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
Serhud [2]
3 years ago
9

The width of a rectangular flower shop is 20 feet less than twice the length. The perimeter is more than 70 feet. Which inequali

ty can be used to find a possible length x of the shop in feet?
A. x+ (2x - 20) > 70
B. 2x + 2(2x - 20) > 70
C. x + (x - 20) > 70
D 2x + 2(x - 20) >70
Mathematics
1 answer:
Schach [20]3 years ago
7 0

Answer:

what is it

Step-by-step explanation:

You might be interested in
2x+30=5x+9 Solve for x<br> O 6<br> 0 -7<br> O -6<br> What’s the answer please?
Maksim231197 [3]

Answer:

7

Step-by-step explanation:

get the x on the same side.

subtract 2x from both sides

30=3x+9

then get the variables on one side by themselves. subtract 9 from both sides.

21=3x

now divide by 3 on both sides.

there's your answer.

4 0
2 years ago
Read 2 more answers
8n - 24 = -2 (1 - 3n) + 2n
ICE Princess25 [194]

Answer:

n=-11

Step-by-step explana

4 0
3 years ago
Read 2 more answers
4×____×1=12 ?=____. please help me solve this question​
Triss [41]

Answer:

4 x 3 x 1 = 12

12 = 12

Step-by-step explanation:

I used a calculator, pls let me know if im incorrect

8 0
3 years ago
If f(x)=5x+a and f-1(10)=-1, find a
zhenek [66]

Answer:

15

Step-by-step explanation:

Given the function

f(x)=5x+a

and f^{-1} (10)=-1(f^{-1} \text{is the inverse function of f})

let f(x)=y

Substitute in f(x)

y=5x+a\\y-a=5x\\x=\frac{y-a}{5}

From the definition inverse function

if f(x)=y    ⇒   f^{-1} (y)=x

Substitute this in the above expression

f^{-1} (y)=\frac{y-a}{5}

Substitute y=10

⇒

f^{-1} (10)=\frac{10-a}{5}\\-1=\frac{10-a}{5}\\-5=10-a\\a=10+5\\a=15

Therefore a=15

4 0
3 years ago
Half-life of Po-210 is 140 days. If the initial mass of the sample is 5
Anna35 [415]

Answer:

0.625kg

Step-by-step explanation:

we are given half-life of PO-210 and the initial mass

we want to figure out the remaining mass <u>after</u><u> </u><u>4</u><u>2</u><u>0</u><u> </u><u>days</u><u> </u>

in order to solve so we can consider the half-life formula given by

\displaystyle f(t) = a {0.5}^{t/T}

where:

  • f(t) is the remaining quantity of a substance after time t has elapsed.
  • a is the initial quantity of this substance.
  • T is the half-life

since it halves every 140 days our T is 140 and t is 420. as the initial mass of the sample is 5 our a is 5

thus substitute:

\displaystyle f(420)=5\cdot{0.5}^{420/140}

reduce fraction:

\displaystyle f(420)=5\cdot{0.5}^{3}

By using calculator we acquire:

\displaystyle f(420)=0.625

hence, the remaining sample after 420 days is 0.625 kg

4 0
3 years ago
Other questions:
  • On a map, 1 cm represents 30 km. Two cities on the map are 2.3 cm apart.
    9·1 answer
  • Will give brainliest whoever answers first
    5·1 answer
  • If LN=12x+16 what is the length of LN in units
    13·1 answer
  • Helppppppppppp and explain
    8·1 answer
  • Can someone please help me i don’t get this at all!?
    7·1 answer
  • Pls help! question is on picture, will mark brainlyest if its right
    9·1 answer
  • A standard-size volleyball court has an area of 1,800 square feet. The length of the court is 60 feet. What is the width of the
    6·1 answer
  • What is the sum of 2 1/9+(-2/9) +3 5/9
    9·2 answers
  • Daniels garage is 8ft long by 10 ft wide. His living room is twice as long and twice as wide as his garage. Daniels house is 3 t
    15·1 answer
  • .
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!