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Setler79 [48]
3 years ago
13

. -2x + 9x Simply the expression

Mathematics
2 answers:
Lorico [155]3 years ago
7 0
9x-7x=2x cause 9-2=7
oksano4ka [1.4K]3 years ago
4 0

Answer:

7x

Step-by-step explanation:

9x-2x=7x

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Pls help me either one of find
Verdich [7]

Answer:

the first one for sure.

Step-by-step explanation:

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2 years ago
Please help<br><br>p/5 = 3.1; p=​
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P=15.5 would be the answer
3 0
3 years ago
Read 2 more answers
Does the table show a direct proportional relationship? If so, what is the constant of proportionality?
lesantik [10]

Answer:

C. Yes, 3.5.

Step-by-step explanation:

If there is a relationship of direct proportionality for every ordered pair of the table, then the constant of proportionality must the same for every ordered pair. The constant of proportionality (k) is described by the following expression:

k = \frac{y}{x} (1)

Where:

x - Input.

y - Output.

If we know that (x_{1}, y_{1}) = (13, 45.5), (x_{2}, y_{2}) = (14, 49) and (x_{3}, y_{3}) = (15, 52.5), then the constants of proportionalities of each ordered pair are, respectively:

k_{1} = \frac{y_{1}}{x_{1}}

k_{1} = \frac{45.5}{13}

k_{1} = \frac{7}{2}

k_{2} = \frac{y_2}{x_2}

k_{2} = \frac{49}{14}

k_{2} = \frac{7}{2}

k_{3} = \frac{y_{3}}{x_{3}}

k_{3} = \frac{52.5}{15}

k_{3} = \frac{7}{2}

Since k_{1} = k_{2} = k_{3}, the constant of proportionality is 3.5.

8 0
3 years ago
At the fair, Kate found a strange machine with a sign on it labeled, "Enter a number." When she pushed the
Elanso [62]

Answer:

it reduce the number by 6 mark me brainlist

7 0
3 years ago
How many countries in world
mariarad [96]

Answer:

There are 195 countries in the world today. This total comprises 193 countries that are member states of the United Nations and 2 countries that are non-member observer states: the Holy See and the State of Palestine

Not included in this total count of 195 countries are:

•Taiwan - the United Nations considers it represented by the People's Republic of China

•The Cook Islands and Niue, both states in free association with New Zealand which are members of several UN specialized agencies and have been recognized "full treaty-making capacity", but are neither member states nor non-member observer states.

•Dependencies (or dependent territories, dependent areas, dependencies) and Areas of Special Sovereignty (autonomous territories)  

•Other countries recognized by the United Nations as not being self-governing



8 0
3 years ago
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