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Svetradugi [14.3K]
3 years ago
11

Mary has $15 and she wants to buy some earrings. She picks one pair that costs $7.99 and two pairs that cost $2.59 each. Which s

tatement best describes if an exact total or an approximate total should be calculated?
A.
Mary can round the prices of the earrings to the nearest dollar and then add to estimate if she has enough money.

B.
Mary must add the exact cost of the three pair of earrings so she will know if she has enough money to buy the third pair.
Mathematics
2 answers:
denis23 [38]3 years ago
7 0

Answer:

B

Step-by-step explanation:

Alika [10]3 years ago
3 0
B. Estimation is good sometimes, but not in these cases.
Trust me, it's happened to me b4.
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In a drawer there are 6 black socks,8 white socks,2 red socks, and 4 blue socks. A boy takes one socks from the drawer, without
galina1969 [7]

Answer:

1/5

Step-by-step explanation:

Chance is also referred to as probability

probability = Number of event/Total samples space

If there are 6 black socks,8 white socks,2 red socks, and 4 blue socks in a drawer, the total number of socks will be the sample space

Sample space = 6 + 8 + 2 + 4

Sample space = 20socks

Total number of blue socks is the event

Number of event = 4 blue socks

Chance that the socks is blue = n(E)/n(S)

Chance that the socks is blue = 4/20

Chance that the socks is blue = 1/5

3 0
2 years ago
Evaluate the expression: 5 + (1 + 1)3 × 2.
Free_Kalibri [48]

5 + (1 + 1)3 × 2

5 + (2) 3 x 2

5 + 6 x 2

5 + 12

17

5 0
3 years ago
Read 2 more answers
Plz help no links :)
Ilya [14]

Answer:

C) f(x) = 6.25x + 3

Step-by-step explanation:

In order to know which one of the functions could produce the results in the table we simply need to substitute the number of candy bars for x in the function and solve it to see if it provides the correct total weight shown in the table. If we do this with the functions provided we can see that the only one that provides accurate results would be

f(x) = 6.25x + 3

We can input the # of candies for x and see that it provides the exact results every time as seen in the table.

f(x) = 6.25(1) + 3 = 9.25

f(x) = 6.25(2) + 3 = 15.50

f(x) = 6.25(3) + 3 = 21.75

f(x) = 6.25(4) + 3 = 28

4 0
3 years ago
I GIVEEEE BRAINLILSTT
Olegator [25]

Answer:

ok can i have the brain lets know or when do i get them?

Step-by-step explanation:

1 2 3 45 67 7 8 8 90 0 - 93574756907490 +++++++ .//../2823rg778gq 10900

1000000000000000 :) great JOB u MAD IT

5 0
3 years ago
Read 2 more answers
Find the surface area of a square pyramid with side length 5 ft and slant height 7 ft.
harina [27]

Answer:

99.33ft^2

Step-by-step explanation:

The surface area of a square pyramid is expressed as;

TSA = a²+2a√a²/4 + h²

Given that

a = 5ft

h = 7ft

Substitute

TSA = 5²+2(5)√5²/4 + 7²

TSA = 25+10√25/4 + 49

TSA = 25 + 10√(221/4)

TSA = 25 + 10(√55.25)

TSA = 25 + 10(7.433)

TSA = 25 +  74.33

TSA = 99.33ft^2

Hence the surface area of a square pyramid with side length 5 ft and slant height 7 ft is 99.33ft^2

3 0
3 years ago
Read 2 more answers
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