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sineoko [7]
3 years ago
5

The equation y = 1.9 x can be used to determine the total weight in pounds, y, of the number of paperback books in the first pri

nting of Zamir’s novel, x. The equation was used to fill in the table below.
Weight of Books
Number of Books
Total Weight (in pounds)
100
190
150

200
380
250
475

What value is missing from the table?

lbs.
Mathematics
2 answers:
kari74 [83]3 years ago
8 0
I think it’s 180!!!!!!!!!!
andrew11 [14]3 years ago
4 0

Answer: The correct anwsr is 180

Step-by-step explanation:

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The temperature inside a certain industrial machine at time t seconds after startup, for 0 < t < 10, is given by h(t) = 42
frutty [35]

Answer:

t= \frac{125}{38} s

Step-by-step explanation:

We are given the temperature inside the machine from startup until 10 seconds later, the formula is:

h(t)= 42 \cdot t +1 - 4\cdot t +2  (degrees \, C)

We want to know at what time t the temperature inside the machine will be equal to 128 °C.

So we set:

h(t)=128

42\cdot t+1-4\cdot t+2=128

Now, we rearrange the equation to keep terms with t on the left hand side and terms without t on the right hand side

42\cdot t-4\cdot t=128-1-2

and we simplify:

(42-4)\cdot t= 128-2-1= 125

38 \cdot t = 125

now it's easy to solve for t:

t=\frac{125}{38}

And thus we arrive to the solution.

5 0
3 years ago
Which angles form a linear pair?
Igoryamba

A linear pair of angles has a common side, and the vertex is on the line designated by the points denoting the non-common sides.

Consider the first choice:

... the common sided is RL, and the other two points are P and M. Point R (the vertex of the angles) is not on line PM. (In fact, line PM is not shown on the diagram.)

In the second choice, the given angles do not have a common side. (They are actually "vertical" angles.)

In the 3rd choice, the common side is RN, and vertex point R is found on line MO. These angles <em>are</em> a linear pair:

... - MRN and NRO

8 0
4 years ago
Read 2 more answers
If x=2y+1 what is th e value of 10y-5x
gregori [183]

x=2y+1

what is 10y-5x?

all you gotta do is substitute the value of x in the equation:

x=2y+1\\10y-5(2y+1)

now solve for y:

10y-5(2y+1)\\10y-10y-5=-5

so the value of 10y-5x = \boxed{-5}

4 0
3 years ago
Bradley had 25 baseball cards in his collection. He receives x number of baseball cards for his birthday.
Savatey [412]

Answer:

25 + x = y

Step-by-step explanation:

He gets x(unknown amount of cards) so add that, and the total will equal y.

7 0
3 years ago
Slope of line that passes through (9,3) and (2,2)
neonofarm [45]

Answer:

1/7

Step-by-step explanation:

slope format

2-3/2-9

-1/-7

1/7

6 0
4 years ago
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