What is 12 -(-3) = and how do you get that answer?

Answers

Answer 1

Answer:

15

Step-by-step explanation:

Step 1:

12 + 3

Answer:

15

Two negative signs cancel out and turns it into addition.

Hope This Helps :)

Answer 2
12-(-3) is 15. When you subtract a negative, it’s the same as adding the absolute value of the number. So 12+3=15

Related Questions

Which expression is equivalent to 5(x - 7)?

Answers

Answer:

5x - 35

Step-by-step explanation:

Apply the distributive property. That means to multiply the number on the outside of the perenthesis with each of the numbers inside the perenthesis.

the quotient of 100 and w

Answers

Answer:

[tex]\frac{100}{w}[/tex]

Step-by-step explanation:

When it asks for the quotient you are dividing/ putting it in a fraction.

Whats 855000 in scientific notation?

Answers

Answer:

8.55x10^5 in scientific notation

Answer:

8.55 × 10^5

Step-by-step explanation:

855000 = 855 × 10³

8.55 × 10² × 10³

8.55 × 10²+³

8.55 × 10^5

Which function describes this table of values?

Answers

Answer:

y = 4/5x

Step-by-step explanation:

We know it's not y = x - 2 because if you plug x into the equation, it works for the first one, but not the second one. Ex: 10 - 2 = 8 but 5 - 2 = 3 not 4.

We also know that it can't be y = -5/4x because if you plug x into that equation, it does not equal y.

y = 4/5x because when you plug x into the equation it works.

TLDR basically you just plug x into the equations.

A delivery person uses a service elevator to bring boxes of books up to an office. The delivery person weighs 150lb and each box of books weighs 40lb. The maximum capacity of the elevator is 1140lb. How many boxes of books can the delivery person bring up at one​ time?

Answers

Answer:

24

Step-by-step explanation:

The delivery person can take 24 boxes of books up the elevator at one time. This was my process:

(1140-150) / 40

990 / 40

24.75

But you cannot have three quarters of a box so the final answer would be 24.

Jillian said √25 is irrational because it is a square root. Why is she wrong

Answers

Square roots are rational and it equals 5 and 5 is rational

Answer:

She is wrong because the answer is 5 and that is rational

Step-by-step explanation:

A dolphin was swimming 28 meters below the ocean's surface. It changed its depth to avoid a predator and ended up 21 meters below the surface.
What was the change in the dolphin's depth?

Answers

Answer:

7 meters

Step-by-step explanation:

Now write an equation that represents the situation. You want to find the change in the dolphin's depth, so subtract its beginning depth from its final depth.

The change in the dolphin's depth is negative 7 meters.

What is Subtraction?

Subtraction of two or more numbers or algebraic expressions is the method of taking away a certain value from a number. This operation is also called difference of numbers.

Subtraction is one of the basic operations in mathematics along with division, multiplication and addition.

Initial depth that Dolphin was swimming = 28 meters

Then the Dolphin changed it's depth to avoid predator.

Final depth that Dolphin was swimming = 21 meters

Change in depth = Final depth - Initial depth

                            = 21 - 28

                            = -7 meters

This implies that depth of the Dolphin decreases with -7 meters.

Hence the change in the Dolphin's depth is -7 meters if the initial depth was 28 meters and final depth was 21 meters.

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8 times of the eight term of an arithmetic progression is equal to 12 times of the twelfth term. find its first term if the common difference is -2 .​

Answers

Answer:

38

Step-by-step explanation:

We can express the 8th term as x and the 12th term as y.

This would mean that 8x=12y

Because the common difference between terms is -2 and term 8 and term 12 are 4 terms apart, this means that the 12th term is 8 less than the 8th term, so x-8=y

Now we can use this to substitute y with x in the first equation. This would give us:

8x=12(x-8)

Which we can expand and solve:

8x=12x-96

-4x=-96

Therefore x=24

This means the 8th term is 24 and the 12th term is 16 (24-8).

To test if this is correct we can do:

8x24=12x16

Which indeed are equal, both sides multiply to 192.

Now that we have our 8th term, we can find the 1st term, which is 7 terms away, therefore we just add 14 to the 8th term 24. (7x2=14)

24+14=38.

The first term is 38.

Hope this helped!

How many seconds are in 4.98 minutes? Round your answer to the nearest tenth (to one decimal point)

Answers

Answer: 298.8 seconds

Step-by-step explanation: 4.98*60=298.8

Answer:

298.8

Step-by-step explanation:

4.98x60=298.8 so you have been understand

Please help me solve this thanks

Answers

Answer:

A

Step-by-step explanation:

let r represent rate and d distance.

Given that r varies directly as d² then the equation relating them is

r = kd² ← k is the constant of variation

To find k use the condition r = 4 when d = 15, then

4 = k × 15² = 225k ( divide both sides by 225 )

k = [tex]\frac{4}{225}[/tex]

r = [tex]\frac{4}{225}[/tex] d²  ← equation of variation

When r = 9, then

9 = [tex]\frac{4}{225}[/tex]d² ( multiply both sides by 225 )

2025 = 4d² ( divide both sides by 4 )

506.25 = d² ( take the square root of both sides )

d = [tex]\sqrt{506.25}[/tex] = 22.5 = 22 [tex]\frac{1}{2}[/tex] → A

What value of x would result in the numerical value of zero in the expression 7+x+(−10) ?

Answers

Answer:

3

Step-by-step explanation:

7 plus three is 10, adding -10 to that equals zero.

The value of x would result in the numerical value of zero in the expression 7+x+(−10) is 3.

Based on the information given, we simply have to find the value of x. Therefore, the value of x from the equation will be:

7 + x + (-10) = 0

Collect like terms

x = 10 - 7

x = 3

Therefore, the value of x would result in the numerical value of zero in the expression 7+x+(−10) will be 3.

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Question 24
The Sugar Sweet Company is going to transport its sugar to market. It will cost $4500 to rent trucks, and it will cost an additional $250 for each ton of sugar
transported.
Let C represent the total cost (in dollars), and let S represent the amount of sugar (in tons) transported. Write an equation relating C to S. Then use this
equation to find the total cost to transport 17 tons of sugar.

Answers

Answer: C=250S+4500

C=250(17) + 4500    

C=4250+4500

C=8750

Step-by-step explanation:

As an equation, 250 would be the slope because it is multiplying by the ton and 4500 is the y intercept. If you substitute in 17 for S, then multiply 17 by 250, you get 4250 then add the 4500 and you get 8750 so if S=17, C=8750

The cost of transporting 17 tons of sugar is $8750.

What is an equation?

An equation is written in the form of variables and constants separated by the operation of multiplication and division,

An equation states that terms in different forms on both sides of the equality sign are equal.

Multiplication and division do not separate the terms of an equation.

The given information can be related as,

C = 250S + 4500.

Now, when tons of sugar is 17 we'll simply replace S with 17.

∴ C = 250(17) + 4500.

C = 4250 + 4500.

C = 8750.

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Multiply the polynomials. (x2 – 4) (x2 + 3x – 5)

Answers

Answer:

[tex] \boxed{ \bold{ \boxed{ \sf{ {x}^{4} + 3 {x}^{3} - 9 {x}^{2} - 12x + 20}}}}[/tex]

Step-by-step explanation:

[tex] \sf{( {x}^{2} - 4)( {x}^{2} + 3x - 5)}[/tex]

Use distributive property

[tex] \dashrightarrow{ \sf{ {x}^{2} ( {x}^{2} + 3x - 5) - 4( {x}^{2} + 3x - 5)}}[/tex]

[tex] \dashrightarrow{ \sf{ {x}^{4} + 3 {x}^{3} - 5 {x}^{2} - 4 {x}^{2} - 12x + 20}}[/tex]

Collect like terms

[tex] \dashrightarrow{ \sf{ {x}^{4} +3 {x}^{3} - 9 {x}^{2} - 12x + 20}}[/tex]

Hope I helped!

Best regards! :D

Please Help!! Will mark brainiest!!

Answers

B is the answer
It’s the one that shows 6 is greater than x. So that’s means x is less than 6 not equal to

The tempature at 5pm is 20°F. The tempature at 10pm is -5°F. How many degrees did the tempature fall?

Answers

Answer:

25 degrees

Step-by-step explanation:

20 - (-5)

negatives  cancel out

20+5 = 25

:D

COMPETE
Answer as a dec
2.8+7.22
DONE

Answers

Answer:

Hi, there my name is 1frogaroni and I will be helping you out today!

Step-by-step explanation:

The answer to your question is 10.02.

2.8+7.22

=2.8+7.22

=10.02

You must simplify. if this helped I would be happy to get brainliest in order for me to rank up.

Have a great day!

In the given diagram, which of the following can you use to prove that triangle ABC is an isosceles triangle? Show the slopes of AB and CD are negative reciprocals. Show that D is the midpoint of AB. Show that CD = AD = DB.

Answers

Answer:

I’ll tell you that the answer is NOT l, ll, and lll

Step-by-step explanation:

Point B is on line segment AC. Given AB = 2x + 10, BC = x, and AC = 5x,
determine the numerical length of AC.

Answers

Answer:

Step-by-step explanation:

the answer is 25 not 5

The numeric value of x will be 25 for the given line segment.

What is a line segment?

A line section that can connect two places is referred to as a segment.

In other words, a line segment is just part of a big line that is straight and going unlimited in both directions.

The line is here! It extends endlessly in both directions and has no beginning or conclusion.

Given the line segment AC

AC = AB + BC

Given,

AB = 2x + 10, BC = x, and AC = 5x,

So,

5x = 2x + 10 + x

5x = 3x + 10

2x = 10

x = 5

So,

AC = 5x

AC = 5(5) = 25 units.

Hence, The numeric value of x will be 25 for the given line segment.

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WILL GIVE BRANLIEST ANSWER ASAP
Find the intersection of the two sets.
{2,3,4,5,7} n{2,4, 6, 8, 10}
{2,4, 10)
{2,4}
{2,3,4,5,6,7,8, 10)

Answers

Answer:

{2, 4}

Step-by-step explanation:

Intersection of given sets would be {2,4}.

Answer:

C) {2,4}

Step-by-step explanation:

C) {2,4}

The union would be all of them.  The intersection are the ones they have in common.

Danny wants to sell his house. He would like to receive $136,000 after deducting the 6% commission due to the real estate agent. What should the selling price for the house be to the nearest dollar?

Answers

Answer:

The selling price of the house is $144,681

Step-by-step explanation:

The computation of the selling price of the house is shown below:

Let us assume the selling price be x

So, the commission would be 0.06x

Now the danny would received

= x - 0.06x

= 0.94x

And, the amount received is $136,000

So equate this value

Like this

0.94x = $136,000

x = [tex]\frac{\$134,000}{0.94}[/tex]

= $144,681

Hence, the selling price of the house is $144,681

At midnight, the temperature was 15°C. Over the next six hours, the temperature dropped 3 degrees each hour. By noon, the temperature increased 12 degrees. A. What was the temperature at 6 a.m.? B. Then what was the temperature at noon?

Answers

Answer:

a)3C b)27C

Step-by-step explanation:

a) 6hours*3degrees=18 degrees

15-18=3C

b)15+12=27C

Solve the following equation 2/3x+6=1/2x+1/4x​

Answers

Answer:

x = -72/17

Step-by-step explanation:

(2/3)*x+(1/2)*x+(1/4)*x+6 = 0

17/12*x+6 = 0 // - 6

17/12*x = -6 // : 17/12

x = -6/17/12

x = -72/17

x = -72/17

The quotient of 24 and x equals 14 minus 2 times x

Answers

Answer:

x = 3, x = 4

Step-by-step explanation:

Given

[tex]\frac{24}{x}[/tex] = 14 - 2x ( multiply through by x , x ≠ 0 )

24 = 14x - 2x² ( subtract 14x - 2x² from both sides )

2x² - 14x + 24 = 0 ( divide through by 2 )

x² - 7x + 12 = 0 ← in standard form

(x - 3)(x - 4) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 3 = 0 ⇒ x = 3

x - 4 = 0 ⇒ x = 4

URGENT: how many integers have an absolute value less than 10π

Answers

Answer:

Step-by-step explanation:

Let's calculate 10 pi.

1 pi is about 3.14.

10 pi should be about 31.4.

-31 to -1 is 31 integers.

1 to 31 is 31 more integers.

0 is 1 integer.

31 + 31 = 62

62 + 1 = 63

Hope this helped!

I'm sorry if I misunderstood.

Please mark Brainliest so others can see.

Good luck and try your best everyday :) !

Which of the following numbers can be classified as a whole number, natural number, integer, and rational number? 0.4. -78 15 0

Answers

Answer:

0.4  since the number is non terminating and non repeating therefore it is irrational number.

-78  A rational number is a number that can be expressed as a fraction where both the numerator and the denominator in the fraction are integers. The denominator in a rational number cannot be zero

15  The number 15 is a rational number. It is an integer and all integers are rational numbers.

0 Yes zero is a rational number. Thus, 0 can be written as, where a/b = 0, where a = 0 and b is any non-zero integer.

help please thank you

Answers

Answer:

a) n/4 - 8

Step-by-step explanation:

A quotient is an answer to a division equation, in this case, is n/4

What percent is represented by the shaded area?

Answers

Answer:

1.91%

Step-by-step explanation:

Which of the following transformations will not produce a congruent image?
A.
rotation
B.
translation
C.
dilation
D.
reflection

Answers

The answer is c I hope this helps

Answer:

Translation, rotation and reflection

Step-by-step explanation:

please brainliest <3

zelly works 30 hours a week at a food market for $8.50 an hour she takes home $7.65 an hour after deductions. what is her rate for deductions? use an equation to model the problem and solve it. use r to represent the rate for her deductions.

Answers

Answer:

Her deduction is 10%, or 0.85

Step-by-step explanation:

How many signs can be made from a piece of
sheet metal that is 4 feet long and 8 feet wide?

Answers

Dang I wish I could answer it for you
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