help please i dont know what to do​

Help Please I Dont Know What To Do

Answers

Answer 1

okay so for the first one it's 3b-16

but when you see b=8 you would rewrite it as 3×8- 16 and once you do that you should have the answers you do the same thing for the rest of them :)

Answer 2
All you do is replace the a’s and b’s in the expressions with the values they give you.

For example, for 3b - 16, you put 3(8) - 16 because they state that b = 8.

Message me if you need more help

Related Questions

solve the inequality. -1/5c + 1 ≥ -4​

Answers

Answer:

c<=25

Step-by-step explanation:

-1/5c>=-5

*-1         *-1

1/5<=5

*5      *5

c<=25

lets check

-1/5(25) +1>=-4

-5+1>=-4

-4>=-4

its correct :D

A pink gold bracelet weighs 60 g. It is made from 76% gold, 18% copper and 6% aluminium.
a What is the mass of the gold in the bracelet?
b What is the mass of the copper in the bracelet?

Answers

Answer:

m(Au)=45.6 [gr] ; m(Cu)= 10.8 [gr].

Step-by-step explanation:

the masses of gold (Au), copper (Cu) and aluminium (Al) are:

0.76*60=45.6 (gr); 0.18*60=10.8 (gr.) and 0.06*60=3.6 (gr).

Again you don’t need to answer all of them but if you can do some that would be wonderful!

Find the value of y that makes lines u and v parallel,


THANKS !

Answers

Answer:

17)  x=7

18) x= -26

19) x= -8

20) x= 6

Step-by-step explanation:

17) is congruent

18) is supplementary

19) is congruent

20) is congruent

Answer:

Q17. 6x+8=50 (alt angles, u//v)

6x=50-8

=42

x=42÷6

=7

Q18. 80°+x+106°=180° (int angles, u//v)

x+186°=180°

x=180°-186°

=-6

Q19. x+68=60 (vert opp angles)

x=60-68

=-8

Q20. 20x=120°

x=120÷20

=10

Seema is travelling to Spain. She travels a distance of 5,700 km by plane to Edinburgh and then another 2,100 km to Madrid. Both planes fly at an average speed of 900 kmh-1. What is her total flight time in hours and minutes, to the nearest minute?

Answers

The answer is

5700+2100=7800
7800/5700= 1.37 hrs
1 hour 37 minutes

Can you answer these plz?

Answers

Answer: the answer is d

How do you find area with all of the different numbers like this?

Answers

hopefully this helps !

Answer:

split the shape into two different shapes, find the area of both and then add them together. the answer would be : 46 square centimeters.

write a real world problem that can be solved using the distance formula

Answers

A bus traveling at an average rate of 50 kilometers per hour made the trip to town in 6 hours. If it had traveled at 45 kilometers per hour, how many more minutes would it have taken to make the trip?

(The formula for distance problems is: distance = rate × time or

d = r × t)

What is the value of f?

−1/8f−3/4−1/4f=11

Answers

Answer:

equals x cuz x is in definite number

Step-by-step explanation:

Evaluate the expression for x = -2, y = 3, and a = -4

5x-6y-3a ​

Answers

Hey there!

5x - 6y - 3a

= 5(-2) - 6(3) - 3(-4)

= -10 - 18 - 12

= -28 - (-12)

= -28 + 12

= -16

Therefore, your answer is: -16

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

help pls
what is the slope intercept form of (4,0) and (0,5)

Answers

Answer: y = -5/4x+5

Hope this helps!!!

Miguel has $25. He spends $7.75 on a movie ticket, $3.65 for snacks, and $1.75 for bus fare each way.

How much money does Miguel have left?

Miguel has $
left.

Answers

Answer:

He will have $10.10 left !

Step-by-step explanation:

Work in photo !

What is 97 divided by 80257

Answers

0.00120862! Hope this helps.

Someone plz help me :(

Answers

Answer:

A

Step-by-step explanation:

Because those points are bold. So these are the given points

Answer the question and explain how you got what you got please

Answers

I didn’t really find any answers for that

The radius of a circle is 11 millimeters. What is the circle's circumference?

Answers

Answer:

C≈69.12

Step-by-step explanation:

C=2πr=2·π·11≈69.11504

Please help me with this! I really need help!

Answers

Answer:

18

Step-by-step explanation:

PLSSS HELP ME WITH THIS QUESTION!!!!

Answers

Answer:

?

Step-by-step explanation:

I don’t see the question

A worker has job offers from two companies. The information below summarizes the job offer from each company.Company A:Starting salary of $31,000Raise of $3000 each yearCompany B:Starting salary of $38,000Raise of $2000 each yearPart A: Write an equation in terms of n years that can be used to determine the number of years when the salaries would be the same for both companies.Part B: Use the equation you wrote in part A to determine the number of years it would take for the salaries to be the same for both companies. Use mathematics to support your answer.

Answers

Using linear functions, we have that:

A.

For Company A: [tex]S_A(n) = 31000 + 3000n[/tex]

For Company B: [tex]S_B(n) = 38000 + 2000n[/tex]

B. The salaries will be the same after 7 years.

A linear function is given by:

[tex]y = mx + b[/tex]

In which:

m is the slope, which is the rate of change.b is the y-intercept, which is the initial value.

Item a:

For Company A, the salary starts at $31,000, with a raise of $3,000 each year. Thus, [tex]b = 31000, m = 3000[/tex], and the salary after n years is given by:

[tex]S_A(n) = 31000 + 3000n[/tex]

For Company B, the salary starts at $38,000, with a raise of $2,000 each year. Thus, [tex]b = 38000, m = 2000[/tex], and the salary after n years is given by:

[tex]S_B(n) = 38000 + 2000n[/tex]

Item b:

They will be the same after n years, for which:

[tex]S_A(n) = S_B(n)[/tex]

Then

[tex]31000 + 3000n = 38000 + 2000n[/tex]

[tex]1000n = 7000[/tex]

[tex]n = \frac{7000}{1000}[/tex]

[tex]n = 7[/tex]

The salaries will be the same after 7 years.

A similar problem is given at https://brainly.com/question/24282972

AM GIVING BRAINLY IF YOU CAN GIVE ME THE RIGHT ANSWER

Yasmin finds some nickels and pennies under the couch cushions. How many coins
does she have if she has 60 nickels and 120 pennies? How many coins does she have
if she has n nickels and p pennies?


Total coins, 60 nickels and 120 pennies: ____

Total coins, n nickels and p pennies: _____

Answers

Answer:

$1.20 in pennies, $3 in nickels

Step-by-step explanation:

(i fell like im wrong :{ )

How did you get 99 after that

Answers

After what????

Step by step explanation:

Factor completely
[tex]3x²+20x-7[/tex]
Please show all workings

Answers

Answer:

(x + 7)(3x - 1)

Step-by-step explanation:

See the steps below:

3x² + 20x - 7 = 3x² + 21x - x - 7 = 3x(x + 7) - (x + 7) = (x + 7)(3x - 1)
Explanation:-

First Method: (By splitting the middle term)

We have to find p and q such that p+q = 20 and

pq = 3×(-7) = -21

Let us looks for the pair of factors of -21 such that their sum is 20 and product is -21.

20 = 21 - 1 and -21 = 3(-7)

∴ 3x² + 20x - 7 = 3x² + 21x - 1x - 7

= 3x(x + 7) -1(x + 7)

= (x + 7)(3x - 1)

Second method: (Using the factor theorem)

Original price: $12
Mark-up: 45%
What is the selling price?

Answers

Answer:

The selling price is $17.40

Step-by-step explanation:

x = selling price

x = 12 + 0.45(12)

x = 12 + 5.4

x = 17.4

The final selling price is $17.40.

Percentages are percents of a whole. This means that 45% = 0.45. You can use this to your advangage when solving these types of equations.

Answer:

$17.40

Step-by-step explanation

Find what 45% of 12 is.

You can do this by multiplying 0.45 by 12 which is 5.4

Then you just add 5.4 to 12 which gives you 17.4  

The length of a warm is 3.25 inches right as a fraction in simplest form

Answers

Answer:

13/4 inches

Step-by-step explanation:

3.25 inches

325/100 inches

13/4 inches

what is a numerical answer

Answers

Answer:

an answer to a question in number form??

Step-by-step explanation:

The area of a square is 676 square root. what is the perimeter of the square?

Answers

Answer:

the perimeter of the square is 104

Step-by-step explanation:

to find the perimeter of a square we need to use the formula P = 4a

P is perimeter and a is the side of the square

if a is the side and the formula of Area is A = a^2

that means the side of the square is a = 26 because 26 * 26 = 676

now we take 26 and place it in the a spot of the perimeter formula

P = 4 * 26   (P = 104)

can i get brain if this helps and is correct plz and thxs <(^w^)>

Answer:

It's 104

Step-by-step explanation:

[tex] \sqrt{676 = 26} [/tex]Square perimeter formula : P=4×aP=4×aP=4×26P=104

Carlos dropped the phone he had received for his birthday and broke the screen. He knows he has to pay for the replacement himself and does some research to find the lowest cost. He is trying to decide between two stores offering different deals on the same-priced phone.

Answers

Answer:

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

Step-by-step explanation:

what's the question

Determine whether the ordered pair is a solution of the linear equation y = 11r - 4 (0 -4)

Answers

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

Yes, it is a solution.

»»————- ★ ————-««  

Here’s why:  

⸻⸻⸻⸻

I am assuming that 'r' is supposed to be 'x'.

⸻⸻⸻⸻

[tex]y=11r-4\\------------\\\rightarrow -4 = 11(0) - 4\\\\\rightarrow -4 = 0 -4\\\\\rightarrow \boxed{-4=-4}[/tex]

⸻⸻⸻⸻

The ordered pair is a solution. You can also tell that it is a solution because the equation given is in slope-intercept form, and '-4' is in b's spot.

⸻⸻⸻⸻

[tex]y = mx+b[/tex]

⸻⸻⸻⸻

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

Find the slope and y-intercept for a line passing through the following two points, then create a slope intercept equation.
(5,3) and (4,5)

Slope=
Y-intercept=
Slope intercept equation=

Answers

Answer:

Slope = -2

Y-intercept = 13

y = -2x + 13

Step-by-step explanation:

(5-3)/(4-5) = 2/-1 = -2

3 = -2(5) + b

3 = -10 + b

b = 13

y = -2x + 13

[tex]\sf 10\times 10=?[/tex]

Answers

Answer:

100

Step-by-step explanation:

hope it's help you

pls brainliest me:(

Which expression is equivalent to (4√a²b)(3√b)?

a) 2ab√3
b) 3a²b²
c) 12ab
d) 12ab²

Answers

The answer is a. You can do this on a claculator ok

Answer:

A, is close to being correct, I'm not sure if 1 is missing from it, but it should be A, if 1 is missing on purpose then I am wrong.

Step-by-step explanation:

=4ab*3√b

12ab√b is the answer, if it helped, could I get brainiest?

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