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Cloud [144]
2 years ago
9

Work out

absmiddle" class="latex-formula"> of 80
Mathematics
2 answers:
NNADVOKAT [17]2 years ago
7 0

Answer:

Here we will explain how to calculate one half of 80.

One half of 80 is simply one half times 80, which can be written as follows:

One/half x 80

Furthermore, you can convert "one" to "1" and "half" to "2" and then the equation and answer is:

1/2 x 80 = 40.00

Step-by-step explanation:

oee [108]2 years ago
5 0

Hey there!

In order to find 1/5 of 80, we can just multiply 80 times 1/5:

\bold{\displaystyle\frac{1}{5} *80}

80 can be written as follows:

\bold{\displaystyle\frac{1}{5} *\frac{80}{1}}

In order to multiply fractions, just multiply the top of one fraction times the top of the other fraction; same with the bottom (also called the denominator)

\bold{\displaystyle\frac{80}{5}}

Guess what? Now we can use mental maths to solve it :)

Hence, the answer is

\boxed{\boxed{\bold{16}}}

Hope everything is clear.

Let me know if you have any questions!

#ILoveLearning

:-)

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A dinner at a restaurant was advertised at $60 plus 18% tax. The TOTAL bill for this dinner was??​
Arlecino [84]

Answer: $70.80

Step-by-step explanation:

60*0.18

10.8

60+10.8

$70.80

7 0
3 years ago
Read 2 more answers
Someone can help me for all the question ?
Dvinal [7]

Answer:

1. 5

2. 3 adult tickets; 2 child tickets

3. See below

Step-by-step explanation:

1.

2 adult tickets cost 2 × $12 = $24

Subtract $24 from $64:

$64 - $24 = $40

Divide $40 by $8:

$40 ÷ $8 = 5

Answer: 5 child tickets

2.

x = number of adult tickets

y = number of child tickets

The total number of tickets is 5, so the first equation is:

x + y = 5

The cost of x adult tickets is 12x. The cost of y child tickets is 8y. The total cost is 12x + 8y. We are told the total cost is $52. The second equation is:

12x + 8y = 52

The system of equation is:

x + y = 5

12x + 8y = 52

Let's solve it by substitution.

Solve the first equation for x.

x = 5 - y

Now we substitute x in the second equation by 5 - y.

12(5 - y) + 8y = 52

Distribute:

60 - 12y + 8y = 52

Combine like terms on the left side:

-4y + 60 = 52

Subtract 60 from both sides:

-4y = -8

Divide both sides by 4.

y = 2

Substitute y = 2 in the first original equation and solve for x.

x + y = 5

x + 2 = 5

x = 3

Answer: 3 adult tickets; 2 child tickets

3.

The customer's claim is incorrect. His sum is $71. 71 is an odd number. Since all ticket prices are even numbers, it is impossible to add only even numbers and get an odd sum. A sum of several amounts of 12 and several amounts of 8 can never equal 71.

We can also show his claim is false using a system of equations.

x + y = 7

12x + 8y = 71

Use substitution.

x = 7 - y

12(7 - y) + 8y = 71

84 - 12y + 8y = 71

84 - 4y = 71

-4y = -13

y = 3.25

This means 3.25 child tickets. The problem states that tickets can be purchased only in whole numbers, so 3.25 tickets cannot be purchased, so the customer's claim is false.

4 0
2 years ago
PLEASE HELP GUYS/GIRLS
den301095 [7]

Answer:

3

Step-by-step explanation:

7 0
3 years ago
HELP PLS PLS I BEG U GEOMETRY AREA OF SECTOR
MAVERICK [17]

Answer:

The area of shaded sector

Formula A = (θ / 360°) × πr²

θ=360°-140°=220°

r=18yd

We have A=(220/360)×3.14×(18)²

=621.72yd²

Area of sector is621.72yd².

6 0
3 years ago
Read 2 more answers
Answer this correctly please BRAINLIEST+HEART+5 STARS ko yung matinong answer
Ann [662]

Applying the triangle inequality theorem and the exterior angle theorem, we have:

1. m∠1 > m∠3

2. MI > IX

3. 3 < MX < 27

4. m∠4 = 115°

<h3>What is the Triangle Inequality Theorem?</h3>

The triangle inequality theorem states that the sum of any two sides of a triangle must be greater than the third side of that triangle.

<h3>What is the Relationship of Sides to Interior Angles in a Triangle?</h3>

The longest side is opposite to the largest interior angle while the shortest side of the triangle is always directly opposite the shortest interior angle in that triangle.

<h3>What is the Exterior Angle Theorem?</h3>

The exterior angle theorem states that the sum of the opposite angles to an exterior angle in a triangle equals the measure of that exterior angle.

1. The angles of a triangle are relative to the length of their opposite sides. Therefore, if MI which is relative to ∠1 is 15 and IX which is relative to ∠3 is 12, it implies that m∠1 is greater than m∠3.

2. Given, m∠1 = 65° and is relative to side MI, and m∠3 = 50° and is relative to side IX, therefore, side MI is longer or greater than side IX.

3. Given, MI = 15; IX = 12, based on the triangle inequality theorem, the measure of MX would be determined as shown below:

15 - 12 < MX < 15 + 12

3 < MX < 27

4. Given, m∠2 = 65°; m∠3 = 50°. Based on the exterior angle theorem, we have:

m∠4 = m∠2 + m∠3

Substitute

m∠4 = 65 + 50

m∠4 = 115°

Learn more about the triangle inequality theorem on:

brainly.com/question/309896

#SPJ1

5 0
2 years ago
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