y = 2x – 1
x + y = 2

Answer:

the answer is 20 and 5

Step-by-step explanation:

Number of hats is 5 and the number of sweatshirts is 20

The total number of items bought is 25

The total amount is $172.50

Let a represent the number of sweatshirts

Number of hats is 25-a

Cost of sweatshirt= 8x

Cost of hat= 2.50×(25-x)

= 62.50-2.5x

8x + 62.50 - 2.5x-172.50

8x-2.5x+62.50-172.50

5.5x -110

5.5x= 110

x= 110/5.5

= 20

Number of hats= 25-20, = 5

Number of sweatshirts= 20

Please see the link below for more information

https://brainly.com/question/396501?referrer=searchResults

Answer:

4

Step-by-step explanation:

This expression is a difference of squares.

(√3 + i)(√3 - i) = (√3)²-(i)², which is

3 - (-1)

= 3 + 1

= 4

Given:

Mason throws a coin 3 times.

The outcome of each throw is either Heads or Tails.

To find:

The list of all the possible outcomes of the 3 throws.​

Solution:

Let H represents heads and T represents tails.

For each throw we have 2 choices either H or T.

For three throws the total number of possible outcomes is

[tex]2^3=8[/tex]

Now, list the possible outcomes as shown below.

HHH, HHT, HTH, HTT, THH, THT, TTH, TTT

Therefore, the list of 8 possible outcomes is HHH, HHT, HTH, HTT, THH, THT, TTH, TTT.

Answer:

B

Step-by-step explanation:

Answer:

c.

Step-by-step explanation:

Altitude of Equilateral Triangle h = (1/2) * √3 * a. Angles of Equilateral Triangle: A = B = C = 60° Sides of Equilateral Triangle: a = b = c.

Answer:

54

Step-by-step explanation:

1. A = 6 x 9

A = 54

Hope that helps!

Answer:

heyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy

ok i think this is right

Using the SA formula you'll have to substitute in the edge length for s.

SA = 6(312)²

SA = 584064

The surface area is 584,064 feet²

Here the question wants to find the range of function. Your answer is incorrect because you are confusing between range and domain.

Domain is the set of all x-values. That means any values that are part of x are subset of domain itself. We can find domain two ways which are

But we are not talking about domain as we are looking for the range of function.

Range is the set of all y-values. In the relations or ordered pairs (x, y). Our y is the range. Range can also be called Co-Domain or Output. But of course, we are not talking about finding range using relation method. We are going to find range by looking at the graph.

The range starts from minimum value to maximum value. If there is another point between minimum value and maximum, just ignore it.

Here is a diagram or easier way to understand.

[tex] \boxed{minimum} \Longrightarrow \boxed{maximum}[/tex]

From the graph, our minimum is -5 and our maximum is -1. Notice that there is another opened point at -2 which we are supposed to ignore. Because both minimum and maximum are closed dots. Hence, we use >= or <= only.

Therefore the solution should be

[tex] - 5 \leqslant y \leqslant - 1[/tex]

[tex] - 5 \leqslant y \leqslant - 1[/tex]

......the correct answer is A

Answer: the length in the drawing is 1.166666...ft or 14 inches.

Step-by-step explanation:

there are 0.75 ft in 9 inches, and 45/0.75=60. So, to find x you need to divide 70 by 60. :))

If you needed to answer in inches, I found my answer by dividing 45/9 which equals 5, so x=70/5. x=14 inches.

Answer:the other answer will explain all and the answer is 14in I had a quiz on it

Step-by-step explanation:

Answer:

x=1

Step-by-step explanation:

x=1

Answer:

Hello did have actual quiz it looks like i have the same quiz could yopu send that quiz to me thanks

Step-by-step explanation:

Answer:

[tex]angle \: abc = \\ 4x + 2x = 180 \\ 6x = 180 \\ x = 30 \\ angle \: dbc = 2x \\ = 2 \times 30 \\ = 60[/tex]

Answer:

x=−2

Step-by-step explanation:

Simplify both sides of the equation.

3(−x+2x+1)=x−1

Distribute

(3)(−x)+(3)(2x)+(3)(1)=x+−1

−3x+6x+3=x+−1

Combine Like Terms

(−3x+6x)+(3)=x−1

3x+3=x−1

3x+3=x−1

Subtract x from both sides.

3x+3−x=x−1−x

2x+3=−1

Subtract 3 from both sides.

2x+3−3=−1−3

2x=−4

Divide both sides by 2.

2x/2=−4/2

x=-2

Answer:

-2

Step-by-step explanation:

Answer:

I don't understand, please write again

Answer:

Sally rode 4 kilometers more than her brother.

Step-by-step explanation:

1,000 meters = 1 kilometer

So if you convert Sally's meters into kilometers, you get 6 kilometers. John rode 2 kilometers so you do 6 kilometers - 2 kilometers = 4 kilometers.

Now you got your answer!

Hope this helped.

Answer:

hii

shshjsjjsjsjs

hshsh

ssddff

f

f

off

if

f

off

f

f

d

ddf

y

5

e

w

s

xf

Answer:

Exact form: 7/2

decimal form: 3.5

Answer:

198.5 cm²

Step-by-step explanation:

From the figure above we can treat the two semi circles as 1 circle.

Now, the diameter is 10 cm

Thus;

Radius; r = 10/2

r = 5cm

Now, formula for area of a circle is;

A = πr²

Thus;

Area of 2 semi circles = Area of 1 circle = π × 5²

A_circle = 78.54 ≈ 78.5 cm²

When we take out the 2 semi circles, what we have left is a rectangle.

Now, the length of the rectangle will be;

Length; L = 22 - 5 - 5 = 12 cm

*This is because the radius of the semi circle is 5 and distance from the edge of the 22 cm length to the centre of the semi circle is 5 cm

Thus, area of rectangle is given by;

A_rect = LW

W in the image is 10 cm

Thus;

A_rect = 12 × 10

Total area of shape is;

A_total = 120 + 78.5

A_total = 198.5 cm²

Answer:

p = 4

Step-by-step explanation:

9p - 3p - 5 = 19

First you subtract like terms which gives you

6p - 5 = 19

Then you move the constant to the right and change its sign which gives you

6p= 19 + 5

Then calculate your answer which gives you

6p=24

Then divide both sides by 6 which gives you

p=4

Answer:

146.2

Step-by-step explanation:

Answer:

x = -1

Step-by-step explanation:

x - 9.5 = -10.5

x = -10.5 + 9.5

x = -1

Answer: Divide each side by '10'. x2 = 9 Simplifying x2 = 9 Take the square root of each side: x = {-3, 3

Step-by-step explanation:

Answer:

15

Step-by-step explanation:

q-p = 23 - 8

= 15

I hope this is correct