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NikAS [45]
3 years ago
7

Please help me I got three more I need help with

Mathematics
1 answer:
Softa [21]3 years ago
8 0
..........................

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Alvin's age is three times Elgas age. The sum of their ages is 36. What is Elgas age?
olchik [2.2K]

Answer:

Elgas is 9 years old.

Step-by-step explanation:

Alvin: 3 x Elgas

36: Alvin + Elgas

36 / 4 : 9

Elgas: 9

Alvin: 27

To check: 27 + 9= 36

3 0
3 years ago
Which is the completely factored form of 18x4 – 42x3 + 24x2?
blondinia [14]

Answer:6x2 (3x-4) (x-1)

8 0
3 years ago
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Let’s think about another type of scenario. What if you were told that a bracelet requires 10 beads and 10 minutes to make while
Georgia [21]

Answer:

$425

Step-by-step explanation:

Let x represent the number of bracelets made and let y represent the number of necklace made.

Since the craftsman has 1000 beads to work with, hence:

10x + 20y ≤ 1000    (1)

Also, the craftsman has 1600 minutes, hence:

10x + 40y ≤ 1600   (2)

From ploting equations 1 and 2 on the geogebra online graphing, we can see that the solution to the problem is (40, 30).

Since the bracelet costs $5 and a necklace costs $7.50, hence the maximum revenue is:

Revenue = 5x + 7.5y = 5(40) + 7.5(30) = $425

4 0
3 years ago
A survey shower that 82% of adults need correction for their eyesight. If 18 adults are randomly selected, find the probability
Ksju [112]

Answer: yes.

Step-by-step explanation:

18 people × .82 percent = 14.76

4 0
3 years ago
Paula has a box in the shape of a rectangular prism. The box has a length of 40 inches, a height of 24 inches, and a width of 18
zepelin [54]

Answer:

17,280 in^3 (cubic inches)

Step-by-step explanation:

40(L)x24(H)x18 (W)

6 0
3 years ago
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