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kvv77 [185]
3 years ago
14

John has $20.00 to spend for his mother's birthday. A string of pearls and a pair of pearl earrings costs $25.00. They are on sa

le for 30% off. How much money will John have left?​
Mathematics
1 answer:
Phoenix [80]3 years ago
4 0

Answer:

2.50

Step-by-step explanation:

30% of 25 is 7.50 take that away from 25 gives you 17.50 take that away from 20 gives you 2.50

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In dealing with surface area, what is a net?
Tju [1.3M]

Answer:

the answer is a.

when dealing with surface area, a net is a two-dimensional figure that can be cut out and folded up to make a three-dimensional solid

5 0
3 years ago
Read 2 more answers
Suppose a van gets 22 mi/gal. The distance traveled D(g) is a function of the gallons of gas used
babymother [125]

Answer:

a) Table and graph showed

b) The distance will be 231 miles

c) Yes

Step-by-step explanation:

We know the van gets 22 mi/gal, so the distance D in miles traveled by the van can be expressed as  

D(g)=22g, being g the number of gallons of gas used

a) The graph of the function D and its corresponding table of values is shown below.  

b) If the van used g=10.5 gallons of gas, the distance would be:

D(10.5)=22 x 10.5 = 231 miles

c) The values of g are real in nature because they represent the amount of gas consumed by the van and it can be any real positive number. Being D a linear function of g, it also happens to take positive real values. Then it makes sense to connect the points with lines.

5 0
3 years ago
Yesterday the snow was 2 feet deep in front of archies house. Today,the snow depth dropped to 1.6 feet because the day is so war
pshichka [43]

Answer:

20%

Step-by-step explanation:

becuz 2×.2 = .4

subtract .4 from 2 and it's 1.6 and change the .2 to percentage

3 0
3 years ago
Circumference help what is the approximately circumference of the circle
andrew-mc [135]
I think it is c hope it helps
4 0
3 years ago
Bakery has bought 250 pounds of muffin dough. They want to make waffles or muffins in half-dozen packs out of it. Half a dozen o
Alexus [3.1K]

Answer:

250 batches of muffins and 0 waffles.

Step-by-step explanation:

-1

If we denote the number of batches of muffins as "a" and the number of batches of waffles as "b," we are then supposed to maximize the profit function

P = 2a + 1.5b

subject to the following constraints: a>=0, b>=0, a + (3/4)b <= 250, and 3a + 6b <= 1200. The third constraint can be rewritten as 4a + 3b <= 1000.

Use the simplex method on these coefficients, and you should find the maximum profit to be $500 when a = 250 and b = 0. So, make 250 batches of muffins, no waffles.

You use up all the dough, have 450 minutes left, and have $500 profit, the maximum amount.

6 0
3 years ago
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