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Serjik [45]
3 years ago
15

a materials scientist has 56 pounds of a liquid. she uses most of the liquid to fill 7 beakers. The remaining liquid fill 1/9 of

an 8th beaker. How many ponds of liquid is in one full beaker
Mathematics
1 answer:
adelina 88 [10]3 years ago
7 0

Answer:

7.875 pounds

Step-by-step explanation:

Assuming the beakers are the same size, and each beaker takes in x pounds.

Then for seven beakers we have;

x × 7 = 7x pounds

For the eight beaker;

1/9 ×  x= 1/9x pounds

Therefore;

7x + 1/9x = 56 pounds

63x + x = 56 ×9

64 x = 504

     x = 504/64

         = 7.875 pounds

Therefore; one full beaker takes in 7.875 pounds when full

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How can you tell if the expression 7x-4 and 6x-4-x are equivalent
olga_2 [115]

Answer:

see below

Step-by-step explanation:

7x-4          6x-4-x

Combine like terms on the second expression

7x -4          6x -x -4

                 5x -4

These are not equivalent  expressions

7x -4  does not equal 5x-4

8 0
3 years ago
What is the slope of the line passing through the points
Bingel [31]

Hello!

Answer:

\boxed{2}

Step-by-step explanation:

Slope=\frac{Y_2-Y_1}{X_2-X_1}=\frac{RISE}{RUN}

\frac{1-(-5)}{4-1}=\frac{6}{3}=2

Therefore, the slope is 2, which is our final answer.

Hope this helps!

Have a nice day! :)

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Thank you!

6 0
3 years ago
2x2-1/3x2+7/3x2 plzzzzzzzzzzzz fast​
Eva8 [605]

Answer:

8

Step-by-step explanation:

8 is the correct answer

3 0
3 years ago
Read 2 more answers
If f(x) = x2 – 2x and g(x) = 6x + 4, for which value of x does (f + g)(x) = 0?
Angelina_Jolie [31]

Answer:

x = - 2

Step-by-step explanation:

f(x) + g(x) = x² - 2x + 6x + 4 = x² + 4x + 4, hence

x² + 4x + 4 = 0 ← This is a perfect square in the form

(x + a)² = x² + 2ax + a²

Hence 2a = 4 ⇒ a = 2, thus

(x + 2)² = 0

x+ 2 = 0 ⇒ x = - 2 ( 2 equal roots )

Value of x = - 2

3 0
3 years ago
Read 2 more answers
Ian and Danny work for a construction company. The table shows their daily wages (in dollars) for a week picked randomly from th
Crank

Answer:

a) Mean

b)  Ian earned higher wages than Danny during the days listed

Step-by-step explanation:

Ian and Danny work for a construction company. The table shows their daily wages (in dollars) for a week picked randomly from the calendar year. Ians Wages ()DannysWages() 96 153 120 89 114 91 111 96 106 129 123 94 110 99 The best way to compare Ians and Danny's wages is by using the ______ as the measure of center. Comparing this measure of center of the two data sets indicates that ______ generally earned higher wages during the days listed.

a) The mean also known as average is one of the most common used measure of center of the data. To calculate the mean, you sum all the data and then divide the total sum by the total number of data values.

b) For Ian's wages, the mean (μ) is calculated as:

\mu=\frac{96+120+114+111+106+123+110}{7}=111.43

The mean of Ians wages is $111.43

For Danny's wages, the mean (μ) is calculated as:

\mu=\frac{153+89+91+96+129+94+99}{7}=107.29

The mean of Danny's wages is $107.29

From the two data sets, Ian earned higher wages than Danny during the days listed

5 0
3 years ago
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