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nataly862011 [7]
3 years ago
10

Sara bought 4 pounds

Mathematics
2 answers:
tatiyna3 years ago
5 0

Answer:

12.8

Step-by-step explanation:

Its proportions: 1 pound equals 3.20, 4 poundes equals x.

3.20 (cost per pound) x 4 (how many pounds) = 12.8 (answer)

Roman55 [17]3 years ago
3 0

Answer:

$12.80

Step-by-step explanation:

Sara bought 4 pounds of coffee.

Each pound (lb) costs $3.20

To find the total cost, multiply the cost per pound ($3.20) with the amount of pounds Sara is going to buy (4):

4 x 3.20 = $12.80

$12.80 would be the total cost before tax.

~

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Step-by-step explanation:

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2 years ago
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7 0
3 years ago
To buy a car, Danny borrowed $16000 for 3 years at an annual simple interest rate of 9%. if it takes him 3 full years to pay off
Marat540 [252]

Answer:

$4,320

Step-by-step explanation:

I equals PRT. I is the interest. P is the principal, amount borrowed. R is the rate, percent. T is the amount of time in years. Principal in this is 16,000. Rate is 9%, or 0.09. Time is 3 years. So 16,000 times 0.09 times 3 equals 4,320. That is the interest.

4 0
3 years ago
Read 2 more answers
hello! I’m very confused on this question, I want to know if my format is good? I currently have x^2-14x=16 Am I on the right tr
yulyashka [42]

Answer:

according to me

Step-by-step explanation:

yes u r correct

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3 0
3 years ago
The figure shown is a triangular prism. How much would it cost to cover the bases and the other three faces with foil that costs
Mice21 [21]

the complete question in the attached figure

<span>we have to find the surface area first</span>

<span>the area of the base is  A1------- > 5*2=10 ft</span>²

A2 (area of two rectangles faces)---------- > 2*3+2*4=14 ft²

A3 (area of the two triangles faces)

base of triangle------------ > 5---------- > (x)+(x-5)

x²+h²=3²    ------------ > h²=9-x²

(5-x)²+h²=4²----------- > h²=16-(5-x)²

9-x²=16-(5-x)²-------------- >9-x²=16-25-10x-x²----------------- > x=1.8

h²=9-(1.8)²------------ > h=2.4 ft

A3= (5*2.4)*2/2=12 ft²

the surface area total=A1+A2+A3=10+14+12=36 ft²

if $0.22 ------------------------ > 1 ft²

X----------------------------------> 36 ft²

X=36*.22=$7.92

the answer is $7.92

4 0
3 years ago
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