Answer:
91 boys
Step-by-step explanation:
Given that the ratio of boys to girls = 7 : 2 = 7x : 2x ( x is a multiplier )
There are 65 more boys than girls , thus
7x = 2x + 65 ( subtract 2x from both sides )
5x = 65 ( divide both sides by 5 )
x = 13
There are 7 × 13 = 91 boys in the group
低于当地人民:或立场上有一些事情了!儿女情长的好了吗我想做出
Answer:
Number of premium tickets sold = 638
Number of regular tickets sold = 552
Step-by-step explanation:
Let number of premium tickets sold be p and number of regular tickets be r.
Total number of seats = 1200
Ticket sales with 10 seats left on, that is
p + r = 1190 ----------------eqn 1
Cost of premium ticket = 30 $
Cost of regular ticket = 20 $
Money collected = 30180 $
Total money collected = 30 p + 20 r = 30180
3p + 2 r = 3018 ----------------eqn 2
eqn 1 x 2
2p + 2r = 2380 --------------------eqn 3
eqn 2 - eqn 3
p = 3018 - 2380 = 638
Substituting in eqn 1
638 + r = 1190
r = 552
Number of premium tickets sold = 638
Number of regular tickets sold = 552
less than half because .5 is half of one
.5 = .50
compare the 2. that's what I do.
.50
.21
forget the decimal. and pretend that 100 = 1
Hope this helped
Answer: 0.49 dollars, which is equivalent to 49 cents
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Work Shown:
Divide the total cost over the number of items to get the unit cost
unit cost = (total cost)/(number of items)
unit cost = (1.47)/(3)
unit cost = 0.49 dollars
unit cost = 49 cents
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Another approach:
3 oranges = 1.47 dollars
3/3 oranges = 1.47/3 dollars
1 orange = 0.49 dollars
1 orange = 49 cents
The unit cost is the cost of 1 item, so the the unit cost is 49 cents per orange.
The unit cost of an orange in this case is calculated by dividing the total cost ($1.47) by the number of units (3), which gives us a unit cost of approximately $0.49.
The unit price can be calculated by taking the total price and dividing it by the number of units. In this case, the total price is $1.47 and there are 3 oranges. So the unit price would be calculated as follows:
$$1.47 divided by 3 = $0.49 (rounded to the nearest cent)
Therefore, the unit cost of an orange is approximately $0.49..
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