Solve the following system of equations.
– 7x-6v = 15
3x + 5y = -4

Answer:

He would collect 28 cans

Step-by-step explanation:

Ethan = 1/3

84 * 1/3 = 28

Answer:

28 cans were collected by Ethan

Step-by-step explanation:

It says that the total amount of cans collected was 84 cans. Of the 84 total cans, Ethan collected 1/3 of them. To find the number of cans Ethan collected, you would multiply 84 • 1/3. (You could also divide 84 by 3 in this case)

84 • 1/3 = 28

Answer: Mark me Brainliest :)

$80.92

Step-by-step explanation:

Given:

discount : 35%

Original cost : $124.50

Discount:

$124.50 x 35% = 43.575 ⇒ $43.58

Discounted price

$124.50 - 43.58 = $80.92

Answer:

$80.93

Step-by-step explanation:

Answer:

x = 3

Step-by-step explanation:

3x = 2 + 7

3x = 9

x = 3

Answer: Wes made more shots

Step-by-step explanation:

make a probability tree it will really help so much

I think it's 23500, 45300, 2500

Answer:

About $603

Step-by-step explanation:

Given data

The time interval 2005-2020= 15 years

The principal amount spent= ​$290 billion

The rate= 5%

Let us apply the compound interest formula

A=P(1+r)^t

substitute

A=290(1+0.05)^15

A= 290(1.05)^15

A= 290*2.0789

A= $602.881

Hence about $603 will be spent in 2020

Answer:

=−2

Step-by-step explanation:

Answer:

36

Step-by-step explanation:

if there are  these () around a negative number then it makes it even.

Step-by-step explanation:

p/8=13/2

p/8=52/8

p=52

3/13=v/3

9/39=13v/3

v=9/13

Answer:

10 puppies, 5 parrots.

Step-by-step explanation:

Puppies have twice the ammount feet, so it will be double the amount of parrots. 10 twice the amount of 5, so their would be 10 puppies, 5 parrots

Answer:

you weren't clear if we have to solve for x or y so I did both of them. hope this helps!

Step-by-step explanation:

Answer:

The answer is below

Step-by-step explanation:

The question is not complete.

Let us assume that the black square rotates in a circular part of radius 1 inch.

Therefore, in one full rotation the distance covered (θ) is the same as the perimeter of the circular part. Therefore:

θ = 2πr = 2π(1) = 6.28 inch

The time taken to complete one full rotation (t) is:

t = θ / v

t = 6.28 / 2

t = 3.14 seconds

Answer:

8 faces

Step-by-step explanation:

In geometry, the hexagonal prism is a prism with a hexagonal base. This polyhedron has 8 faces, 18 edges, and 12 vertices.

Hope this helps!

Answer:

The third and fifth option are correct too.

Answer:

a. The possible dimensions of the total area are;

The width of the total area is (2·x + 8) inches

The length of the total area is (2·x + 10) inches

b. The dimensions of the photos are as follows;

The length of the photos are 10 inches

The width of the photos are 8 inches

Step-by-step explanation:

a. Given that the area, A = 4·x² + 36·x + 80

We get;

A = 4 × (x² + 9·x + 20) = 4 × (x + 4) × (x + 5) = (2·x + 8)·(2·x + 10)

Therefore, the possible dimensions of the total area (photo + mat) are;

The width of the total area (photo + mat) = (2·x + 8) in.

The length of the total area (photo + mat) = (2·x + 10) in.

b. The dimensions of the photos alone are shorter than the dimensions of the photo and mat combined by 2·x each

Therefore, we have the dimensions of the photos are as follows;

The length of the photo = (2·x + 10) in. - 2·x in. = 10 in.

The width of the photos = (2·x + 8) in. - 2·x in. = 8 in.

Step-by-step explanation:

subtract 5 from 25 and it should look like this

2x=20

divide 2 and your is 10

Answer:

No problem! Well first off, x is 10.

Step-by-step explanation:

So you know that 2 times a certain number, plus 5, is 25. The first step to solving this problem is subtracting 5 from the total (25) to give you 20. This just makes it easier to find x, so you technically don't have to do it. So now, you know that 2 times a certain number equals 20 (because we got rid of the 5). Now, just divide your number (20) by 2, to get that x is 10. Let's check our answer.

20 + 5= 25

25= 25.

Works out!

Please like and mark brainliest!

Hope it helps!

9514 1404 393

Answer:

  $1,322.05

Step-by-step explanation:

The compound interest formula is appropriate.

  A = P(1 +r/n)^(nt) . . . principal P earning annual rate r for t years, compounded n times per year

You have P=1000, r=.07, n=12, t=4, so the balance is ...

  A = $1000(1+.07/12)^(12·4) ≈ $1000(1.322054)

  A = $1,322.05

Jennifer's ending balance is $1,322.05.

Answer:

distance = 10.6

Step-by-step explanation:

A's coords are (5, 6)

D's coords are (-2, -2)

So the total horizontal distance between A and D is:

5 + 2 = 7

...and the total vertical distance is:

6 + 2 = 8

Now use Pythagorean Theorem:

7^2 + 8^2 = distance^2

distance^2 = 49 + 64 = 113

distance = squareroot of 113

distance = 10.6

Answer:

Thing that I do is email the teacher and he or she will give me the answers try it yourself ok

Step-by-step explanation:

Answer:

which no. buddy??.........

Answer:

(1)...C-1

2-A...(2)

3-B...(3)

(4)....7x-6=0

(5)...7+4x

(6)...5x-10

(7)...5x= -5

x= -1

(8)....-3x= -9

x=3

(9)....x=2

(10...559100t+6423000=11000000

t=4577000/559100=8.18

47. 116-(-79)=195

48. 25×100/20=125

49. 14

50. r= 176/2π=28

51. 12x²+4xy-4y²

52 9×25=225

Step-by-step explanation:

1.166-79

2. 20÷100×25

3.2-1÷7

4.176÷2

Answer:

Step-by-step explanation:

[tex]H(t) = 14000(0.8)^{t +3}\\\\ = 14000*(0.8)^{t}*(0.8)^{3}\\\\=14000*(0.8)^{t}*0.512\\\\=7168(0.8)^{t}[/tex]

Answer:

it is 7168(0.8)t

Step-by-step explanation:

hope this helped

Answer:

Calculating Growth Rates. The annual percentage growth rate is simply the percent growth divided by N, the number of years. ... The population of Lane County grew 12 percent between 1980 and 1990 or at an rate of 1.2 percent annually.

Step-by-step explanation:

Answer:

Acute.

Step-by-step explanation:

your welcome:)))))))

Answer:

yes

Step-by-step explanation:

because 7 is equal to 3 so the answer is correct

Answer: 13

Step-by-step explanation:

[tex]66\geq 7x-21[/tex]

add 21 both sides

[tex]87\geq 7x[/tex]

divide both sides by 7

[tex]12.4\geq x[/tex]

So more than 13 cars