-3(x + 4) = (-x - 1)

Answers

Answer 1
Answer:

Answer:

x=-5.5

Step-by-step explanation:

-3(x+4)=(-x-1)

1. Distribute

-3x+(-12)=-x-1

2. Simplify

-3x-12=-x-1

-2x-12=-1

-2x=11

x=-11/2

x=-5.5

Answer 2
Answer:

Answer:

-11/2 or 5.5

Step-by-step explanation:


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Answers

Answer:wg

Step-by-step explanation:

wg

T(t)T, left parenthesis, t, right parenthesis models the temperature (in degrees Celsius) in Windhoek, Namibia when it's ttt hours after midnight on a given day. ttt 666 999 131313 T(t)T(t)T, left parenthesis, t, right parenthesis 191919 252525 313131 When did the temperature increase faster? Choose 1 answer: Choose 1 answer: (Choice A) A Between 6\text{ am}6 am6, start text, space, a, m, end text and 9\text{ am}9 am9, start text, space, a, m, end text (Choice B) B Between 9\text{ am}9 am9, start text, space, a, m, end text and 1\text{ pm}1 pm1, start text, space, p, m, end text (Choice C) C The temperature increased at the same rate over both intervals

Answers

Answer:

Between 6 am and 9 am

Step-by-step explanation:

Answer:

Step-by-step explanation:

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How do you find the perimeter of triangle ABC?

Answers

Alright, so we'll use the Pythagorean Theorem for this one. 
⇒ a²+b²=c² 

The hypotenuse of  a triangle is represented by c² and we're given the values for a and b.  For this triangle, we'll make 15 = a and 20 = b.  Plug this into the equation and we'll have (15)² + (20)² = c ².  This gives us 625 = c².  Solve for c by square rooting both sides of the equation.  √(625) = c.  We now know that c = 25.  To take the perimeter, we add a + b + c ⇒ (15) + (20) + (25) = Perimeter.

-Hope this helps!
do the Pythagorean Theorem - a^2+b^2=c^2

20^2+15^2=c^2
400+225=c^2
625=c^2
sqrt(625)=c
c=25

Add all of the sides up and you get 25+15+20=60

How many sides does a polygon have if the sum of its angle measures is 2700 degrees and how do you find this?

Answers

the\ sum\ of\ angle\ measures\ is\ 2700^0\n\n(n-2)\cdot180^0=2700^0\nn-the\ number\ of\ the\ sides\ of\ the\ polygon\n\nn-2= (2700)/(180) \ \ \ \Rightarrow\ \ \ n-2=15\ \ \ \Rightarrow\ \ \ n=17\n\nAns.\ 17\ sides\ of\ the\ polygon.
The number of angles equal the number of sides


The number of angles calculate: (n-2)x180°

(n-2)x180°=2700°    |divide both sides by 180°

n-2=15    |add 2 to both siedes

n=13

Answer: 13 sides.


Camille uses a 20% off coupon when buying a sweater that costs $47.99. If she also pays 6% sales tax on the purchase, how much does she pay?

Answers

The cost of the sweater is given by the equation A = $ 40.69

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the total cost of the sweater be represented as A

Now , the equation will be

The cost of sweater without discount and sales tax = $ 47.99

The discount percentage = 20 %

The cost of sweater after discount = 47.99 - ( 20/100 ) x 47.99

On simplifying the equation , we get

The cost of sweater after discount = 47.99 - 9.598

The cost of sweater after discount = $ 38.392

Now , the percentage of sales tax = 6 %

The cost of sweater after sales tax = 38.392 + ( 6/100 ) x 38.392

On simplifying the equation , we get

The cost of sweater after sales tax = 38.392 + 2.30352

The cost of sweater after sales tax = $ 40.695

Therefore , the value of A is $ 40.69

Hence , the final cost of the sweater is $ 40.69

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First calculate what the coupon does for Camille
so multiply %20 by the cost or .2(47.99)=9.598 which rounds to  9.60 meaning she still paid $38.39
Then calculate sales tax by multiplying her clearance price by %6 and adding it on the cost
.06(38.39)= 2.3034 which rounds to $2.30 in tax.
Add that onto the clearance price 38.39+2.30=$40.69
So her total cost was $40.69

A DVD club charges nonmembers $20. 50 to purchase a DVD. With a $25 one-time membership fee, members pay $18 per DVD. For what number of DVDs is the cost the same for members and nonmembers on the first purchase? Write an equation that models the situation. Let d represent the number of DVDs. Solve the equation. For what number of DVDs is the cost the same for members and nonmembers’ first purchase from the DVD club?

Answers

A DVD club charges nonmembers $20. 50 to purchase a DVD. Members pay $18 per DVD for a one-time membership cost of $25. The cost is the same for members and nonmembers on the first purchase is 10.

Let's call the number of DVDs "d". For non-members, the cost of purchasing d DVDs is:

Cost for non-members = 20.50d

For members, the cost of purchasing d DVDs is:

Cost for members = 25 + 18d

We want to find the value of d for which the cost is the same for members and non-members. In other words, we want to find the value of d that satisfies the equation:

20.50d = 25 + 18d

To solve for d, we can start by subtracting 18d from both sides of the equation:

2.50d = 25

Then, we can divide both sides by 2.50:

d = 10

Therefore, the cost will be the same for members and non-members on the first purchase if the number of DVDs purchased is 10.

To learn more about cost, refer:-

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