bunch of points please!!!!!!!
Zarrin [17]

a)

(59, 76) and (65, 100)

y - y1 = m(x - x1)

y - 100 = (100-76)/(65 - 59)(x - 65)

y - 100 = (24/6)(x - 65)

y - 100 = 4(x - 65)

y - 100 = 4x - 260

y = 4x - 160

b)

x = 90

y = 4x - 160

y = 4(90) - 160

y = 360 - 160

y = 200

200 chirps per minute

c)

y = 120

y = 4x - 160

120 = 4x - 160

280 = 4x

x = 70

70 degrees


5 0
3 years ago
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