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
ycow [4]
3 years ago
5

Gary has a box of pencils. In the box, 7/21 of the pencils have been sharpened. Select the three fractions that are proportional

to the fraction of sharpened pencils in Gary’s box.
A) 1/3
B) 1/7
C) 12/4
D) 13/39
E) 14/42
F) 21/7
Mathematics
2 answers:
Luda [366]3 years ago
8 0

Answer:

A) 1/3 D) 13/39 E) 14/42

Step-by-step explanation:

hope this helps. brainliest please.

nikitadnepr [17]3 years ago
7 0
A, B, E. A) divide by 3 B)Divide by 7 E) Multiply by 2
You might be interested in
Suppose that the number of drivers who travel between a particular origin and destination during a designated time period has a
andrew11 [14]

Answer:

Step-by-step explanation:

Given that the number of drivers who travel between a particular origin and destination during a designated time period has a Poisson distribution with parameter μ = 20 (suggested in the article "Dynamic Ride Sharing: Theory and Practice"†).

a) P(X\leq 15) = 0.1565=0.157

b) P(X>26) =1-F(26)\\= 1-0.9221\\=0.0779=0.078

c) P(15\leq x\leq 26)\\=F(26)-F(14)\\=0.9221-0.1049\\=0.8172=0.817

d) 2 std dev = 2(20) =40

Hence 2 std deviation means

20-40, 20+40

i.e. (0,60)

P(0

5 0
3 years ago
Need help finding slope, x-intercept, and y-intercept
butalik [34]

Step-by-step explanation:

count the slope, 5 up in 2.5 horizontal steps, slope = 5/2.5 or 2

x intercept is on the graph, 2.5

y intercept is also on the graph, -5

8 0
2 years ago
Read 2 more answers
Melissa buys 2 1/2 pounds of salmon and 1 1/4 pounds of swordfish. She pays a total of $31.25, and the swordfish cost $.20 per p
julsineya [31]

Answer:

The combined cost of 1 pound of salmon and 1 pound of swordfish is $16.66

Step-by-step explanation:

Let us assume the cost of 1 pound salmon = $ m

So the cost of 1 pound of 1 pound swordfish cat = $ ( m - 0.20)

Now, the Amount of salmon purchased  = 2 1/2 pounds

2\frac{1}{2}  = 2 + \frac{1}{2} = 2 + 0.5 = 2.5

So, the amount of salmon purchased = 2.5 pounds

Cost of buying 2.5 pounds = 2.5 x ( 1 pound cost)

= 2.5 ( m) = $ 2.5 m  ...... (1)

Also, the Amount of swordfish purchased  = 1 1/4 pounds

1\frac{1}{4}  = 1 + \frac{1}{4} = 1 + 0.25 = 1.25

So, the amount of swordfish purchased = 1.25 pounds

Cost of buying 1.25 pounds = 1.25 x ( 1 pound cost of swordfish)

= 1.25 ( m - 0.20) = $ 1.25 m - 0.25       .... (2)

Now, the combined cost paid  = $ 31.25

⇒Cost of buying (2.5 pounds salmon  +  1.25 pounds swordfish) = $ 31.25

or, 2.5 m +   1.25 m - 0.25  = 31.35       (from (1) and (2))

or, 3.75 m = 31.60

or, m = 31.60/3.75 =  8.43

⇒ m = $8.43

So, the cost of 1 pound salmon = m = $8.43

and the cost of 1 pound swordfish = m - 0.20 = $8.43 - 0.20 = $ 8.23

Hence, the combined cost  1 pound of salmon and 1 pound of swordfish = $8.43 + $ 8.23 =  $ 16.66

6 0
3 years ago
Scott ran 40 miles in 8 hours. Which function could determine the number of
finlep [7]

Answer:

Pace per mile

12 : 00

min : sec

Speed 0.0833 miles per minute=5 miles per hour

Step-by-step explanation:

THE NUMBER OF ...???

whaats the rest

8 0
2 years ago
Read 2 more answers
How many solutions are there to this equation 7x-3(x-1)=2(2x+3)​
vova2212 [387]

Answer:

there are no answers it is false just did it

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Explain how you can use an array to find partial products for 4x36
    9·1 answer
  • Help on question 11. A) please
    8·1 answer
  • Area=bh/2 <br><br> b=7ft<br> h=5ft <br> plz tell me what you got thz
    14·1 answer
  • The arch of a bridge can be modeled by <img src="https://tex.z-dn.net/?f=y%3D-%5Cfrac%7B1%7D%7B170%7D%28x-225%29%28x%2B225%29" i
    10·2 answers
  • Is f(x)=1/3x+2 linear or exponential
    7·1 answer
  • Please show work, as well (if you can)
    13·1 answer
  • It rained 6.14 inches on Saturday and 4.71 inches on Sunday. How much did it rain on
    14·1 answer
  • Help will give crown
    13·1 answer
  • What is the range of the following set of numbers:<br><br> 50, 61, 85, 104, 69, 84, 101
    5·1 answer
  • Alannah, Colin and Hannah visit the park and collect conkers and acorns.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!