Mathematics Middle School

Estou viajando de São Paulo a Porto Alegre, cujo percurso total tem 1600 km, aproximadamente. Se já percorri 80% do percurso, quanto ainda falta (em quilômetros e porcentagem)?


Apresente os cálculos.

Answers

Answer 1

Answer:

Step-by-step explanation:

Related Questions

Referring to the Fig. in Question #19, given FGHI≅WXYZ,
find WX

Answers

Answer:

∠Y= 120

Step-by-step explanation:

The answer is 120 hope this helps

Here's what the problem looks like.

Answers

Answer: It is the first one.

Step-by-step explanation: Give brainliest

A small theater had 6 rows of 27 chairs each. Workers just removed 9 of these chairs. How many chairs are left?

Answers

Answer:

18

Step-by-step explanation:

27 - 9 = 18.

Answer:

153

Step-by-step explanation:

27*6-9=153

Which number line shows the solution to 5 + (−5)?
A number line is shown from negative 10 to 0 to positive 10. There are increments of 2 on either side of the number line. The even numbers are labeled on either side of the number line. An arrow pointing from 0 to negative 5 is shown. Above this, another arrow pointing from negative 5 to negative 10 is shown. A vertical bar is shown at the tip of the arrowhead of the top arrow.
A number line is shown from negative 10 to 0 to positive 10. There are increments of 2 on either side of the number line. The even numbers are labeled on either side of the number line. An arrow pointing from 0 to 5 is shown. Above this, another arrow pointing from 5 to 10 is shown. A vertical bar is shown at the tip of the arrowhead of the top arrow.
A number line is shown from negative 10 to 0 to positive 10. There are increments of 2 on either side of the number line. The even numbers are labeled on either side of the number line. An arrow pointing from 0 to negative 5 is shown. Above this, another arrow pointing from negative 5 to 5 is shown. A vertical bar is shown at the tip of the arrowhead of the top arrow.
A number line is shown from negative 10 to 0 to positive 10. There are increments of 2 on either side of the number line. The even numbers are labeled on either side of the number line. An arrow pointing from 0 to 5 is shown. Above this, another arrow pointing from 5 to 0 is shown. A vertical bar is shown at the tip of the arrowhead of the top arrow.

Answers

Answer:

A number line is shown from negative 10 to 0 to positive 10. There are increments of 2 on either side of the number line. The even numbers are labeled on either side of the number line. An arrow pointing from 0 to 5 is shown. Above this, another arrow pointing from 5 to 0 is shown. A vertical bar is shown at the tip of the arrowhead of the top arrow.

Step-by-step explanation:

The answer is A number line is shown from negative 10 to 0 to positive 10. There are increments of 2 on either side of the number line. The even numbers are labeled on either side of the number line. An arrow pointing from 0 to 5 is shown. Above this, another arrow pointing from 5 to 0 is shown. A vertical bar is shown at the tip of the arrowhead of the top arrow because 5 + (-5) is the same as 5 - 5, which equals 0, which is what the arrow points to in A number line is shown from negative 10 to 0 to positive 10. There are increments of 2 on either side of the number line. The even numbers are labeled on either side of the number line. An arrow pointing from 0 to 5 is shown. Above this, another arrow pointing from 5 to 0 is shown. A vertical bar is shown at the tip of the arrowhead of the top arrow.

Answer:

An arrow pointing from 0 to negative 5 is shown. Above this, another arrow pointing from negative 5 to 5 is shown. A vertical bar is shown at the tip of the arrowhead of the top arrow.

Step-by-step explanation:

This may mean that 5-5=0 and that the negative 5 is arrowed to show the direction 0 to -5 and the 0 to 5 shows the answer.

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

$3.75

Step-by-step explanation:

dimes= x

quarters= x+2

nickels= 2x+2

sum is 3.75

.10x+.25(x+2)+0.05(2x+2)=3.75

.10x+.25x+.50+0.10x+0.10=3.75

0.45x=3.15

x=7 dimes (0.70)

x+2=9 quarters (2.25)

2x+2=16 nickels (0.80)

They add to $3.75

Give the person above me brainliest !!

Answer quick 100 points
Which phrase describes the algebraic expression Three-fourths x + 2?
three-fourths of a number plus two
the quotient of four-thirds and two
the product of three-fourths and two
the difference between three-fourths of a number and two

Answers

Answer:

A) three-fourths of a number plus two

Step-by-step explanation:

To find out what the answer is, we first need to translate the sentence into numbers, which will give us:

[tex]\frac{3}{4}[/tex]x+2

We can see that we are multiplying an unknown number, x, by three fourths, so we know that we are taking three-fourths of a number, and we also know that we are then adding two. We are not dividing or subtracting, so we know it can't be  B or D. We also know that we are multiplying three-fourths by x, not two so we know that it can't be C. So our only option is A, So the correct answer is:

A) three-fourths of a number plus two

Hope this helps, please mark as brianliest

Answer:

Three-fourths of a number plus two

Step-by-step explanation:

The value "x" is  used in algebra to mean a value that is not yet known.

Remember the algebraic expression is: 3/4x + 2

Lets break each possible answer down,

1. The quotient of four-thirds and two is:  4/3 ÷ 2

2. The product of three-fourths and two is:  3/4 * 2

3. The difference between three-fourths of a number and two is:

3/4x - 2

None of these expressions match 3/4x + 2, which brings us to the last answer.

4. Three-fourths of a number plus two is:  3/4x + 2

Notice, "x" is represented as "of a number", since the value is unknown.

Therefore, your answer is A, three-fourths of a number plus two.

Beth works at the mall for $12.75 per hour. She works for 4 1/2 hours per day on 2 days each week. How much does she make in 2 weeks? (Before taxes)

Answers

Answer:

so she works 4 days and 4 1/2 hours per day so 18 hours

18x12.75=229.5 she made 229.5 before tax

Step-by-step explanation:

she goes to work 2 days a week so in 2 weeks she goes to work 4 days, she works 4 1/2 hours so 4 days of work equal 18 hours and 18 multiplied by 12.75 is 229.5

Answer:If I am not mistaken it should be $229.5

Step-by-step explanation:I multiplied 12.75*18, I got 18 from the hours added up for 4 days in total.Then the answer came out to be $229.5.               SORRY IF I'M WRONG.

I need help plssssssssssssssssssssss

Answers

Answer:

Step-by-step explanation:

Given:

325 pages

90,000 words

Recommended  reading: 200 words/ 1 minute

How many words on each page ?

90,000 words /325 pages ≈ 277 words / 1 page

Now see the picture.

The numbers for the difference I round them to the nearest word.

Answer:

it is blurry

Step-by-step explanation:

Please help me for questions 2,3,4, and 8. Also explain how to find out correlation for them.​

Answers

Number 2 would be no correlation because the two variables don’t affect each other.
2. no correlation (one time being higher doesn’t mean the other will have to be lower)
3. negative, (as temperature goes up your heating bill will go down)
4. no correlation (pillows will not effect you bed height)
8. no correlation (the cost of the gas isn’t going to change how much gas your car holds)

Find the distance between the points. Write
your answer in simplest form.
(-2,0), (-1,-1)

Answers

I HOPE IT WILL HELP YOU.

Thank you.

this is the answer , i couldn’t type it

Please help. I don't understand this and I need this done by tomorrow.

Answers

Answer:

answers B, C, and F

Step-by-step explanation:

Answer:

a

c

d

Step-by-step explanation:

Scott filled up his car with gasoline and paid $26.46 for a tank of gas. What is the unit rate of gasoline it he
put 14 gallons of gas in his car?

Answers

$26.46 / 14 = $1.89 per gallon

Um taxista cobra R$ 15,00 pela bandeirada mais R$ 0,80 por quilômetro rodado. Qual é o preço a ser pago por uma corrida de 100 quilômetros?


O preço será de R$ 52,80.

O preço será de R$ 95,00.

O preço será de R$ 50,80.

Answers

Answer:

can u wrote this question in english .Because I don´t understand this languages

o preço sera R$ 95,00

Fonte: confia na mãe

Write the equation in function form:
8x + 4y = 20

Answers

Write 8x+4y=20 in function form


Writing a an equation in function form is simply expressing y values in terms of x. In other words when you substitute a particular value for x, you get a particular value for y.

so

8x + 4y = 20

4y = 20 - 8x

y = (20-8x)/4 or y = (20-8x)/4 or y = f(x) = 2(10-4x)/4 = (10-4x)/2 = 5 - 2x = -2x+5

check your answer with a sample values say with a point that solves the equation or a point on the line.....see below....

(2,1)

8(2) + 4(1) = 20......16 + 4 = 20...check.......y=-2(2) + 5 = -4 +5 =1....x=2, y=1...checks....so f(x)=-2x+5

another quick check are the intercepts.....y (x=0)....or x (y=0)

8 (0) + 4 (5) = 20.....(0,5).......y=f(x) = -2 (0) + 5...x = 0..y=5 so again the function checks so

8x + 4y = 20.....is also written as the function y= f(x)= -2x + 5

Sow your work plz and thank you! Best answer gets brainliest!

Answers

Answer:14 divided by 3.5 is  4 so the Eucalyptus tree is 4ftStep-by step explanation:ruta si or nA

Find two fractions that are equivalent to 1/9=2/18

Answers

Answer:

4/36 and 8/72

Step-by-step explanation:

4/39 and 8/72. Hope this help

i need help, can someone help??

Answers

Answer:

900 divided by 3 is 300 and 3*3=9 :)

Step-by-step explanation:

Not sure what the question was, but hope this helps!

900/3=300 ☺️ hope this helps! You’re doing great!

PLEASE SCREENSHOT AND MARKUP FOR 40 POINTS

Answers

Answer:

That seems hard sorry i couldn't help

Step-by-step explanation:

Answer:

wanna be friendz and can i have brainliest please

Step-by-step explanation:

Let f(x)=-x-5 and g(x)=2x+3. Find the indicated value:
x when g(x)=1

Answers

g(x)=2x+3 and g(x)=1 so 2(1)+3 which equals 5 you don’t need f(x) because you don’t have an x value
g(x)=1 <=> 2x+3=1 <=> 2x=1-3=-2 <=> x= -1
=> f(-1)= -(-1)-5=1-5=-4

Find the percent decrease from 175 to 70.

Answers

175 to 70 is 60% decrease
175-70=105
100%=175
70=60% so your answer is 60%

Solve the problems from 10to 12

Answers

10. The answer is going to be C
11. A
i don’t know 12 but i hope this helps
10. C
11.A
12.C if you minus 6 from 44 you get 38inches and c is the only one with 38 inches on it

In which number does the digit 5 have greater value 5,214 or 6,589

Answers

The correct answer is 5,214

The digit 5 in the number 5214 is at a greater value.

What is a number system?

A numeral system is a writing system for expressing numbers; that is, a mathematical notation for representing numbers of a given set in a consistent manner using digits or other symbols. In different numeral systems, the same sequence of symbols can represent different numbers.

Given that there are two numbers 5214 and 6589. In the number 5214, the digit 5 is a thousand places and in the number 6589, the digit 5 is at the hundredth place. The digit 5 will have a greater value in the number 5214.

To know more about the number system follow

https://brainly.com/question/28530423

#SPJ2

Ronnie, Mack, Kim, and Ada together stacked a total of 40 pizzas in a pan. Ronnie stacked 0.25 of the pizzas, Mack stacked 9 of the 40 pizzas, Kim stacked 35% of the pizzas, and Ada stacked the remaining pizzas. Who stacked the most pizzas?

Ronnie
Mack
Kim
Ada

Answers

Ronnie stacked the most pizzas


What fraction is represented in the picture below?



A.
B.
C.
D.


Pls help quick

Answers

Answer:

C

Step-by-step explanation:

Each of the circles are cut into 1/4 pieces. when we have 9 1/4 pieces, our fraction is 9/4, which simplifies into 2 1/4.

Use absolute value to express the distance between −13 and 17 on the number line.

|−13 − 17| = −30
|−13 − 17| = 30
|−13 − 17| = −4
|−13 − 17| = 4

Answers

Just do your work and pay attention in class!!!!
The answer is 4 I think

i need help doing muiltpcation and division one numbers

Answers

Example of the equation you’re struggling with?
What’s the question

what is the value of 6(1+2)+1

Answers

Answer:

6(1+2)+1

Step-by-step explanation:

= 6*1+2+1

=9

Hope this helps

Answer:

19

Step-by-step explanation:

given:

6(1+2)+1..( according to the rule BODMAS;bracket, divide,multiplication,addition,subtraction)should be followed in a proper way!

6*3+1

18+1

19

hope it helps!

Help, Im In Math Class Rn


On Monday, the temperature was 43°F. On Tuesday, the temperature increased 6°F. On Wednesday, the temperature decreased 13°F.

What integer represents the overall change in temperature from Monday to Wednesday?

Answers

13 (increase) - 6 (decrease) = 7 (overall change)

The integer is 7 by my calculations

−16.2=x−(−9.3) HELLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLPP

Answers

Answer:

x=-25.5

Step-by-step explanation:

-16.6=x-(-9.3)

-16.2=x+9.3

-16.2-9.3=x+9.3-9.3

-25.5=x

x=-25.5

Please answer this fast

Answers

Answer: a) 1:1

they are even. if it was 1:2 or 2:1 one of them on the graph would be taller but that are both at the same number

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The Correct option is :

a.) 1 : 1

Refer to attachment for solution ~

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