Need help asap! Max points

School bag _ y

book _ x

system:

y+3x=180

y+5x=270

y=180-3x (and we put that instead of 'y' in the second equation)

(180-3x)+5x=270

180+2x=270

2x=90

x=45

so one book costs $45

and school bag:

y+3×45=180

y+135=180

y=180-135

y=45

Answer:

Each book costed 45$.

Step-by-step explanation:

Let x represent the price of a school bag and y represent the price of a book.

we get the following system of equations:

x+3y=180  (equation 1)

x+5y=270 (equation 2)

using equation 1: x=180-3y

then we substitute x in equation 2 in order to find y:

180-3y+5y=270

180+2y=270

2y=270-180=90

y=90/2=45

and we know that y represents the price of a book, so each book costs 45$.

Answer:

954.56 in²

Step-by-step explanation:

Formula: A = 2πrh + 2πr²

Hope this helps!!

**Brainliest would be appreciated**

Answer:

1 tenth and 9 hundreds

Step-by-step explanation:

Ok so this is not a gud explanation but believe me that answer is correct

a tenth is 10% out of a hundred so thats 10/100 and since the 9 hundreds is already there 10/100+ 9/100= 19/100

Hope you have a gud day :)

Answer:

56

Step-by-step explanation:

Answer:

56 containers

Step-by-step explanation:

There are 8 pints in 1 gallon

8 x 7 = 56

Answer:

6n is less than or equal to 42

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

6n ≤ 42

6÷6    42÷6

n ≤ 7

Answer:

angle 2=120°

angle 1=60

Step-by-step explanation:

70+50=120

or

180-(70+50)=60

angles on a straight line add up to 180°

180-60=120

Answer:

Im guessing 252 is the answer, 42 mold spores were found 14 weeks ago and each 7 weeks it trples right? so two 7 weeks fit in 14 weeks so we would multiply 42 x 2 and which gives us 84 multiply that by 3 since it triples every 7 weeks. And there's your answer, btw don't take this for granted my math is rusty (':

Answer:

228.75 inches cubed

Step-by-step explanation:

This is because the formula to find the volume of a rectangular prism is base x height x width. so if you plug in the numbers, 7 5/8 x 12 x 2 1/2, and we get our answer of 228.75 inches cubed or 228.75 in.^3

Answer:

31.5p+955.5=1428

p=15

Step-by-step explanation:

31.5p+955.5=1428

−955.5 = −955.5

Subtract 955.5 from both sides

31.5p=

\,\,472.5

472.5

31.5

31.5p

​ =

31.5

472.5

​Divide both sides by 31.5

p=15

​

The number of equation players the team can bring 15 players to the tournament.

Let's break down the information given in the problem:

Total amount raised: $1428

Cost of renting a bus: $955.50

Budgeted amount per player for meals: $31.50

To determine the number of players the team can bring to the tournament (represented by "p").

The total cost for the bus and meals calculated as follows:

Total Cost = Cost of Bus + (Cost per Player × Number of Players)

Using the given values, we can write this as an equation:

Total Cost = $955.50 + ($31.50 × p)

Now we can set up the equation using the total amount raised:

Total Amount Raised = Total Cost

Substitute the values:

$1428 = $955.50 + ($31.50 × p)

Now, let's solve for "p":

$1428 - $955.50 = $31.50× p

$472.50 = $31.50 × p

To isolate "p," divide both sides by $31.50:

p = $472.50 / $31.50

p = 15

To know more about equation here

https://brainly.com/question/29657983

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Answer:

4. 30 ft

5. 4 m

6. 32 mm

Step-by-step explanation:

diameter= radius x 2

Yes because it is the brainliest answer

Answer:

No

Because you need to half the diameter to fit it into the formula. So you would do 7 divided by 2 to get the radius which is 3.5. Then you do 3.5 x pi

Step-by-step explanation:

Answer:

Initially, as x increases, y is constant.

Afterward, the slope of the graph of the function equals 2 for all x between x = 3 and x = 5.

The slope of the graph equals -1 for x between x = 5 and x = 9.

The greatest value of y is y = 4, and it occurs when x = 5.

Step-by-step explanation:

Initially, the graph of the function is flat. The quantity y remains constant as x increases from x = 0 to x = 3. The linear equation that corresponds to the function in that region is y = 0. The slope is m = 0 because the graph is a horizontal line. The graph of the function starts to increase starting at x = 3. The slope, rise/run, once we solve it, is equal to 2 for when x is between 3 and 5. After x = 5, y starts to decrease as x increases. The slope of the graph between x = 5 and x = 9 is -1. The maximum value of y occurs at the top of the bump in the graph. The coordinates of the top of the bump are (5,4). Therefore, the maximum value is y = 4, and it occurs when x = 5.

I hope this helps and please mark me as brainliest!

Answer:

x = 30'

2x = 60'

3x = 90'

Step-by-step explanation:

2x + 3x + x = 180

6x = 180

6x ÷6 = 180 ÷ 6

x = 30'

therefore

2x = 60"

3x = 90'

hope this will helpful....

Answer:

Given the equation y = -16t^2 + 96t + 3, we know a = -16, b = 96, c = 3.

Let's solve for h in this problem.  

h = -b/2a

h = -(96) / 2(-16)

h = -96 / -32

h = 3 seconds

Now let's add t=3 to our equation:

y = -16t^2 + 96t + 3

y = -16*(3)^2 + 96*(3)+ 3

y = -144 + 288 + 3

We now know that the vertex is (3,147), which means that the ball's maximum height is 147 feet.

Answer:

Step-by-step explanation:

Find the height at   h(0)   and   h(1)

h(0) = 3 ft

h(1) = -16 + 32 + 3 = 19 ft

It takes 1 second to go from 3 feet to 19 feet

  (19-3) ft / 1 sec = 16 ft/sec

Answer:

69ft² (69 square feet)

Step-by-step explanation:

8x7=56ft

6x2=12ft

2x1÷2=1ft

56+12+1=69ft²

Answer:

Option A, 69 square feet

Step-by-step explanation:

Step 1:  Determine the area of the rectangle

[tex]A = l * w[/tex]

[tex]A = 7\ ft * 8\ ft[/tex]

[tex]A = 56\ ft^2[/tex]

Step 2:  Determine the area of the second rectangle

[tex]A = l * w[/tex]

[tex]A = 6\ ft * 2\ ft[/tex]

[tex]A = 12\ ft^2[/tex]

Step 3:  Determine the area of the triangle

[tex]A = \frac{h * b}{2}[/tex]

[tex]A = \frac{(7\ ft - 6\ ft)*2\ ft}{2}[/tex]

[tex]A = \frac{1\ ft * 2\ ft}{2}[/tex]

[tex]A = \frac{2\ ft^2}{2}[/tex]

[tex]A = 1\ ft^2[/tex]

Step 4:  Determine the total area

[tex]A_{total} = 56\ ft^2 + 12\ ft^2 + 1\ ft^2[/tex]

[tex]A_{total}=69\ ft^2[/tex]

Answer:  Option A, 69 square feet

Answer:

51.25

Step-by-step explanation:

The four longest pieces are the four X’s on the farthest right.

These X’s have values of 12.75, 12.75, 12.75, and 13.

12.75 + 12.75 + 12.75 + 13

25.5 + 12.75 + 13

38.25 + 13

51.25

Therefore, my answer is correct.

Answer:

51 1/4 centimeters

Step-by-step explanation:

According to the line plot, the 4 longest pieces of ribbon are :

Total length = Sum of the 4 pieces

Answer:

No, it is not.

Step-by-step explanation:

The line of best fit is a line that runs across a scatter plot of data points and best reflects the connection between them. It must pass through the points on the graph for it to be the line of best fit.

Answer: B. n ÷ 2

Step-by-step explanation: The number on the left side is the one being devided. so to awnser the question, it is N ÷ 2.

Answer:

B. N÷2

Step-by-step explanation:

the left side is ÷ in N÷2

n+93=150

n=57

Answer:

12.56 in²

Step-by-step explanation:

Area = πr²

Substitute for pi.

A = 3.14 × r²

The diameter is 4. We divide the diameter by 2 to get the radius.

4 ÷ 2 = 2

Substitute for the radius.

A = 3.14 × 2²

Solve

A = 3.14 × 4 = 12.56 in²

I hope this helps and please mark me as brainliest!

Answer:

it should be -7

Step-by-step explanation:

-13-2=-15

-15 add 8 = -7

hope this helps.

Answer:

isaiah

Step-by-step explanation:

4*.50=2 dollors

Answer:

Step-by-step explanation:

509/8 is 63.625

480/8 is 60

560/8 is 70

The closest answer to the real value is 480/8 is 60. This is an underestimate.

Answer:

216 cm squared

Step-by-step explanation:

Bottom: a single 6*6=36

4 sides: 6*5=30 each

Triangles 6 by 5. the formula for a triangle means that 2 of the triangles equals a square  

6*5*2=60

36+120+60=216 cm squared

Answer:

61 degrees

Step-by-step explanation:

180-(58+61)=61

Answer: (1/2, -1)

Step-by-step explanation: The coordinates of point S can be found using the midpoint formula for the hypotenuse RT, since S is the midpoint of RT. The midpoint formula is:

Midpoint of RT = ( (x1 + x2)/2 , (y1 + y2)/2 )

Using the coordinates of R and T, we get:

Midpoint of RT = ( (-1 + 2)/2 , (1 - 3)/2 )

= (1/2, -1)

Therefore, the location of point S is (1/2, -1).

Answer:

e= -1/2

Step-by-step explanation:

(4/3) +5/3 = (-6e - 5/3) +5/3

4/3 +5/3  = -6e

(3)/-6 = (-6e)/-6

e = -1/2