Mathematics College

the temperature was 20 degrees below 0 at midnight. By morning it fell another 15 degrees. choose the correct expression

A. 20-15
B. -20+(-15)
C. -20+15​

Answers

Answer 1

Answer:

C

Step-by-step explanation:

-20 + 15 = -35

a negative + a positive = a negative

Hope this helps!

Related Questions

Y - 58 = -43

Helppppp

Answers

Answer:

y = 15

Step-by-step explanation:

y - 58 = -43

add 58 to both sides

y = 15

Answer:

y = 15

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define Equation

y - 58 = -43

Step 2: Solve for y

Add 58 on both sides:                    y = 15

Step 3: Check

Plug in y into the original equation to verify it's a solution.

Substitute in y:                   15 - 58 = -43Subtract:                             -43 = -43

Here we see that -43 does indeed equal -43.

∴ y = 15 is the solution to the equation.

PLEASE HELP THANK YOU SO MUCH!

Answers

Answer:

Triangle FHL

Step-by-step explanation:

A bakery sold a total of 120 cupcakes in a day, and 66 of them were mocha flavored.
What percentage of cupcakes sold that day were mocha flavored?

Answers

Answer:

55%

Step-by-step explanation:

55% of the cupcakes were mocha flavored.

55% of the cupcakes where mocha flavored hope this helps u

At the mini-mart, Kathy spent $1.39 for a muffin, $2.99 for milk, and $0.99 for a bag of chips. About how much did he spend?
$5.00
$3
$4.00
$5.37

Answers

Answer:

$5.37

...............

the answer is $5.37 but it asks for the approximate amount, not the exact amount so the answer is $5.00

Graphically, a point is a solution to a system of two inequalities if and only if the point
A. lies in the shaded region of the top inequality, but not in the shaded region of the bottom inequality.
B. lies in the shaded region of the bottom inequality, but not in the shaded region of the top inequality.
C. lies in the shaded regions of both the top and bottom inequalities.
does not lie in the shaded region of the top or bottom inequalities.

Answers

Answer: C. Lies in the shaded region of both the top and bottom inequalities.

PLEASE HELP!!!

Which of the following relationships represents a function?
A.
x -6 5 -2 -2
y 8 6 8 7


B.
x -6 5 -6 7
y 8 8 14 7


C.
x -6 5 -3 10
y 8 6 14 8


D.
x -6 5 -2 5
y 8 6 8 7

Answers

Answer:

c

Step-by-step explanation:

hehehehhehrhehheheh

HELP ME SOLVE THIS PLEASE! I WILL GIVE BRAINLYEST​

Answers

Answer:

Step-by-step explanation:

y keeps adding 6 while x keeps adding 3

HELP ME FAST PLEASE!!

If -x is positive, then -x>0??

TRUE OR FALSE???

Answers

Answer:

true because if it's positive it's greater than zero

Step-by-step explanation:

True, when it’s positive it is going to be higher than 0

Solve for x. Round your answer to the nearest tenth.

Answers

Answer:

The Pythagorean theorem should help you out. Since you already know two sides of the triangle, you can do a^2 + b^2 = c^2

So in this problem, 16.5^2 + 9.2^2 =
272.25 + 84.64 = 356.89

Pasty you would take the square root of 356.89 and you would get x = 18.89 or 18.9 rounded to the nearest tenth

You can check your work by the Pythagorean theorem once more. 16.5^2 + 9.2^2 = 18.9^2 and you should get the same approximate answer (it will be a little bigger because you rounded)

How many cm in 12.7 inch

Answers

The answer would be 32.258 centimetres
The answe is what he told u Alr pay attention

How to attach multiple photos?​

Answers

Answer:

click the paperclip

Step-by-step explanation:

you can click the paperclip and paste multiple pictures

he height of Niagara Falls is 56 meters. How many
kilometers high is Niagara Falls?

Answers

Answer:

0.056 kilometers

Step-by-step explanation:

find slope from table find slope from graph use slope formula

Answers

Answer:

To find the slope of both graph and table, you would have to know the coordinates of both.

Step-by-step explanation:

The formula is: m= y2-y1/x2-x1

Let's say that the graph/table says one point lays on (2,9) and the other is (-3,4). You would use the formula to get your slope.

m= 9-4/(-3)-2

m=5/-5

m= -1

Answer:

rise over run

Step-by-step explanation:

Of the 450 parking spaces in a parking
lot 8% of the spaces are reserved for
handicapped parking. Of those parking
spaces NOT reserved for handicapped
parking, 18 are suitable for compact cars
only. How many spaces that are NOT
reserved for handicapped parking are
suitable for noncompact cars?
A. 432
B. 424
C. 414
D. 396
E. 369

Answers

Answer:

D. 396

Step-by-step explanation:

8/100 × 450 = 414

414 - 18 = 396

Answer:

answer could be e. 369

Step-by-step explanation:

762×819 _7299

Weight is a measure of force affected by gravity. The Moon’s gravity is less than Earth’s gravity, so objects weigh less on the Moon than on Earth.


How much do you think a cat will weigh on the Moon? Explain your reasoning.

Answers

9514 1404 393

Answer:

  about 1.5 pounds

Step-by-step explanation:

The moon's gravity is about 1/6 that of Earth, so a 9-lb cat would weigh about 9/6 = 1.5 pounds on the moon.

39-[20/4+2(3+6]
And how do i do it?

Answers

Answer: 16 :)))))))))))))))))))))







Denzel identified (3,2) as a point on til
y-2=2/3(x+3). What is the error that Denzel
made?
Type Here.

Answers

Answer:

im srry

Step-by-step explanation:

Evaluate (11 + 4) ÷ 3 x √64 =

Answers

Answer:

40

Step-by-step explanation:

(11 + 4) / 3 x [tex]\sqrt{64[/tex]

(15)/3 x 8

5 x 8

40

there? 65
11. A shark chases 244 fish, and eats 3/4 of them - how many does it eat?​

Answers

168 is the answer of this question

Answer:

168 is the answer ...... .. .........., . . .. ... . . . .. ..

What is the equation in standard form of the line y - 5 =
5=(x + 6)?
2y-10=3x + 18
2y = 3x + 28
3x - 2y = -28
3x = 2y - 28

Answers

Answer: 5(2x + 3). = 2x2 + 3x − 10x − 15 ... 5. Expand. 1. 2. (2y – 8). 6. Expand and simplify. ... 28 g. 72 h. 162. 2. Simplify. a. +. 72. 162 b. −. 45 2 5.

Step-by-step explanation:

Is 3abc an expression?

Answers

Answer:

yes

Step-by-step explanation:

an expression is like an equation without the equal sign, or according to the Oxford Dictionary: "a collection of symbols that jointly express a quantity."

Answer:

Yes

Step-by-step explanation:

An expression is a collection of symbols that jointly express a quantity, which means a set of symbols that equals a number. a,b, and c are all variables, meaning that its a expression

Compute the sum of all nine 2-digit numbers with a ones digit of 6.

Answers

Sum of all nine number  = 438

Step-by-step explanation:

Given :

2 Digit Number whose ones place is 6.

Solution :

Nine numbers are - 16,26,36,46,56,66,76,86,96

Sum of all nine number  = 16+26+36+46+56+76+86+96 = 438

For more information, refer the link given below

https://brainly.com/question/13013054?referrer=searchResults

8x-(14x - 12) = 48 - 6x

Answers

Ø no solution!
8x-1(14x-12)=48-6x
Distribute the -1
8x-14x+12=48-6x
combine like terms
-6x+12=48-6x
-6x and -6x cancel out
12=/=48
12 doesn't equal 48 so it's no solution, hope this helps!

Frosty rolled around the track for laps in 10 minutes

A.how many minutes per lap is that be

B.how many laps per minute is that

C.if Frosty holds 40 laps at the same rate how long take does it take him

Answers

a. 2.5 minutes
b. 0.4 laps
c. 100 minutes

Answer:

In bold below.

Step-by-step explanation:

A . 10/4 = 2.5 minutes per lap.

B. Laps per minute = 1 / 2.5 = 0.4 laps per minute.

C. Time taken  for 40 laps = 40 / 0.4 = 100 minutes.

Evaluate the expression for y= -1 -13y-16

Answers

Answer: y = -17/14

Step-by-step explanation:

y = -1 -13y - 16

First we must isolate the variable:

y+13y = -1 - 16

Next we must add like terms:

14y = -17

Finally, divide 14 on both sides:

14y/14= -17/14

Answer: y = -17/14

Hope this helps

2) In A ABC , if LA = 60° , LB = 450 then find tc.​

Answers

Given:

In ∆ABC,

Angle A = 60°

Angle B = 45°

To Find:

The measurement of Angle C.

We know that the sum of all the interior angles of a triangle is 180°.

Explanation:

Angle A + Angle B + Angle C = 180°

By putting the respected values, we get

60° + 45° + Angle C = 180°

or, 105° + Angle C = 180°

By transposition method, we get

Angle C = 180° - 105°

Angle C = 75°

Answer:

The measurement of Angle C is 75°

Which graph does NOT represent a function?

Answers

Answer:

graph b

Step-by-step explanation:

it's b because it doesn't have any features like a function it's just a round shape that makes it a none function

pls help me with this i need help with this

Answers

The measure of the missing angle is 118 degrees

What are quadrilateral?

Quadrilateral are figures that have sides and angles

For two parallelograms to be equal, the ratio of the sides must be equal to a constant

Also, all the measure of the angles must be equal. From the given parallelogram, the measure of the angles must be equal that is;

x = 118 degrees

Hence the measure of the missing angle is 118 degrees

Learn more on similar sides here:https://brainly.com/question/24184322

#SPJ1

Answer:

118degrees

Step-by-step explanation:

(-3)(3) + ? = -8
What value makes it true
-1
1
-17
17

Answers

I’m just answer is 17

Answer:

1

Step-by-step explanation:

-3*3=-9+1=-8

I need to find the invalid input in this but I'm having trouble finding it anyone got any ideas?

Answers

The mistake made by the given solution is that it squared the  imaginary letter i to get i² = -1 instead of recognizing i has no square attached to it.letter i to get i² = -1 instead of recognizing i has no square attached to it.

How to simplify complex numbers?

We are given the complex number equation as;

(16 - 3i) + (4 + 2i)

Open the bracket to get;

16 - 3i + 4 + 2i

Collect like terms to get;

(16 + 4) + (2i - 3i)

Simplify to get;

20 + (-i)

= 20 - i

Now, the mistake made by the given solution is that it squared the  imaginary letter i to get i² = -1 instead of recognizing i has no square attached to it.letter i to get i² = -1 instead of recognizing i has no square attached to it.

Read more about Complex Numbers at; https://brainly.com/question/10662770

#SPJ1

Other Questions
Scientists would like to learn more about the seismic activity that occurs on Earths surface. They are set to take a journey to the deepest part of earth. Develop 4 questions they should ask before they take this journey. Be sure to anticipate the factors that will change as they travel from the surface of Earth towards the core. ( giving brainliest) what is the length of segment AB? What is the problem with sodium? What are some other examples of scientific knowledge that must have resulted from indirect evidence? Why might a government intervene in a market economy during times of war? to increase profits to mobilize resources quickly to convert private property to state-owned property to start a communist revolution All atoms try to achieve---------------(minimum energy,stable energy,maximum energy,covalent energy) I need some help with this plz Sea-Going Crocodile vs Jaguar who will win? How do the media affect government? A.) Elected officials count on the media for financial support.B.) Elected officials use the media to communicate with the American people.C.) Elected officials use the media to discourage participation in interest groups.D.) Elected officials count on the media to tell them how well they are doing. Help easy math question!!! number 5 ! help pls, will mark brainliest to whoever answers first Can somebody plz help answer and define the words! (doesnt have to be a very long answer) thanks! WILL MARK BRAINLIEST WHOEVER ANSWERS ALL FIRST :DD Mary read six books in January, four books in February, and eight books in March.Whatwas the average number of books read each month? maria began the school year with $200 in her school lunch account .The amount of money in the account has decreased linearly after 3 months she had $155 in her account . after 5 months ,she had $125 in her account . witch function models the amount of money that maria had in her account at the end of n months . What is the value of x + y + 5 if x = 6 and y = 15? Please I need help ill give u 50 points The United States relies on the Middle East for a large amount of its oil. If MiddleEastern countries raised the price of oil, which of the following would be the mostlikely result?The price of automobiles in the US would double.The US would begin producing most of its own oil.The US would stop trading with Middle Eastern countries.Gasoline price in the US would rise. societies in the northwest and present-day california supported themselves by hunting and gathering, and in some areas developed settled communities supported by the vast resource of the ocean. There are several web pages for fans of your favorite celebrity, but you notice one claims to be the only authentic fan page. Before posting your praises, you shouldA: use logic to determine if the page is authenticB: ask your friends what they thinkC: decide if it's your favorite fan page or notD: see how many page views the page has Approximately how many total ATP equivalents are generated by the complete oxidation of one molecule of acetyl CoA via the citric acid cycle?a) 1.5b) 2.5 c) 10 d) 30