which expressions have a sum of -12 right answer only!!
a. -13+(-1 )
b. 2+ (-14 )
c. -5+17
d. -4+(- 8

The simplified fraction of the subtraction -1 3/5 - (-2 7/8) is 51/40.

To subtract -1 3/5 from -2 7/8, we first need to find a common denominator for the fractions.

The common denominator for 5 and 8 is 40.

Converting the mixed numbers to improper fractions:

-1 3/5 = -8/5

-2 7/8 = -23/8

Now,

-8/5 - (-23/8)

To simplify,

-8/5 + 23/8

Now, we can rewrite the fractions with the common denominator:

(-8/5) × (8/8) + (23/8) × (5/5)

Simplifying:

-64/40 + 115/40  = 51/40

Therefore, the simplified fraction of -1 3/5 - (-2 7/8) is 51/40.

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Answer:

24

Step-by-step explanation:

Answer:

I think 96

Step-by-step explanation:

???????????????

Answer:

x= -4

Step-by-step explanation:

−2(4x+4)−3x−2=34

(−2)(4x)+(−2)(4)+−3x+−2=34(Distribute)

−8x+−8+−3x+−2=34

(−8x+−3x)+(−8+−2)=34(Combine Like Terms)

−11x+−10=34

−11x−10=34

−11x−10+10=34+10

−11x=44

−11x /−11  =  44 /−11

x=−4

Answer: y = -2x + 8

Step-by-step explanation: Subtract 2x from both sides to get (y) by itself. 2x is the slope and 8 is the y-intercept. Brainliest please?

Here, we need to find the monthly and the weekly growth rate

The monthly growth rate is 99.33 ounces and the weekly growth rate is 22.9 ounces

Weight at birth = 8 ounces

Weight at one year =75 ounces

1 pound = 16 ounces

75 pounds = 1200 ounces

Additional weight after birth = Weight at one year - Weight at birth

= 1200 ounces - 8 ounces

= 1,192 ounces

There are 12 months in a year

Growth rate per month = Additional weight after birth / 12

= 1,192 / 12

= 99.33 ounces per month

There are 52 weeks in a year

Growth rate per week = Additional weight after birth / 52

= 1,192 / 52

= 22.9 ounces per week

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Answer:

22

Step-by-step explanation:

8y + 12 -22

8(4) + 12 - 22

32 + 12 - 22

44 - 22

22

Answer:

22

Step-by-step explanation:

Answer:

First train 364, second train 355.3

Step-by-step explanation:

Let's me just say

First train = x

Second train = y

Easier to type like that

So

x + y = 719.3

they say " first train is 8.7 mph faster than that of the second train "

Therefore

x = y + 8.7

Now u have these two equations

x + y = 719.3

x = y + 8.7

Now since u know what is x, just put it in your first equation

x + y = 719.3

y + 8.7 + y= 719.3

2y = 710.6

= 355.3

Therefore the speed of the first train is

x + y = 719.3

x + 355.3 = 719.3

x =364

Answer:

11

Step-by-step explanation:

if pq = qr, x+1 = 11+1=12

thus x = 1

Answer:

It will last 0 days. You will need more than 1 bag.

Step-by-step explanation:

25 cups + 12 cups = 37 cups

37 cups is a little more than 2 times the amount of cups in 1 bag.

the correct answer is $660

9514 1404 393

Answer:

  The principal was right. The numbers don't add up.

Step-by-step explanation:

Based on the categorization, the total number of students polled is ...

  290 +300 +270 -80 -70 -60 -2(50) = 550

The number reportedly polled is 500, so the numbers given are inconsistent.

____

Here's how we understand the categorization.

  N(laptop) = N(all three) +N(laptop & tablet) +N(laptop & desktop) +N(laptop only)

  N(tablet) = N(all three) +N(laptop & tablet) +N(desktop & tablet) +N(tablet only)

  N(desktop) = N(all three) +N(laptop & desktop) +N(desktop & tablet) +N(desktop only)

Then the sum N(laptop) +N(tablet) +N(desktop) is ...

  N(L) +N(T) +N(D) = 3N(ltd) +2N(lt) +2N(ld) +2N(td) +N(l) +N(t) +N(d)

where N(L) = number owning a laptop, and N(l) = number owning a laptop only.

Answer:

4-4=1

Step-by-step explanation:

Answer:

The care is 4 years old

Step-by-step explanation:

V = -2000t + 23,000

15000 = -2000t + 23,000

15000 - 23000= -2000t (+ 23,000 - 23000)

- 8000 = -2000t

- 8000/-2000 = -2000t/-2000

t = 4

The names PNM and MPN are perfectly valid. The order of the letters doesn't matter. In fact, there are 6 ways to name this plane if we just use the 3 letters. If we include "plane Z", then there are 7 total ways to name the plane.

For some reason, your teacher wants P to be the third letter as s/he mentioned MNP and NMP. But again, the order doesn't matter.

Step-by-step explanation:

according to the graph, the correct answer is:

possitive : (-1, 2) and (6, oo)

negative : (-oo, -1) and (2, 6)

Answer:

-3/16 makes the equation true

Answer:

-3/16

Step-by-step explanation:

Hope it helps you!

Answer:

Answer:

-5 + 2xy + 4y 2. hope this helps

Step-by-step explanation:

- Zombie

Answer:

2xy+4y^{2} -5

Step-by-step explanation:

Step 1: ((2xy - 5) +  3y2) +  y2

Step 2:  Factorize 2xy + 4y2 - 5

<may i have brainliest please>

Answer:

144 in²

Step-by-step explanation:

Hi! I'm happy to help!

When Jenna bought the milk, it deducted (subtracted) $3.58 from her $20. So, let's subtract that here:

20.00

- 3.58

We have to borrow:

19.9(10)

- 3.58

10-8=2

19.9(10)

- 3.58

    .  2

9-5=4

19.9(10)

- 3.58

    .42

9-3=6

19.9(10)

- 3.58

    6.42

and 1-0=1

19.9(10)

- 3.58

$16.42

So, Jenna would receive $16.42 in change for her $20 bill.

I hope this was helpful, keep learning!

Step-by-step explanation:

t-7

is the equation....

Answer:

2x + h + 3

Step-by-step explanation:

2x + h + 3

Answer:

456 is the number you are looking for.

Step-by-step explanation:

Consecutive numbers are numbers which continuously follow each other in the order from smallest to largest.

Have a nice day!

Step-by-step explanation:

1/4 + 1/2 + ( 3 × 3/4) +( 3×1) + (4 × 1 1/4) + 1 1/2 = 12.5 hours

Answer:

The vertical span or the height which the brace will reach vertically is 16 ft.

Step-by-step explanation:

The diagonal braces in a fire tower will form a right triangle with the horizontal span and height which it will reach vertically.

It is given that,

the length of the brace is [tex]l=20\rm{ft}[/tex]

the horizontal span of the brace is [tex]b=12\rm{ft}[/tex]

Let the height which the brace will reach is [tex]h[/tex].

Now, the brace length will be the hypotenuse of the right triangle and horizontal and vertical span (height) will be the other two sides of the triangle.

So, by using Pythagoras theorem, the vertical span h of the braces will be,

[tex]h^{2}+b^{2}=l^{2}\\h^{2}+12^{2}=20^{2}\\h^{2}=256\\h=16\rm{ft}[/tex]

Therefore, the vertical span or the height which the brace will reach vertically is 16 ft.

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Answer:

4.2

Step-by-step explanation:

3.5 x 1.2 = 4.2

Answer:

3.5 x 1.2 = 4.2

Step-by-step explanation:

Answer:

40

Step-by-step explanation:

Using PEMDAS, we get:

[48 - (19 + 3) ÷ 11] - [36 ÷ (9 - 3)] =

[48 - 22 ÷ 11] - [36 ÷ 6] =

[48 - 2] - [36 ÷ 6] =

46 - 6 =

40

First, let's declare our variables.

x = variable 1

x + 1 = variable 2

x + 2 = variable 3

Now, let's create our expression.

x + x+1 + x+2 = 147

Let's add like terms

3x + 3 = 147

Subtract 3 from both sides

3x = 144

Divide both sides by 3

x = 48

x + 1 = 48 + 1 = 49

x + 2 = 48 + 2 = 50

First, let's declare our variables

d = Dan's money

d + 5 = Julio's money

Let's create an equation to model the problem.

d + d+5 = 19

Simplify the left side.

2d + 5 = 19

Subtract 5 from both sides.

2d = 14

Divide both sides by 2.

d = 7.

Let's plug 7 into our expression to get Julio's money.

d+5 = (7) + 5 = 12

Dan has $7 and Julio has $12

Dan has $7 and Julio has $12.

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Let d represent the amount of money, in dollars, that Dan has.

First, let's consider our variables;

d = Dan's money

d + 5 = Julio's money

Then an equation to model the problem;

d + d+5 = 19

Simplify the left side;

2d + 5 = 19

Subtract 5 from both sides;

2d = 14

Divide both sides by 2;

d = 7.

Let's plug 7 into our expression to get Julio's money,

d+5 = (7) + 5 = 12

Hence, Dan has $7 and Julio has $12

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Answer:

1) domain = { 0,1,2,8}

range = { 3,4,5,7}

2)

a. function because each element of set A is associated with unique element of set B

b. function because each element of set A is associated with unique element of set B

c. not function because same elements are repetated

Answer:

1. Domain: {2,1,0,8}

Range: {5,3,7,4}

2. A

Step-by-step explanation: