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3 years ago

Will it be acceptable to write R285 456 in south afrika EXPLAIN

Mathematics

1 answer:

Natasha2012 [34]3 years ago

7 0

Answer:

Society of the world to make this year the best ever friend a person could hope for a good friend of mine and her family is a great place to work and to be able to enjoy the world of

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Divide 12.73 by 8 and round off correct to two decimal places

n200080 [17]

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Step-by-step explanation:

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3 years ago

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a recipe calls for 6 cups water and 4 cups of flour if the recipe is increased how many cups of water should be used with 6 cups

ololo11 [35]

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3 years ago

7x-2y=16 11x+6y=32.3<br>how to solve this math problem

Aneli [31]

Answer:

Step-by-step explanation:

These types of equations are called simultaneous equations and the method we can use to solve these type of equations is either Substitution, Elimination and Graphing.

We use substitution here because it is easier.

Equation 1

$7x-2y=16$

Equation 2

$11x+6y=32.3$

Lets take equation 1

$7x-2y=16\\7x=16+2y\\x=\frac{16+2y}{7}$

This is our equation 3 , now put it inside equation 2.

$11x+6y=32.3\\11(\frac{16+2y}{7} )+6y=32.3\\\frac{176+22y}{7} +6y=32.3\\\frac{176+22y+42y}{7}=32.3\\176+22y+42y=226.1 \\\\42y+22y=226.1-176\\64y=50.1\\y=\frac{50.1}{64} \\y=0.783\\$

We found the value of y , now to find the value of x insert the value of y in equation 3

$x=\frac{16+2y}{7}\\x=\frac{16+2(0.783)}{7} \\x=\frac{16+1.566}{7}\\x=\frac{17.566}{7}\\x=2.509$

Solved ! See the attached image on both the straight line graphs i have attached for better understanding. Where both the lines intersect each other is our value of (x , y) respectively.

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2 years ago

A line has this equation: y = -2x-5 Write an equation for the parallel line that goes through (-3,-5).

zhuklara [117]

Answer:

Step-by-step explanation:

y + 5 = -2(x + 3)

y + 5 = -2x - 6

y = -2x - 11

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3 years ago

Find the value of x and then classify the triangles

ZanzabumX [31]

6. x = 16; it's a scalene triangle

7. x = 45; it's a right triangle.

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2 years ago

Will it be acceptable to write R285 456 in south afrika EXPLAIN​

Will it be acceptable to write R285 456 in south afrika EXPLAIN