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
asambeis [7]
3 years ago
10

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

ound less than the salmon. What would be the combined cost of 1 pound of salmon and 1 pound of swordfish
Mathematics
1 answer:
julsineya [31]3 years ago
6 0

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

You might be interested in
Find mHK.<br> pls hurry and answer lol
Rashid [163]
It would be mark N? I think
7 0
3 years ago
Read 2 more answers
If n + 10 = 45.5, then what is the value of the expression n - 25?
Citrus2011 [14]

Answer: 90

Step-by-step explanation:

45.5-.5=45

45^2=90

8 0
3 years ago
a cup is 6.4 cm tall, not including the 0.6 cm lip. cups are stacked inside one another. select the function that represents the
Alja [10]

Answer: 20

H(c) = 6.4 + 0.6c

<u>6.4</u> is the constant.

When the height of the cups is <u>18.4</u> the function is:

18.4 = 6.4 + 0.6c

Then, you add <u>6.4</u> from both sides

18.4 - 6.4 + 6.4 = 6.4 + 0.6c - 6.4  + 6.4

Simplify

18.4 = 6.4 + 0.6c

Switch sides

6.4 + 0.6c = 18.4

Multiply both sides by <u>10</u>

6.4 x 10 + 0.6c x 10 = 18.4 x 10

Refine

64 + 6c = 184

Subtract <u>64</u> from both sides

64 + 6c - 64 = 184 - 64

Simplify

6c = 120

Divide both sides by <u>6</u>

6c/6 = 120/6

c = <u>20</u>

8 0
3 years ago
Solve for x. <br> 35x = 21
emmasim [6.3K]
X = 21/35

x = 3/5 

Explanation: divide both sides by 35 and reduce the fraction 21/35 to get 3/5.

7 0
3 years ago
Read 2 more answers
Please help I know that B is wrong because I just took it and it was wrong
svlad2 [7]
If he flipped the coin 100 times and got 50 heads, then the answer would be 0.5 (since 50/100 = 1/2 = 0.5). I think you might be mixing theoretical probability with empirical probability. 

In this case, he got 28 heads out of 75 flips 
so 28/75 = 0.373333... where the 3's repeat forever
This rounds to 0.37

That's why the answer is actually choice A
7 0
3 years ago
Read 2 more answers
Other questions:
  • How did newton know that 1%of 80 is 0.8
    10·1 answer
  • Name three pairs of numbers that have 5 as their gfc (Greatest Common factor). Use each number once in your answer. I really nee
    6·2 answers
  • At Southside Middle School, 20% of the students play an instrument. There are 305 students. How many students play an instrument
    8·1 answer
  • What is 4567+7845= idk what it is please help me lol so what is it????
    8·2 answers
  • Don’t mind the writing. Just trying to see if this is right?
    5·2 answers
  • which of the following equations is the equation of a suitable line of best fit for the data given below {(45,18), (62,13), (72,
    10·1 answer
  • Find the domain and range for f(x)=pi cos(x)
    8·1 answer
  • Help, please answer this!!
    12·2 answers
  •  Which correlation best describes the data below.
    13·1 answer
  • Need answer ASAP
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!