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1 year ago

A book store is hosting a special night in which families can enjoy a story and craft time. Tickets to the

Mathematics

2 answers:

Arturiano [62]1 year ago

7 0

Answer:

75 total tickets

Step-by-step explanation:

METHOD 1:

We know that 45 children's tickets have been sold, being 60% of the total tickets having been sold.

So, basically, we solve for x:

We have, 60% × x = 45

or, 60/100 × x = 45

Multiplying both sides by 100 and dividing both sides by 60,

we have x = 45 × 100/60

x = 75

If using calculator, enter 45x100/60, which will give you the answer.

------------------------

METHOD 2:

Division is the opposite of multiplication

Start with the formula to calculate the percentage of total

y=value÷ percentage/100

Substitute values in the equation

y=45÷60/100

Simplify and solve

y=45÷0.6

y=75

Both methods give you 75, therefore 75 tickets have been sold

nataly862011 [7]1 year ago

4 0

So your supposed to do 1.50/1 x 60% which is 90

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Answer:

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Step-by-step explanation:

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2 years ago

Read the problem and answer the questions show your solution when necessary.

Alexandra [31]

Answer:

Step-by-step explanation:

1) Number of white chocolate bars = x

Number of dark chocolate bars = y

Total bars = 15

x + y = 15 --------------(I)

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20x + 25y = 340 ----------------(II)

2) We can use elimination method to solve this equations.

Multiply equation (I) by (-20) and then add the equations.

(I)* (-20) -20x -20y = - 300

(II) <u>20x + 25y = 340 </u> {Now add and x will be eliminated}

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y = 40/5

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2 years ago

Angle sum theory find Y

kompoz [17]

<h3>Answer:</h3>

<h3>Step-by-step explanation:</h3>

The angle sum theory says that the sum of all the interior angles in a triangle is 180 degrees.

Finding X

To solve for y, we must first find x. This way we know 2 of the interior angles. Luckily, angle x is a part of a linear pair.

Linear Pairs are 2 adjacent angles that create a straight line together. This means that the sum to 180 degrees.

Angle x and the angle with a measurement of 115 form a linear pair. Thus, we can create an equation to find x.

115 + x = 180

By subtracting 115 from both sides we know that x = 65.

Solving for Y

Now that we know x, we can find y. We know that one of the interior angles is 65 and that the other is 90 degrees. The square marking the bottom angles in the middle show that they are right angles.

Right angles are usuaslly denoted with a square drawn in the angle and have a measurement of 90 degrees.

Lastly, we can create a formula to find y with the angle sum theory.

90 + 65 + y = 180

Combine like terms

155 + y = 180

Subtract 155 from both sides

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This means that the angle y is 25 degrees.

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1 year ago

Add 6 5/6 + ( -6 1/5 )

Rudiy27

Answer:

0.63

Step-by-step explanation:

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2 years ago

Read 2 more answers

Explain how to solve 5^(x − 2) = 8 using the change of base formula log base b of y equals log y over log b.

Ray Of Light [21]

Answer:

x = 3.3

Step-by-step explanation:

A equation is given to us and we need to solve out for x. The given equation is ,

Take log on both sides with base as " 10" . We have ,

Simplify using the property of log , , we have ,

Simplify ,

Again simplify using the property of log ,

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Simplify the RHS ,

Add 2 both sides ,

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2 years ago