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notsponge [240]
3 years ago
14

Devin buys 12 candy bars for

Mathematics
1 answer:
wolverine [178]3 years ago
8 0
Devin is buying 12 for $12 so for each he bought it was $1. If he’s selling them for the same price he bought them for (each) when he sells all 12 for $1, he will be left off with the same price he started off with. Devin is not making any profit. What i would do is sell them for $1.50, and then after each is sold, the total earnings would be $18.
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If cos0 =1/3<br> then sin0=?
Sidana [21]

Answer:

sin θ = +/- (2√2)/3

Step-by-step explanation:

cos θ  = 1/3

cos²θ  + sin²θ  = 1

(1/3)² + sin²θ  = 1

sin²θ  = 1 - 1/9

√(sin²θ) = +/-√(8/9)

sin θ = +/- (2√2)/3

6 0
4 years ago
John borrowed a certain amount of money from Tebogo at a simple interest rate of 8,7% per year. 
Anestetic [448]

Answer:

Step-by-step explanation:

5 0
3 years ago
Find the domain and range for the absolute value function f(x)=| x+2 |-3
vovangra [49]
F(x) = |x + 2| - 3
   0 = |x + 2| - 3
   0 = x + 2 - 3
   0 = x - 1
+ 1      + 1
    1 = x

Domain: x > 1 and x < 1
Solution Set of the Domain: {x| 1 > x > 1} and {x|x 1 < x < 1} or (1, 1)

f(x) = |x + 2| - 3
f(x) = |0 + 2| - 3
f(x) = |2| - 3
f(x) = 2 - 3
f(x) = -1

Range: x ≤ 3
Solution Set of the Range: {x|x ≤ 3} or (-∞, 3]
4 0
4 years ago
Four friends want to take a vacation together, so each one gets a part-time job. Each person has 8 weeks to save $720 for the va
e-lub [12.9K]

You can use the fact that summing something P times is equal to multiplying that thing with P.

Those who could save the needed amount were:

Option A: A and C

<h3>How to add something P times?</h3>

Let you have to add a value y p times. Then you write it as:

y + y + ...  + y \text{\: (P times)}\\= y \times P

<h3>How to calculate how much each friend earned?</h3>

checking total money each friend earned:

  • Friend A : worked 13 hours per week at $6.95/hour rate.

Since in 1 week, A works 13 hour, thus, in 8 weeks, he works

13 \times 8 = 184 \: \rm hours

Each hour he earns $6.95, thus, for 184 hours, he will earn

6.95 + 6.95 + ... + 6.95 \text{\:(184 times)}\\= 6.95 \times 184 = \$1278.8

Similarly,

  • Friend B: worked 15 hours per work at $5.85/hour rate

B earned 15 \times 8 \times 5.85 = \$702

  • Friend C: worked 18 hours per work at $5.25/hour rate

B earned 18 \times 8 \times 5.25 = \$756

  • Friend D: worked 11 hours per work at $7.80/hour rate

B earned 11 \times 8 \times 7.8 = \$686.4

Only friend A and friend C could earn more than or equal to $750

Thus,

Those who could save the needed amount were:

Option A: A and C

Learn more about multiplication here:

brainly.com/question/520497

8 0
2 years ago
Read 2 more answers
If you put all the flowers together end to end, what would be the total length of all the flowers?
Gekata [30.6K]
1/8 + 3(1/4) + 2(1/2) + 5/8 + 3/4 + 7/8 + 1 =
1/8 + 3/4 + 1 + 5/8 + 3/4 + 7/8 + 1 =
13/8 + 6/4 + 2 =
13/8 + 12/8 + 16/8 =
41/8 =
5 1/8 inches <==
8 0
3 years ago
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