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alexira [117]
3 years ago
9

Which is a composite number 81 61 71 41

Mathematics
1 answer:
Ne4ueva [31]3 years ago
4 0

Answer:

81

Step-by-step explanation:

A composite number has factor more than just one and itself.

Factors of 81=

1, 3, 9, 27, 81

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Jill operates an orange juice stand. On Monday she used 4 bags of oranges. On Tuesday she used 1/2 as many oranges as on Monday.
viktelen [127]
On Monday Jill used four bags, and on Tuesday she used half as many as she did on Monday. Half of 4 is 2, so Jill used 2 bags of oranges on Monday.


Hope this helps :)
7 0
3 years ago
Read 2 more answers
I need help ASAP!! Please explain how to solve the question
lina2011 [118]

Answer:

318

Step-by-step explanation:

Let's divide this shape into 2 triangles & 3 rectangles.

Area of Triangle = 1/2 (bh)

(1/2 (9x6) ) x 2   = 54

Area of Rectangles = (9x11) + (8x11) + (7x11)

= 264

264 + 54 = 318km^2

Answered by g a u t h m a t h

8 0
3 years ago
How do I solve this problem?
Brrunno [24]
A. x=the cost of one lunch. 60.25=5x+3(x-5.25)

b. 60.25=5x+3x-15.75                    60.25+15.75=8x-15.75+15.75

 76=8x                  76/8=8x/8              9.50=x

A lunch is $9.50. If you are not sure, check my answers. Hope this helped.
8 0
4 years ago
Simplify the ratio 12cm:4m
slavikrds [6]

Answer:

3:1

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
How many gallons of pure water should be evaporated from 160 gallons of a solution containing 12% salt
AfilCa [17]

Answer:

66 gallons

Step-by-step explanation:

Given that initially 160 gallons of a solution containing 12% salt.

So, the initial amount of salt = 12% of 160 = 12/100 x 160 = 19.2 gallons.

Let x gallons of water get evaporated so that the remaining solution contains 20% salt.

The remaining amount of solution = 160-x gallons.

As the initial amount of salt is still in the solution which is equal to 20% of the remaining solution, so

19.2 = 20% of (160-x)

\Rightarrow 19.2 = \frac {20}{100}\times (160-x) \\\\\Rightarrow 19.2 = \frac {1}{5}\times (160-x) \\\\\Rightarrow 19.2 \times 5= 160-x \\\\\Rightarrow 96= 160-x \\\\\Rightarrow x= 160-96 \\\\

\Rightarrow x= 66 gallons

Hence, 66 gallons of water must be evaporated to get a 20% salt solution.

6 0
3 years ago
Read 2 more answers
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