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Brrunno [24]
2 years ago
12

Nancy’s nut store sells peanuts for $2 per pound and cashews for $10 per pound. The store sells a peanut - cashew mixture for $7

per pound. How many pounds of peanuts and how many pounds of cashews should be used to create 40 pounds of the mixture? I’m
Mathematics
1 answer:
Gelneren [198K]2 years ago
5 0

9514 1404 393

Answer:

  • 25 pounds cashews
  • 15 pounds peanuts

Step-by-step explanation:

Let c represent the number of pounds of cashews in the mix. Then 40-c is the number of pounds of peanuts. The total cost of the mix is ...

  10c +2(40 -c) = 7(40)

  8c +80 = 280 . . . . simplify

  c +10 = 35 . . . . . . . divide by 8

  c = 25 . . . . . . . . . . subtract 10

  40-c = 40-25 = 15 . . . . pounds of peanuts

25 pounds of cashews and 15 pounds of peanuts should be used in the mix.

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Can anyone please help!!!
quester [9]

Answer:

Question 9

(a) The distance, Jalaj walks in one day is 4.4 km

(b) The amount Jalaj raises after walking for 22 km at the end of the 5 days is $8

Question 10

(b) The difference between the largest and smallest areas is 2,400 m²

Step-by-step explanation:

Question 9

(a) The distance Jalaj walks in 5 days = 22 km

Whereby Jalaj walks equal distance every day, we have;

The distance, Jalaj walks in one day = 22 km/5 days = 4.4 km/day

The distance, Jalaj walks in one day = 4.4 km

(b) The amount he raises for every kilometer he walks = $1.60

The amount he raises after walking for 22 km at the end of the 5 days = 5 × $1.60  = $8

Question 10

(b) The given side length of the square = 120 meters to the nearest 10 meters

Therefore;

The maximum dimension for the side length of the square = 120 + 10/2 = 125

The largest possible area of the square, A_l = 125 m × 125 m = 15,625 m²

The minimum dimension for the side length of the square = 120 m - 10 m/2 = 115 m

The smallest possible area of the square, A_s = 115 m × 115 m = 13,225 m².

The difference between the largest and smallest areas, A_l - A_s = 15,625 - 13,225 = 2,400 m².

8 0
2 years ago
Please help me thank you
Andreas93 [3]

Answer:

<em><u>1.c</u></em>

<em><u>2.b</u></em>

<em><u>3.a</u></em>

<em><u>4.d</u></em>

<em><u>5.c</u></em>

Step-by-step explanation:

<em><u>please click the heart and rate excellent and brainleist to </u></em><em><u>☻</u></em><em><u>❤</u></em><em><u>☺️</u></em><em><u>☺️</u></em><em><u>❤</u></em><em><u>☻</u></em>

5 0
3 years ago
Evaluate the expression described below if the number is 4.
True [87]

Answer:

A. 0

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Out of 32 students in a class, 5 said they ride their bikes to school. based on these results,how many of 800 students in the sc
Colt1911 [192]
Do a proportion.
5/32= x/800
Cross multiply and divide
800 x 5= 4,000
4,000 divided by 32= 125
So answer is 125 students
6 0
3 years ago
Use the Law of Cosines to find the missing angle.<br><br> Find m∠A to the nearest tenth of a degree.
Savatey [412]

Firstly, we can look at our givens,

a = 17

b = 22

c = 30

And we are looking for m∠A

a^2=b^2 +c^2 -2bc (cosA) Is the Law of Cosines. Now we can solve for our unknown, m∠A. This will give us

A = cos^{-1} (\frac{-a^2+b^2+c^2}{2bc})

Now we can substitute in our given variables.

A= cos^{-1} (\frac{-(17^2)+27^2+30^2}{2(27)(30)} )

Then we can plug this into our calculator which will give us

34.19185257 degrees

Now we just have to round to the nearest tenth

This means that the answer is 34.2 degrees

8 0
3 years ago
Read 2 more answers
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