1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
barxatty [35]
3 years ago
11

I couldn’t figure this probably out. Please help

Mathematics
2 answers:
Lesechka [4]3 years ago
6 0

Answer:

Formula = (l + b) x 2= 42 so answer = x=9

Step-by-step explanation:

l =x

b =x+3

( x+x+3) * 2 =42

2x +3 x 2 = 42

2x +3 = 42/2

2x +3 = 21

2x = 21 - 3 =18

x = 18/2

x=9

drek231 [11]3 years ago
4 0

Answer:

x = 9

Step-by-step explanation:

Perimeter of rectangle = 2(l+b) = 42

=> 2(x+3 + x)

=> 2 (2x + 3) = 42

=>  4x + 6 = 42

=> 4x = 42 - 6

=> 4x = 36

=> x = 36/4

=> x = 9

Hope it helps :)

You might be interested in
If a swimmer swims 85.4 yards in 5 minutes, how many meters will he/ she swim in 70 seconds
DaniilM [7]

Distance swam in 5 minutes = 85.4 yards

Since, 1 min = 60 seconds and 1 yard = 0.91 meter

5 minutes = 5 \times 60 = 300 seconds

85.4 yards = 85.4 \times 0.91 = 77.7 meters

So, Distance swam in 300 seconds = 77.7 meters

Now, we will use unitary method to determine the distance swam in 70 seconds.

Distance swam in 1 second = 77.7 \div 300 = 0.26 meter

So, Distance swam in 70 seconds = 70 \times 0.26

= 18.2 meters

Therefore, the swimmer took 70 seconds to cover the distance of 18.2 meters.

6 0
3 years ago
One function has an equation in slope-intercept form: y = x + 5. Another function has an equation in standard form: y + x = 5. E
vlada-n [284]

Without converting the equations to the same form, the property that must be different in the functions is the slope

<h3>How to determine the difference in the properties of the functions?</h3>

From the question, the equations are given as

y = x + 5

y + x = 5


From the question, we understand that:

The equations must not be converted to the same form before the question is solved

The equation of a linear function is represented as

y = mx + c

Where m represents the slope and c represents the y-intercept

When the equation y = mx + c is compared to y = x + 5, we have

Slope, m = 1

y-intercept, c = 5

The equation y = mx + c can be rewritten as

y - mx = c

When the equation y - mx = c is compared to y + x = 5, we have

Slope, m = -1

y-intercept, c = 5

By comparing the properties of the functions, we have

  • The functions have the same y-intercept of 5
  • The functions have the different slopes of 1 and -1

Hence, the different properties of the functions are their slopes

Read more about linear functions at

brainly.com/question/15602982

#SPJ1

7 0
1 year ago
A function follows the rule y = -75 - 5x. When the function's output is 25, the equation is 25 = -75 - 5x. What is the function
svetlana [45]

Answer:

The function input is -20 when the output is 25

Step-by-step explanation:

we have

y=-75-5x

where

y is the dependent variable or output

x is the independent variable or input

If the output is 25

then

y=25

substitute

25=-75-5x

Solve for the function input is the same that solve for x

Isolate the variable x

Adds 5x both sides

25+5x=-75-5x+5x

25+5x=-75

subtract 25 both sides

25+5x-25=-75-25

5x=-100

Divide by 5 both sides

x=-20

therefore

The function input is -20 when the output is 25

4 0
3 years ago
Read 2 more answers
Anyone know what this is?
kipiarov [429]
  • Circumference = 6cm
  • Let the radius be r.
  • Therefore, 2πr = 6 cm
  • Given, height = 8 cm.
  • Therefore, curved surface area of the cylinder = 2πrh
  • = (6 × 8) cm^2
  • = 48 cm^2

<u>Answer</u><u>:</u>

<u>4</u><u>8</u><u> </u><u>cm^</u><u>2</u>

Hope you could understand.

If you have any query, feel free to ask.

5 0
3 years ago
Distance around a shape
sdas [7]
Distance around a shape is called the Perimeter. I hope I've helped in some way, shape or form!
3 0
3 years ago
Other questions:
  • Hey can someone please help me with this one thanks!
    15·1 answer
  • . The temperature on a summer afternoon is 84°F. Define a variable and write an expression to find the temperature after it chan
    7·1 answer
  • Susan's uncle from Japan promised to give her 41 g of gold. The local jewelry exchange will buy gold for $1286 per ounce.
    7·1 answer
  • How to solve the system ?
    8·2 answers
  • Seven consecutive integers are added. The sum is 6 times the greatest of the seven integers .what is the smallest integer
    13·1 answer
  • Erica Nits 18 squares on Monday she knits seven more squares each day from Tuesday through Thursday how many squares does Erica
    15·1 answer
  • Simplify to create an equivalent expression.
    11·2 answers
  • Solve y=5-3x+4y=8
    9·1 answer
  • Which equation can be used to find the solution of (1/4)^y+1=64?
    12·2 answers
  • The points (-2, 6) and (2, r) lie on a line with slope 3. Find the missing coordinate r.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!