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strojnjashka [21]
3 years ago
9

What is the cost of 1 dozen carnations if 30 cost $50.00?

Mathematics
2 answers:
ratelena [41]3 years ago
7 0
30/$50=12(the dozen)/x. x is the cost of a dozen carnations. Cross multiply for 30x=600. Divide both sides by 30 to get x by itself. x=20. $20 per dozen.
prisoha [69]3 years ago
4 0
Let's create a ratio of amount to price

if
30:$50
then
12:x

30/12 = 2.5
50/2.5 = 20

30:$50
12:$20

Another way of looking at it is like this:

If 30, costs $50, then each 3 would cost $5. Four groups of 3 in 12. 4 * $5 = $20

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Some members of the cooking club are making cakes which they will sell at a street fair for $10 apiece. It costs $10 for a booth
Alika [10]

Answer:

The cooking club sales covers the expenditure when 2 piece of cakes are sold.

Step-by-step explanation:

Given:

Selling price of each piece of cake = $10

Cost for booth at fair = $10

Ingredients for each piece of cake = $5

We need to find the number of pieces of cake sold when the sales cover the expenditures.

Solution:

Let the number of pieces be 'x'

So We can say that the point at which the sales cover the expenditures can be calculated as Selling price of each piece of cake multiplied by number of pieces will be equal to Cost for booth at fair plus Ingredients for each piece of cake multiplied number of piece of cakes.

framing in equation form we get;

10x =10+5x

Now Subtracting both side by '5x' using Subtraction property we get;

10-5x=10+5x-5x\\\\5x=10

Now Dividing both side by 5 we get;

\frac{5x}{5}=\frac{10}{5}\\\\x=2

Hence The cooking club sales covers the expenditure when 2 piece of cakes are sold.

7 0
3 years ago
Please help with this pls.
allochka39001 [22]

Answer:

x = 9

(5x9) - 1° = 45 - 1 or 44°

Step-by-step explanation:

the little square indicates the angle is a right angle, measuring 90°

therefore, you can solve for 'x' by creating this equation:

46 + 5x-1 = 90

45 + 5x = 90

5x = 45

x = 9

5 0
2 years ago
The lengths of three line segments are 4 centimeters, 5 centimeters, and 9 centimeters.
kondaur [170]

It is a scalene triangle, all sides are unequal.

7 0
3 years ago
Which fraction is greater than 1/2 Choices: 1/4, 2/6, 3/8, 3/4
SVETLANKA909090 [29]
3/4 is greater than 1/2
5 0
3 years ago
Read 2 more answers
Three bags of sweets weigh 6 3/4 kg. Two of them have the same weight and the third bag is heavier than each of the bags of equa
Softa [21]

Answer: the weight of each bags are 1.85kg, 1.85kg and 3.05 kg

Step-by-step explanation:

Total weight of the three bags is

6 3/4 kg. Converting to decimal, it becomes 6.75 kg.

Two of them have the same weight. Let x represent the bags of equal weight. Their total weight would be 2x. The third bag is heavier than each of the bags of equal weight by 1 1/5 kg. Converting to decimal, it becomes 1.2kg. It means that the weight of the third bag would be

x + 1.2

Therefore, for the three bags,

2x + x + 1.2 = 6.75

3x = 6.75 - 1.2 = 5.55

x = 5.55/3 = 1.85

Weight of the third bag is

1.85 + 1.2 = 3.05kg

8 0
3 years ago
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