1. 12 = x + 3
2. b+0.6= -1
3. a+(-4)= -13
4. x+27= -12
5. a+(-1.2)= -5.5

Answers

Answer 1

Answer: 1. 12=x+3 12-3=9 now try 9+3 that is 12 so x=9
2. b+0.6=-1 -1-0.6=-1.6 -1.6+0.6=-1 b=-1.6
3. a=-9
4. x=-39 I believe
5. a=-4.3

Answer 2

Answer: 1. x = 9
2. b = -1.6
3. a= -9
4. x = -39
5. a = -4.3

Related Questions

How do you evaluate an expression?
Brainliest to whoever helps with step by step!!!
What is the HCF of 2 x y and 6 x y?
A baby weighed 3.2 kg at birth. She gained 0.17 kg per week. She now weighs 5.75 kg. How old is she now?
what is the longest flagpole (in whole feet) that could be shipped in a box that measures 2ft by 2ft by 12ft

The expression 3^2*3^3*3^4 is equivalent to?
Show all your work please

Answers

Cool! So OK I'll take you through it.
You just need to take everything 1 step at a time, as you might already know.

First
3 to the second is 9

Second
The first part included like this 9*(3 to the third) which is 243

Third
The second part is included into the question like 243*(3 to the fourth) which is 243*81

Fourth
243*81 = 19,683

Your Answer
(3^2)*(3^3)*3^4) = 19,693

Hope That Helps and Correct Me If I'm Wrong!

Answer:

19,683

Step-by-step explanation:

3^2 is equal to (3*3) which equals 9 since the base is being multiplied by itself 2 times.

so lets work this out

3^2= 9

3^3=27

3^4=81

you multiply 27 * 9 which equals 243

then, multiply 243 by 81 which equals 19,683!!!

2 1/2 divided by 1 2/6

Answers

Answer:

The answer is 8/9.

Step-by-step explanation:

Turn 2 1/2 in to 3/2 and turn 1 1/3 in to 4/3 then turn 3/2 int 2/3 and multiply 2/3 by 4/3 and you get 8/9.

Hope this helped. have a nice day!

Can i have brainlyest so i can get to the next rank?

Verify 2+2cot^2x=2cotxsecxcscx

Answers

$2+2\cot^2x=2\cot x\sec x\csc x\n\nL=2(1+\cot^2x)=2\left(1+(\cos^2x)/(\sin^2x)\right)=2\left((\sin^2x)/(\sin^2x)+(\cos^2x)/(\sin^2x)\right)\n\n=2\left((\sin^2x+\cos^2x)/(\sin^2x)\right)=2\left((1)/(\sin^2x)\right)=(2)/(\sin^2x)\n\nR=2\left((\cos x)/(\sin x)\right)\left((1)/(\cos x)\right)\left((1)/(\sin x)\right)=2\left((1)/(\sin x)\right)\left((1)/(1)\right)\left((1)/(\sin x)\right)\n\n=2\left((1)/(\sin^2x)\right)=(2)/(\sin^2x)$

$\boxed{L=R}$

$Used:\n\n\cot x=(\cos x)/(\sin x)\n\n\sin^2x+\cos^2x=1\n\n\sec x=(1)/(\cos x)\n\n\csc x=(1)/(\sin x)$

What is the answer to 7/10 of 2.5 m equals how many centimetres

Answers

think of it this way
7/10= ?/2.5
the easiest way to do this is to cross multiply and divide
2.5*7/10
=17.5/10
=1.75 m

But we are looking for cm and 1 m is the same as 100 cm do we just multiply
1.75 x 100
=175 cm

olivia has 18 marbles ,mason has 24 marbles,nia has 63 marbles,and eric has 75 marbles. each person packaged their marbles in groups of 9 after the marbles are packaged,who will have marbles left over

Answers

Answer:

Mason's and Eric's

Step-by-step explanation:

We are given that:

Olivia has 18 marbles ,Mason has 24 marbles,Nia has 63 marbles,and Eric has 75 marbles.

Each person packed their marbles in groups of 9.

We have to find who will have marbles left over.

Olivia has 18 marbles which can be packed as (9+9=18)

Mason has 24 marbles which can be packed as (9+9=18 and 6 will be left unpacked)

Nia has 63 marbles which can be packed as (9+9+9+9+9+9+9=63)

and Eric has 75 marbles which can be packed as (9+9+9+9+9+9+9+9=72 and 3 will be left unpacked)

Hence, Mason's and Eric's marbles are left unpacked

Mason will have 6 left over Eric will have 3 left over.

Oliva= 9 +9 = 18 ( no left over)
Mason= 9+9=18+6 =24 ( 6 left over)
Nia= 9+9+9+9+9+9+9=63 (no left over)
Eric= 9+9+9+9+9+9+9+9=72+3=75 (3 left over)

A work crew of 3 people requires 3 weeks and 2 days to do a certain job. How long would it take a work crew of 4 people to do the same job if each person of both crews works at the same rate as each of the others. [Note: each week contains six work days]Thanks for the help!

Answers

It would take a work crew of 4 people approximately 5 days and 18 hours to complete the same job if each person in both crews works at the same rate as each other.

To solve this problem, we can start by calculating the total work done by the original work crew of 3 people in terms of "work-weeks." We know that they require 3 weeks and 2 days to complete the job.

1 week = 7 days

So, 3 weeks and 2 days can be converted to days as follows:

3 weeks + 2 days = 3 weeks + (2/7) weeks

≈ 3 weeks + 0.2857 weeks

≈ 3.2857 weeks

Now, we know that the original work crew of 3 people completes the job in 3.2857 work-weeks.

Next, we can calculate the amount of work done by each person of the original crew per work-week:

Work done by 1 person in 1 week = 1/3 of the total work (as there are 3 people)

Work done by 1 person in 1 work-week ≈ 1/3.2857

Now, we want to find out how much work a single person of the new work crew of 4 people can do in 1 work-week. Since each person in both crews works at the same rate, the work done per person per week will be the same.

Work done by 1 person in 1 work-week ≈ 1/3.2857 ≈ 0.3043

Now, we know that a single person from the new crew can complete approximately 0.3043 of the total job in one work-week.

Finally, we want to find out how long it will take for the new work crew of 4 people to complete the entire job. Let's denote the time in weeks as "x."

Total work done by the new crew of 4 people = 4 people * x weeks * 0.3043 work done per person in 1 week

Total work done by the new crew of 4 people = 1 job (as they will complete the entire job)

So, we have the equation:

4x * 0.3043 = 1

Now, solve for "x":

x ≈ 1 / (4 * 0.3043)

x ≈ 0.8225

Therefore, it would take a work crew of 4 people approximately 0.8225 weeks to do the same job. To convert this into days:

0.8225 weeks * 7 days/week ≈ 5.7575 days

So, it would take a work crew of 4 people approximately 5 days and 18 hours to complete the same job if each person in both crews works at the same rate as each other.

For more details of work crew:

brainly.com/question/20323478

#SPJ2

20 days per 3 people for 4 people

20/3 * 4 = 26 & 2/3 days

Other Questions

A bike path is 6 3/4 What whole number is closest to 6 3/4

you have a 4x6 photo of you and your friend. You order a 5x7 print of the photo. Is the new photo similar to the original?

25 tens equal how much ? also what does 63 tens equal?

2dimensional shapes that had 8angles in all