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trasher [3.6K]
3 years ago
8

find the constant rate of change between the two quantity is shown in each graph explain your reasoning

Mathematics
1 answer:
Tom [10]3 years ago
3 0

The rate is that the temperature is decreasing 20 degrees per 10 hours.

This can be reduced to decreasing 2 degrees per hour.

This written out as a number is -2 deg/h

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Select all of the linear equations that are in standard form. Group of answer choices 15x-14y=22 3x+5y=7 2.5x-y=17 -2x+8y=14 42x
n200080 [17]

Answer: 15x-14y=22

3x+5y=7

2.5x-y=17

42x+0.4y=15

Step-by-step explanation:

The standard linear equation of two variables x and y is given by :-

Ax +By = C , where A is a positive integers,  and B, and C are integers.

Therefore, from the given options the linear equations that are in standard form are

15x-14y=22

3x+5y=7

2.5x-y=17

42x+0.4y=15

[-2x+8y=14 is not in standard form ∵ -2 is a negative integer.]

7 0
3 years ago
Please write an addition statement that is equivalent to 49 ÷ -7
Zanzabum

Answer:

84 ÷ -12 = -7

21 ÷ -3 = -7

Step-by-step explanation:

49 ÷ -7 = -7

Means that __ ÷ __ must equal -7

There are many options, here are a few:

84 ÷ -12 = -7

or -84 ÷ 12 = -7

21 ÷ -3 = -7 etc

5 0
3 years ago
You bought one skirt at $18.27, two shirts at $15.78, and a pair of shoes at $34.50. if the tax rate is 7%, what is the total co
Ludmilka [50]
I believe the answer to that problem would be $68.55, since you have to add them together and then multiply them by .07 for the percentage. 
6 0
3 years ago
The shape of the solution region for the system (picture) can be described as which of the following? Select all that apply.
grandymaker [24]
We have 
x>=-2
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y>=-1
y<=4

using a graph tool
see the attached figure

the solution is the figure of a rectangle <span>limited by points
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the answer is 
a rectangle
a parallelogram (
rectangles<span> are subsets belonging to the set of </span><span>parallelograms)</span>

5 0
3 years ago
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IrinaVladis [17]
The answer would be 13x+6.
(7x+14)+(6x-8)
Combine like terms to get 13x+6
4 0
4 years ago
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