Mathematics High School

I need an answer for both of these

Answers

Answer 1

Answer:

1. x < -2

2. x < -9

Step-by-step explanation:

1. x + 15 < 13

Minus 15 on both sides.

x + 15 - 15 < 13 - 15

+15 - 15 makes a 0.

x < -2

2. x + 11 < 2

Minus 11 on both sides.

x + 11 - 11 < 2 - 11

+11 - 11 makes a 0.

x < -9

Answer 2

Answer:

1. x < -2

2. x < -9

3. x < 15

Step-by-step explanation:

Treat the < and > symbols as an equals sign to make it less confusing to solve. Then solve for x like you normally would.

1. x+ 15 = 13

subtract 15 from both sides

x=-2, or x < -2

2. x + 11 = 2

Subtract 11 from both sides.

x=-9, or x <-9

3. 19 > x + 4

19 = x + 4

Subtract 4.

15 > x, or x < 15

Related Questions

can someone help me

Answers

Answer: B) 6 minutes

============================================================

Explanation:

Let's find the slope of the table. This will tell us the rate of change.

m = slope

m = (y2-y1)/(x2-x1)

m = (25250 - 26375)/(2 - 1) .... I used the first two rows

m = -1125/1

m = -1125

The slope of -1125 means the plane's altitude is decreasing at a rate of 1125 feet per minute. This is the descent speed.

Since we're told the initial altitude was 27500 ft, this means b = 27500

This means y = mx+b turns into y = -1125x+27500

x is the number of minutes and y is the altitude at time x

As a way to check this, plug in various x values of the table. You should get corresponding y values that match the table. I'll let you do this part.

------------------

Now plug in y = 16250 and solve for x

y = -1125x+27500

16250 = -1125x+27500

-1125x+27500 = 16250

-1125x = 16250-27500

-1125x = -11250

x = -11250/(-1125)

x = 10

It takes 10 minutes after the descent period has started, for the pilot to get to 16,250 ft.

Since the pilot was contacted at the x = 4 minute mark, this means 10-4 = 6 minutes is the duration needed for the pilot to go from 23,000 ft to 16,250 ft.

What is the unit rate for meters per second if a car travels 374 meters in 17 seconds?

Answers

Answer:

22meter per second

Step-by-step explanation:

374/17=22

Answer:

Could I have branliest please and heart answer is below <>

Step-by-step explanation:

374meters. 17

(/). divided by (/)

17seconds 17

Equals 22 meters per second

help im confusion......

Answers

Answer:

Line J

Step-by-step explanation:

It is sloping downwards. It starts in the top left and end at the bottom right, so it it the only negative one

Answer:

Line J

Step-by-step explanation:

Its the only one descending downwards, while the other two are going up in a positive direction.

Hope this helps (:

Which describes the graph of y=(x+6)^2+1?

A. Vertex at (-6,-1)
B. Vertex at (6,-1)
C. Vertex at (-6,1)
D. Vertex at (6,1)

Answers

C. Vertex at (-6,1)

Using the order of operations, what should be done first to evaluate 6 + 10-(-5)(3) - 5?

Answers

Answer:

(-5)

Step-by-step explanation:

Using PEMDAS you should do (-5) because Parenthisis Always Go First, since their are two parenthisis go left to right and answer those first. after that do (3) and after that simply go left to right with 6+10-(-5)(3)-5. Hope this helps.

Benjamin drives 60 miles every hour. He drives 180 miles to his uncles house.

Answers

Answer:

wouldnt it be 3 hours of driving

Step-by-step explanation:

60*3=180

sorry if im wrong

find the length of x and y

Answers

Answer:

x = 10.296

y = 5.831

Step-by-step explanation:

You can use the Pythagorean theorem to solve the triangles shown in various ways.

9²+5²=x²

x = 10.296

5²+3²=y²

y = 5.831

whats 17+-44 describe how you got that answer”

Answers

Answer is -27
If it’s a negative and a positive then the answer will be a negitive but if it’s two negatives then the answer will be positive

Answer:

17 plus 44 is 61.

Step-by-step explanation:

I used a calculator. In order for ur brain to learn something new, its got to get rid of some stuff. am I right?

Linear equations- please help me
−5(5x+3)−5x+1=−44

Answers

the answer is x=1
Add the numbers
Combine like terms
Add
to both sides of the equation

Simplify

Divide both sides of the equation by the same term

A private college allows local residents to use athletic facilities such as the gym and the pool for a fee. The college charges a one time registration fee of $25 and also charges a fee of $18 per semester of use. complete the table to show the total cost of using the athletic facilities after each semester listed.

Answers

Step-by-step explanation:

1) 43

2) 61

3) 79

4)97

5)115

Answer:

popoverlover20 is correct I got it right

Answer:B if two lines are cut by a traversal, then corresponding angles are congruent.

Step-by-step explanation: the corresponding angles theorem proves this.

im sure the answer is B :)

259 Students go on a field trip. There are 19 vehicles, some vans and some buses.

7 students can fit in a van, and 25 students can fit in a bus.
how many buses were there?
how many vans were there?

Answers

7 buses, 12 vans

Explanation:
12 vans, 7 Buses
7 x 25 = 175
12 x 7 = 84

175 + 84 = 259

In ΔQRS, r = 1.5 inches, ∠S=23° and ∠Q=22°

Answers

Answer:

1.34 hope this helped

Step-by-step explanation:

Answer: 0.8

Step-by-step explanation:

S/sin 23 = 1.5/sin 135

s= 1.5 sin23/sin 135 = 0.829

ROUND IT TO THE NEAREST 10th and you get 0.8

Question : WHICH OF THE LINES IS PARALLEL ? HOW DO YOU KNOW ?

Answers

Answer:

B and R

I think that is the name of the lines. If not the the first two lines!!!!

I need help!! Worth 13 points!!

Answers

Answer:

601/14

Step-by-step explanation:

1/7(-1/2)=-1/14

Answer: The answer would be the favorable out some (how many blues) over the total outcomes (all marbles added together)

So the answer would be 3/14 or 21%

fifty-six thousandths in decimal form and standard form

Answers

Your answer is 0.056 for decimal form and your standard form is 56,000.00

0.056 is the decimal form and 56000.00 is the standard form.

What is the standard form of decimals?

'Decimal numbers in standard form are the simplest form, that can be easily read and written.'

According to the given problem,

The value of the digits to the right of the decimal point is less than 1

Hence we can conclude that decimal form is 0.056, Standard form is 56000.00.

Learn more about standard form of decimals here: https://brainly.com/question/18744986

#SPJ2

3. a) The dimensions of your game cover are 20 cm x 15 cm. However, you need to have a strip of
constant width around the border for labeling purposes (game console type, etc). This width will
take up 32% of your game cover's total space. What is the width of the border? Make sure to
state any values that don't make sense.

Answers

20cm×15 cm =300

/100 = 0.32

9514 1404 393

Answer:

1.5 cm

Step-by-step explanation:

All areas are in cm^2. For a width w, the border will have an area equal to the product of its centerline length and its width:

border area = 2((20-w) +(15-w))·w = w(70 -4w)

This area is 32% of the total cover area, so is ...

0.32(20)(15) = 96

Equating these expressions for the area gives ...

96 = 70w -4w^2

w^2 -17.5w = -24 . . . . . divide by -4

w^2 -17.5w +8.75^2 = -24 +8.75^2 . . . . . complete the square

(w -8.75)^2 = 52.5625 . . . . simplify

w -8.75 = ±√52.5625 = ±7.25

A border width only makes sense if it is between 0 and 7.5 cm, so the appropriate value for w is ...

w = 8.75 ± 7.25 . . . . . . . . . add 8.75

w = 8.75 -7.25 = 1.50 . . . . . the solution w=16 makes no sense

The border width is 1.5 cm.

The length of a room is 4 feet less than twice its width. The perimeter of the room is 58 feet. What is the length of the room?

Answers

Answer:

Length = 18

Step-by-step explanation:

Length= 2w - 4

Perimeter= 58

Perimeter= 2L + 2w

58 = 2(2w-4) + 2w

58 = 4w -8 + 2w

58 = 6w - 8

66 = 6w

11 = w

Plug in width to find the variable L

58 = 2L + 2(11)

58 = 2L + 22

36 = 2L

18 = L

When applying a discount and then a tax, you will multiply to find the discount, subtract it, multiply to find the tax, and then add it. True or False?

Answers

When applying a discount.......True

Leon is using an area model to multiply 38×14. First, he makes a rectangle that is 38 units long and 14 units tall. Then, he breaks it into smaller parts using place value to make it easier to multiply. Use the drop-down menus to show the area of each part.

Answers

Answer:

300, 120, 80 and 32 respectively.

Step-by-step explanation:

To break it down for easy multiplication, write

38 as 30 + 8

14 as 10 + 4

Now let's multiply

(30 + 8)(10 + 4) = 300 + 120 + 80 + 32

So the areas of each part would be

300, 120, 80 and 32 respectively.

Callie pays for a cat toy with a $10 bill and receives $2.55 in change. The equation 10 - c = 2.55 gives the cost in dollars for the cat toy. Determine whether c=6.45, c=7.45 or c=8.45 is a solution of the equation, and tell what the solution means. The

Answers

Answer:

c = 7.45

Step-by-step explanation:

its easy and im smart that's why i got it

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