Which of the following is the standard form of the equation 5x2 - 20x = 15?

Answers

Answer 1

x= +7 or x=2-7 let me know if you need an explanation <3
Answer 2

Answer:

Step-by-step explanation:

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Related Questions

Can you deposit 1750 into investment account that will produce 6.05% annual interest the money was left in the car for two years how much interest has occurred after two years

Answers

Step-by-step explanation:

Find out how much you get money from the annual interest:

100% = 1750

1% = 1750 ÷ 100 = 17.5

6.05% = 17.5 x 6.05 = 105.87

Find out how much you get from interest in 2 years.

105.87 x 2 = 211.74

(Final answer)

In a large population, 53 percent of the people have been vacinated. If 4 people are randomly selected, what is the probability that at one of them has been vacinated?

Answers

Answer:

4/57

Step-by-step explanation:

Prob=DC/SS

=4/53+4

=4/57

1.2.B-7
Each successive figure below is made of small triangles like the first one in the sequence. Conjecture the number of small triangles needed to make a. the 100th figure? b. the nth figure?

Answers

Answer:

A. 10,000

B.n^2

Step-by-step explanation:

Find the volume of the figure below

Answers

Answer:1,008

Step-by-step explanation:

Multiply all the numbers

Help
ASAP
Due at 11:59

Answers

Answer:

1.5 cars/hour

Step-by-step explanation:

if you look at the graph and go up by hour it calculates to 1.5 cars/hour

hope it helps

Brainliest if right :)

Answer:

The average would be 5.25

Step-by-step explanation:

If you add up all of the points

1.5+3+4.5+6+7.5+9=31.5

Divide that by the number of points there are, which is 6

31.5/6

and you should get your answer of 5.25 cars Quick-E-Clean can detail in an hour.

Greg is 5 times Sam's age. Greg is 15 years old. Write an equation to represent "s", Sam's age​

Answers

Answer:

The equation to represent Sam's age​ is 15 ÷ 5 = s

s = 3

please help will give brainliest
Mary is doing research on bird migration. Last week she counted 12 migratory birds in her yard. This week she counted 10. What was the percent decrease in birds this week? please show work!​

Answers

Answer:

16.67%

Step-by-step explanation:

Decrease in number:

12 - 10 = 2

Percent decrease:

2/12*100% = 16.67% rounded

Can someone help me? Would be nice!

Answers

S flipped over the y-axis is T

Answer: That would be C

Step-by-step explanation:I took that quiz and got it right on

And can you please give brainliest

Find the Area of the figure below, composed of a parallelogram and one semicircle. Rounded to the nearest tenths place


Please help see the picture

Answers

Answer:

Area of the figure= area of the rectangle+ area of the semicircle

=(15×14)+(1/2)π(7)²=210+77=287 square unit

287 square unit is the right answer.

Remember:--- area of the rectangle

=(length×breadth)

and area of the semicircle=π(radius)²/2

8 feet to 10 feet percent of change

Answers

Answer:

25 percent is the answer

Step-by-step explanation:

If i got the answer coreect can y mark brainliest? thanks.

Answer:

8 represents the old value and 10 represents the new value. In this case, since the new value is greater than the old value, we have a positive shift (increase) of 25 percent.

Step-by-step explanation:

have a good day, i got this from g.o.og.l.e i dont know if this is what you want. i did add some of my thoughts to this answer

Help me solve this please !!

Answers

Answer:

I think its the first one? 12 <x<15

Step-by-step explanation:

Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels at 80 miles per hour. The westbound train travels at 60 miles per hour. How long will it take for the two trains to be 308 miles apart?
Do not do any rounding.

Answers

Answer:

The answer is 2.2

Step-by-step explanation:

you add the 2 trains then you divide the total of the two by the total miles which is 308 miles apart and it will give you 2.2 without rounding check the calculator if you want

x - 62.54 = 85.6

Answer for x

Answers

Answer:23.06

Step-by-step explanation:

subtract 85.6 from 62.54 and that should shoot out your answer

Answer:

x = 148.14

Step by Step explanation:

You add 62.54 plus 85.60 equals 148.14.

la). The answer to a subtraction problem is the
1b). The answer to an addition problem is the

Answers

Answer:

The answer in a subtraction problem is called the difference

the answer to addition is called the sum

Step-by-step explanation:

What is the total surface area?

Answers

Answer:

193.2 cm2

Step-by-step explanation:

18 x 9 = 162

(5.2*6)/2 = 15.6

162 + 15.6 + 15.6 = 193.2 cm2

193.2 cm2 is the total surface area .

A small companies net income for the first six months of the year was $76,500 and for the last six months it was $100,000 what is the ratio of the first six months of the year to the last six months of the year and simplest form

Answers

Answer:

The ratio of net income in the first 6 months, to the last six months is $76,500 / $100,000. This simplifies intuitively as follows:

76500/100000

Dividing by 100: 765/1000

Dividing by 5: 153/200

The denominator 200 is only divisible by the prime numbers 2 and 5, and since the numerator 153 is not divisible by either 2 or 5, this means that this is in simplest form, and the final answer is 153/200.

Step-by-step explanation:

I need help please its urgent

(9x9) x (9×9)

25 points and brainliest

Answers

Answer:

6561

Step-by-step explanation:

81×81=6561

parenthesis first then multiply together

Answer:

6561

Step-by-step explanation:

hope this is correct!!

9x9=81

9x9=81

81x81=

6561

Three sailors were marooned on a deserted island that was also inhabited by a band of monkeys. The sailors worked all day to collect coconuts but were too tired that night to count them, They agreed to divide them equally the next morning. During the night, one sailor woke up and decided to take his share. He found that he could make three equal piles, with one coconut left over, which he threw to the monkeys. Thereupon, he put his own share in a pile down the beach, and left the remainder in a single pile near where they all slept. Later that night, the second sailor awoke and, likewise, decided to take his share of coconuts. He also was able to make three equal piles, with one coconut left over, which he threw to the monkeys. Somewhat later, the third sailor awoke and did exactly the same thing with the remaining coconuts. In the morning, all three sailors noticed that the pile was considerably smaller, but each thought that he knew why and said nothing. When they then divided what was left of the original pile of coconuts equally, each sailor received seven and one was left over, which they threw to the monkeys. How many coconuts were in the original pile

Answers

Step-by-step explanation:

x-the initial number of coconuts

x=3y+1

2y=3z+1

2z=3×7+1=>z=11=>y=17=>x=52

The number of coconuts in originally was 25.

What is division?

Division is breaking a number up into an equal number of parts.

Given that, there are three sailors and a band of monkeys on an island, and they are distributing the coconuts,

Let x be the number of coconuts to start with.  We are given that it is a whole number.

After Sailor 1 gives one to the monkey and takes a third. Then the number of coconuts remaining is (x-1) - (x-1) (1/3) = 2(x-1)/3.

Sailor 2 gives 1 coconut to the monkey, so there are 2(x-1)/3 - 1 = (2x-5)/3.  He takes a third and leaves [(2x-5)/3](2/3) = (4x-10)/9.

Sailor 3 gives 1 to the monkey, so now

(4x-10)/9 -1 = (4x-19)/9 are left.  

He takes a third, leaving behind [(4x-19)/9](2/3) = (8x-38)/27

This is the number of coconuts in the pile that the sailors found next morning.

Let (8x-38)/27 = y, say, which gives 8x = 27y + 38.

We are given that it is less than 10, and it is a whole number divisible by 3 (because each sailor took a third and nothing was left).

Therefore, possible values for this number are 0, 3, 6 and 9.  But we are also given that the initial pile had a whole number of coconuts.  Hence, the problem reduces to finding that y from  which 8x = 27y + 38, gives an x as a whole number.

You will see that the only y that gives x as a whole number is y = 6

Then 8x = 200, so x = 25

Hence, the number of coconuts were 25.

For more references on division, click;

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Suppose you are given two quadrilaterals, ABCD EFGH. If the similarity ratio of ABCD to EFGH is 4:3, and it EH =
60, find AD
a. 45
0.90
b. 40
d. 80
Please select the best answer from the choices provided
B

Answers

Step-by-step explanation:

ABCD : EFGH = 4 : 3

Therefore AD : EH is also 4 : 3.

We are given that EH = 60,

Hence AD : (60) = 4 : 3, AD = 80. (D)

Answer:

80

Step-by-step explanation:

The equation y=15x+20 represents the cost y (in dollars) of a gym membership after x months

Answers

The first month will cost $35. 2nd month $50. 3rd month $65. 4th month $80. 5th month $95. Price goes up $15 dollars each month.

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

The cost of a gym after 2 months is 50

The cost of a gym after 3 months is 65

The cost of a gym after 4 months is 80

What is an equation?

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Example:

2x + 4 = 5 is an equation.

3x + 4x = 5 is an equation.

We have,

y = 15x + 20

x denotes months

y denotes the cost for x months.

20 = one-time membership

15 = cost per month.

Now,

Substitute x = 1, 2, 3, 4, 5, 6, . . .

y = 15 x 1 + 20

y = 15 + 20

y = 35

y = 15 x 2 + 20

y = 30 + 20

y = 50

y = 15 x 3 + 20

y = 45 + 20

y = 65

y = 15 x 4 + 20

y = 60 + 20

y = 80

Thus,

The cost of a gym after 2 months is 50

The cost of a gym after 3 months is 65

The cost of a gym after 4 months is 80

Learn more about equations here:

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Help ASAP WILL DO BRAINLIEST!!! simplify

Answers

Answer: 76x+97/56

Step-by-step explanation:

Answer:

76x + 97

_______

    56

Step-by-step explanation:

1) Find x.
2x - 8
X - 3
5
3

Answers

9514 1404 393

Answer:

  x = 9

Step-by-step explanation:

Corresponding segments are proportional, so ...

  (2x -8)/5 = (x -3)/3

  3(2x -8) = 5(x -3) . . . multiply by 15

  6x -24 = 5x -15 . . . . eliminate parentheses

  x = 9 . . . . . . add 24-5x

Find the value of x and y so that the quadrilateral is a parallelogram.
к
449
M
X =
y =

Answers

k 449 m 199 x 14 y 55

(4y + 6) + (5n + 9) = ??? Simplify your answer

Answers

Answer:

[tex]5n+4y+15[/tex]

Step-by-step explanation:

Eliminate redundant parentheses:

[tex]4y+6+5n+9[/tex]

Add the numbers:

[tex]4y+15+5n[/tex]

Rearrange terms:

[tex]5n+4y+15[/tex]

Therefore, [tex]5n+4y+15[/tex] is the answer.

(4y + 6) + (5n + 9) = ?
4y + 6 + 5n + 9
5n + 4y + 15

Given the function, f(x)= (3x+3+3, choose the correct transformation(s).
o Horizontal Compression, Left 1, Up 3
o Horizontal Stretch, Left 3, Up 3
O Vertical Compression, Left 1, Up 3
o Vertical Stretch, Left 3, Up 3
NEXT QUESTION
ASK FOR HELP

Answers

Answer: horizontal stretch, left 3,up 3

Step-by-step explanation:

Erik rode down an escalator, while Raj rode up.

A coordinate grid showing Escalator Ride with Seconds on the Escalator on the horizontal, t, axis, and Elevation in meters on the vertical, h, axis with 2 lines. One line labeled Erik, and passes through (0, 12) and (8, 6). The second line labeled Raj, passes through (0, 0) and (8, 6).
Erik's elevation is represented by the equation h = 12 – 0.75t, and Raj's elevation is represented by h = 0.75t. What does the point of intersection on the graph represent?

Erik and Raj were at the same elevation after both of them had been riding the escalator for 6 seconds.
Erik and Raj were at the same elevation after both of them had been riding the escalator for 8 seconds.
Erik and Raj were at the same elevation after Erik had been riding the escalator for 6 seconds and Raj had been on the escalator for 8 seconds.
Erik and Raj were at the same elevation after Erik had been riding the escalator for 8 seconds and Raj had been on the escalator for 6 seconds.

Answers

Answer:

B. They were at the same elevation after riding the escalator for 8 seconds

Step-by-step explanation:

Point of Intersection

If we solve the elevation equations of both we find that Erik and Raj were at the same elevation after both of them had been riding the escalator for 8 seconds.

What is a graph?

A graph is a collection of various points on a sheet.

What does the intersection point says?

If we take elevation equations of both and solve we could easily find the value of t

h=12-0.75t

h=0.75t

equating both

0.75t=12-0.75t

1.5t=12

t=8

Hence it means that they were at the same elevation after both of them had been riding the escalator for 8 seconds.

Learn more about graph at https://brainly.com/question/4025726

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20 points plus Brainly Find the measure of missing angle.

Answers

Answer:

50

Step-by-step explanation:

90 plus 40 is equal to 130, so 180 minus 130 is 50

Which group of numbers is listed from least to greatest 975|-4|-3|​

Answers

Answer:

it is the first one

Step-by-step explanation:

yw

Answer:

I think the answer is first one.

Charlin got 15 questions correct on her exam and scored a 75%. How many (total) questions were on the exam?

Answers

Answer:

There were 20 total questions.

Step-by-step explanation:

[tex]75\% = 0.75 = \frac{3}{4} \\ \frac{15}{ \frac{3}{4} } = \frac{15(4)}{3} = \frac{5 \times 3 \times 4}{3} = 5 \times 4 = 20[/tex]

900 has how many 100s?

Answers

Answer:

9

Step-by-step explanation:

900 has nine 100.

Hope it helps you in your learning process

900 has 9 100

Step-by-step explanation:

9÷1 then add the zeros

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