MATHEMATICS MIDDLE SCHOOL

Luis made 80% of what he made last week.If he made 72$ this week,how much did he make last week

Answers

Answer 1

Answer:

Let

x--------> the amount in dollars that Luis make last week

we know that

$80\% =(80)/(100)=0.80$

$0.80x=72\$$ ------> equation that represent the situation

solve for x

Divide by $0.80$ both sides

$0.80x/0.80=72\$/0.80$

$x=72\$/0.80$

$x=90\$$

therefore

the answer is

$90\$$

Answer 2

Answer:

Answer:

He made $90 last week

Step-by-step explanation:

Since we are told that Louis made 80% of what he made last week and since Louise made $72 this week, to get how much he made this week, we will follow the step below:

let x be the amount he made last week

80% of x = $72

80% × x = $72

$(80x)/(100)$ = $72

the fraction 80x/100 can be reduced to 4x/5. Hence;

$(4x)/(5)$ = $72

Multiply both-side of the equation by 5

$(4x)/(5)$ x 5 = $72 x 5

4x =360

Divide both-side of the equation by 4 to get the value of x

$(4x)/(4) = (360)/(4)$

On the left-hand side of the equation 4 will cancel-out 4 while on the right-hand side of the equation 360 will be divided by 4

x = $90

Therefore he made $90 last week

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Evaluate the expression 15 - n when n = 9

Answers

To do this, you simply need to substitute in 9 for n in the expression.

15 - n
= 15 - (9)
= 6

Hope this helps! :)

$15-n \hbox{ when } n=9 \n15-n=15-9=\boxed{6}$

Which of the angels in the picture are vertical angles

Answers

Answer:

angles 2 and 3 are vertical angles

this is because they are opposing sides of the vertex while also congruent in size

Answer:

Angles 2 and 3

Step-by-step explanation:

What's a reduce fraction of 51/75 in simplest form

Answers

17/25 is a reduce fraction of 51/75

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Adams puts 3/4 of a bag of pens in 3 boxes. If he opens the boxes one by one, how many pens will be in each box

Answers

The number of pens in each bag if Adams puts 3/4 of a bag of pens in 3 boxes is $(1)/(4)$ of a bag.

Given that:

Adams puts a fraction of $(3)/(4)$ of a bag of pens in 3 boxes.

It is required to find the number of pens in each box.

Total number of a fraction of pens available = $(3)/(4)$ of a bag

These pens are equally distributed among 3 boxes.

So, each box will have an equal number of pens.

So, the number of pens in each box is:

$n=(3)/(4) /3$

Take the reciprocal of the second number and the operation becomes multiplication.

$n=(3)/(4) *(1)/(3)$

$=(1)/(4)$

Hence, the number of pens in each box is $(1)/(4)$ of a bag.

Learn more about Fractions here :

brainly.com/question/28290650

#SPJ5

You need more information for this question... such as how much pens were in the bag

4 gallons of low-fat milk cost $13.80 find the cost of 6 gallons of low-fat milk

Answers

Divide $13.80 by 4, then multiply by 6 to get $20.70

Answer:

20.70

Step-by-step explanation:

13.80 divided by 4 and then mutiply by 6 and you will get 20.70

Identify the independent and dependent variable:The equation t=12p+12 gives the total cost t (in dollars) of a meal with a tip of p percent (in decimal form)