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
Alinara [238K]
3 years ago
12

I need help with this and if you don't know please don't answer

Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
6 0

Answer:

18  ft

Step-by-step explanation:

You might be interested in
Rebecca ran 21 miles in 5 hours. If she ran at a constant speed, how many miles did she run in 2 hours? 8.4 miles 42 miles 4.2 m
Sholpan [36]

Answer: 8.4 miles

Step-by-step explanation:

d = rt

Solve for her rate

21 = 5r

r = 21/5

r = 4.2

Solve for if the time is 2 hours and rate (solved previously) is 4.2

d = 4.2*2

d = 8.4

6 0
3 years ago
F(x) = 2x - 3 and f(x) = f'(x), find the value of x.​
Salsk061 [2.6K]

Answer:

x=1

Step-by-step explanation:

According to your typed question,

f(x)=2x-3

Let f(x)=y

y=2x-3

Now,

Interchanging the positions of x and y

x=2y-3

x+3=2y

x+3/2=y

f'(x)=x+3/2

Then,

f(x)=f'(x)

2x-3=x+3/2

2(2x-3)=x+3

4x-3=x+3

4x-x=3+3

3x=3

x=3/3

x=1

According to your image question,

f(x)=x/2x-3

f(x)=f'(x)

Now,

Let y=f(x)

y=x/2x-3

y(2x-3)=x

2xy-3=x

2xy-x=3

x(2y-1)=3

2y-1=3x

2y=3x+1

y=3x+1/2

f'(x)=3x+1/2

Then,

f(x)=f'(x)

x/2x-3=3x+1/2

2x=6xsq+2x-9x+3

2x=6xsq+7x+3

solve for x ok

8 0
3 years ago
Werner's Deli can make 2.2 sandwiches
netineya [11]

Answer:

Hi there!

Your answer is:

66 sandwiches

Step-by-step explanation:

2.2sandwhiches per 1 min

× 30

66 sandwiches per 30 minutes!

Hopefully this helps

7 0
3 years ago
Kira received a $80 gift card for a coffee store. She used it in buying some coffee that cost $8.03 per pound. After buying the
never [62]

Answer:

5 pounds

Step-by-step explanation:

80 - 39.85 = 40.15

40.15 ÷ 8.03

= 5

3 0
2 years ago
16oz=1 pound blank ounces equal 4.5 oz
nevsk [136]
.28125 lb? I did 16/4.5 and it equals 3.5555, then we did 1/3.5555 then we got .28125 lb
Not sure what you mean
3 0
3 years ago
Read 2 more answers
Other questions:
  • What are the zeros of this function?
    11·1 answer
  • Can someone please help mee?
    5·1 answer
  • Marsha’s scores on seven tests were: 82, 78, 77, 93, 85, 91, and 86. What does she need to score on her next test to have an 86
    11·1 answer
  • 5(×+y+4) is equivalent to what
    12·1 answer
  • Find z. Just write the number. Answer should be a whole number. PLS HELP DUE IN 10 MINS PLS
    8·1 answer
  • Which point is located at the coordinates (-1.25, 1) on the grid below?
    12·1 answer
  • 5x+6y+4, 3x+7z+6, and t+6h+2s+5​
    6·1 answer
  • Ebony but a four year treasury note that pay the equivalent of 3.8% simple interest. She invested $3000 more in a 9 year bond e
    9·1 answer
  • If the sides of a parallelogram are increased to twice its original lengths, how much will the perimeter of the new parallelogra
    5·1 answer
  • Evaluatef(2x^5 - 7x^3 + 6)dx
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!