Mathematics High School

Gavin needs $80 to buy a fish tank. He has saved $8 and plans to work as a babysitter to earn $9 per hour. Which inequality shows the minimum number of
hours, n, that Gavin should work as a babysitter to earn enough to buy the fish tank?
8 + 9n ≥ 80, so n ≥ 8
8 + 9n ≤ 80, so n ≤ 8
9n ≥ 80 + 8, so n ≥ 9.8
9n < 80 + 8. so n < 9.8

Answers

Answer 1

so the answer would be 8+9n≥80. The reason why is because he has $80 and he saved $8 and he earned $9 for each hour but we do not know how many hours so that is why it is n. and it says minimum so u might think that it might be ≤ but my sister says to think the opposite so the symbol will be ≥.

Hope this helps ^_^

Related Questions

. A man bought a car for $60 800. After one year, it was worth $51 680. What is its depreciation as a percentage of the selling price?

Answers

Answer:

c 3

Step-by-step explanation:

(800-51680)/800
= -50880/800 = -318/5 x 20/20
= -6360/100
= -6360%

The lines represented by the equations 5y - x = 5 and y - x = 1 are

Answers

Answer:

Same line

Step-by-step explanation:

5y - x = 5                           y - 1/5x = 1

5y = x + 5                           y = 1/5x + 1

5y/5 = x/5 + 5/5

 y =  1/5x + 1

I am a student in 7th honers and was wondering if someone can help me learn the basics of pre-algebra because I understand none of it.​

Answers

Answer:

I reccommend using an AoPS book. You can learn more at aops.com

Step-by-step explanation:

Find the 66th term of the arithmetic sequence -10, 7, 24, ...−10,7,24,...

Answers

Answer:

a(66) = -10 + 17(65) = 1095

Step-by-step explanation:

We know that this is an arithmetic sequence.  Subtracting -10 from 7 results in 17; subtracting 7 from 24 also results in 17.  Thus, the common difference, d, is 17.  The first term is -10.

The general form of an arithmetic sequence is a(n) = a(1) + d(n - 1).

Substituting -10 for a(1) and 17 for d, we get:

a(n) = -10 + 17(n - 1)

Now let n = 66:  a(66) = -10 + 17(66 - 1), or    a(66) = -10 + 17(65) = 1095

Solve for m
kx-bf=fy/m

Answers

Answer:

m=fy/kx-Bf

Step-by-step explanation:

you simply simplify the equitions to be left with m on one side

Can you help me plzzzzzzz

Answers

Answer:

Step-by-step explanation:u have to add x+6 = ur answer there u go

Josh works in a balloon store he will put 45 balloons into bunches he must use the same number of balloons in each bunch the number of balloons in each bunch must be greater than one and less than 10 how many balloons could be in each bunch what I wrote was 357 balloons is that wrong or right?

Answers

Answer: 5 or 9

Find the factors of the number 45.

1, 5, 9, 15

The numbers must be greater than 1 and less than 10.

Now, we must take 5 and 9.

5 x 9 = 45

9 x 5 = 45

The answers are 5 & 9.

Step-by-step explanation:

whoever answers i’ll mark brainliest

Answers

Answer:

D is (-5,0)

E is (-1,2)

F is (-3,-2)

Step-by-step explanation:

:P

f(x)=-x^2+9x+4f(x)=−x2+9x+4\text{Find }f(-8)Find f(−8)

Answers

Answer:

-74

Step-by-step explanation:

f(x) = -2x^2 +8x -10

Let x = -4

f(-4) = -2 ( -4)^2 +8(-4) -10

    = -2(16) -32-10

    = -32 -32-10

   = -74

Find the slope of the line x=+6

Answers

Step-by-step explanation:

x = 6

is a straight vertical line (parallel to the y-axis, going through x=6 on the x-axis).

it's slope is therefore undefined (infinite). every possible y value (from -infinity to +infinity) is associated with this one x value (6).

he 134 sixth grade students sit together in the auditorium. Each row has 12 seats. How many rows do the sixth graders need

Answers

Answer:

Approximately 11.1666666667 rows

Step-by-step explanation:

134/12= 11.1666666667

Answer:

  12 rows

Step-by-step explanation:

  (134 students) / (12 students/row) = 11 2/12 rows

The 6th-graders will need 12 rows of seats. The last row will not be filled.

Geometry!
Use the diagram of triangle MNO where, X, Y, and Z are the midpoints of the sides.

Answers

Answer:

YZ = 7 , MO = 8

Step-by-step explanation:

A segment joining the midpoints of 2 sides of a triangle is half the length of the third side.

(11)

YZ = [tex]\frac{1}{2}[/tex] MN , that is

3x + 1 = [tex]\frac{1}{2}[/tex] (10x - 6) = 5x - 3 ( subtract 5x from both sides )

- 2x + 1 = - 3 ( subtract 1 from both sides )

- 2x = - 4 ( divide both sides by - 2 )

x = 2

Then

YZ = 3x + 1 = 3(2) + 1 = 6 + 1 = 7

(12)

XY = [tex]\frac{1}{2}[/tex] MO , that is

x - 1 = [tex]\frac{1}{2}[/tex] (3x - 7) ← multiply through by 2 to clear the fraction

2x - 2 = 3x - 7 ( subtract 3x from both sides )

- x - 2 = - 7 ( add 2 to both sides )

- x = - 5 ( multiply both sides by - 1 )

x = 5

Then

MO = 3x - 7 = 3(5) - 7 = 15 - 7 = 8

If the ratio of grapes to walnuts to oranges is 6:6:12, how many grapes are there if the total number of fruits is 192?

Answers

Answer:

48 grapes,

Step-by-step explanation:

Firstly, let's sum up the ratio,

6+6+12=24

The fraction of grapes is therefore, 6÷24 or ¼

A ¼ of 192 is 48.

Signifying, there are 48 grapes.

A cheerilee teen willing to help,

stay positive, safe and Brainly!

Question:-

If the ratio of grapes to walnuts to oranges is 6:6:12, how many grapes are there if the total number of fruits is 192?

Answer:-

48 grapes

Explanation:-

look at the attached picture :)

You alright today? <3

Answers

Answer:

No because No one will brianliest me

Step-by-step explanation:

Answer:

I am alright. What about you?

in the diagram below M is the midpoint of KL​

Answers

What are you asking? Could you clarify the questions bit more?

100 POINTS IF U GET THIS RIGHT!

Answers

[tex]\\ \sf\longmapsto y=\dfrac{2}{7}x+\dfrac{1}{3}[/tex]

Compare to slope intercept form of a line

[tex]\\ \sf\longmapsto y=mx+b[/tex]

m=Slope=2/7b=y-intercept=1/3

how what is 3/56 as a percentage​

Answers

5.4% rounded up to 1 decimal point

Answer:

5.4% rounded to the tenths place.

Reasoning:

To convert 3/56 to a percentage, multiply the decimal version of 3/56 by 100.

Estimated, 3/56 as a percentage is 5.4%

How many students read in 15 minutes between 8am and 9am

Answers

more infomation? like a picture or something

A triangle has an area of 160 square inches and the base of the triangle is 40 inches. What is the height of the triangle?

Answers

Answer:

8 inches

Step-by-step explanation:

h = 2 A/b

A = 160

b = 40

160/40 = 4

2 x 4 = 8 inches

The height of the triangles is 8in.

hope this helps!! p.s. i really need brainliest :)

In 2013 the population of Indonesia was 200 million. The population was increasing by 2.3% per year. What will the population of Indonesia be in 2022.

Answers

Just multiply and you have the answer

Help plz explain work

Answers

Answer:

i cant see anything

Step-by-step explanation:

.

A painting is 15 in tall and 20 in wide. If it is reducted to a width of 4 in, then how tall will it be?

Answers

20/4=5
15/5=3
3in
(However, it is not specified whether it is also compressed in it’s height as well as it’s length - just stick with the 3 inch height)

6 1/2 divided by 3/4 in simplest form

Answers

Answer:

26/3

Step-by-step explanation:

6 1/2 divided by 3/4 = 13/2 divided by 3/4

[tex]\frac{13}{2} / \frac{3}{4}\\[/tex]

[tex]=\frac{13}{2} * \frac{4}{3}[/tex]

=[tex]\frac{26}{3}[/tex]

The data for the distance d, in miles, remaining for a train to travel to its destination t hours after it departs a station are
shown in the scatter plot. Which of the following functions best fits the data?

Answers

Using the slope - intercept format, the equation which models the data represented by the graph is d(t) = -50t + 300

According to the general form of a linear regression equation :

y = bx + c b = slope ; c = intercept

Slope, b = (Δy ÷ Δx)

Slope = (200 - 50) ÷ (2 - 5)

Slope = 150 ÷ -3 = -50

Intercept is the point where the regression line crosses the y - axis.

From the graph, the intercept = 300

Hence, the regression equation is y = -50t + 300

Learn more : https://brainly.com/question/19017188

which one is the same to 0.6 . 1/6 , 6% , 3/5 , 60% or 6/100

Answers

3/5 and 60% are both equivalent to 0.6

Which is a solution for 7 (x plus 2) equals 35?

Answers

7x = 35 (divide by 7 on both sides to get x by itself)
x = 5

How to solve algebraic inequalities.

Answers

Algebraic inequalities can be solved in the same way in which algebraic equations are solved.

Find an ordered pair (x,y) that is a solution to the equation. 3x-y=8

Answers

Answer:

(2,-2)

Step-by-step explanation:

[tex]3x-y =3(2) -(-2)= 6 +2 = 8[/tex]

workout the perimeter of this shape 3cm 5cm 2cm 6cm

Answers

Answer:

Perimeter is 16 cm

Step-by-step explanation:

3+5+2+6=16

im assuming the amounts given are the side lengths

16 you add them all together because there all the same units

Help please I rlly don’t understand

Answers

a) 2

b) 93

that's the answer

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