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spin [16.1K]
3 years ago
9

How do you evaluate this expression

Mathematics
1 answer:
jarptica [38.1K]3 years ago
7 0

Answer:

= 3

Step-by-step explanation:

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Whats is 2 over 3 minus 1 over 2 equal
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2/3 - 1/2 would equal 1/6.
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Test due in 3 minutes please help.
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Step-by-step explanation:

3 0
3 years ago
The graph shows two lines, A and B.
EastWind [94]

Answer:


Part A: one solution:

Part B: x = 3, y = 4.


Explanation:


1) Part A: how many solutions does the pair of equations for lines A and B have?


The solution of a system of equations in a graph is given by the intersetion of the curves that represent the equations.


In this case, there are two straight lines, which intersect in one and only one point.


Hence, the system has one solution.


2) Part B: what is the solution to the equations of lines A and B?


The solution is the pair of coordinates of the intersection point. It is (3, 4).


Therefore, the solution is x = 3, y = 4.

8 0
3 years ago
Read 2 more answers
I need help .........
seraphim [82]

Answer:

Step-by-step explanation:

Lets break each problem down before we answer it so it help to understand what we are looking for.

Vocabulary:

  Unit Rate: how many units of the first type of quantity corresponds to one unit of the second type of quantity. (12 inches to 1 foot)

Unit Rates:

Problem 1: Top left

A boy delivers 189 papers in 3 hours

\frac{189 papers}{3 hours} \\189/3\\\frac{63 papers}{1 hour}

Unit Rate: 63 papers delivered per hour

In simple terms, all we are doing is creating a fraction then simplifying it :)

Problem 2: Top right

It costs $8.40 for 12 cupcakes

\frac{8.40}{12 cupcakes} \\8.40/12\\\frac{0.70}{1 cupcake}

Unit Rate: For every $0.70, it costs one cupcake

Problem 3: Bottom left

5 miles in 50 minutes

\frac{5 miles}{50 minutes} \\5/50\\\frac{1 mile}{10 minutes}

Unit Rate: For every one mile ran, it takes 10 minutes

Problem 4: Bottom right

375 passengers distributed between 5 cars

\frac{375 passengers}{5 cars} \\375/5\\\frac{75 passengers}{1 car}

Unit Rate: For ever 75 passengers, there is one car

Hope this Helps!

6 0
3 years ago
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