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kotykmax [81]
3 years ago
9

Which simplified expression is the difference of (0.5n+0.3) - (0.75n-0.45)

Mathematics
1 answer:
never [62]3 years ago
4 0
The answer is B . your welcome
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The cost of fertilizing a lawn is​ $0.25 per square foot. find the cost to fertilize the triangular lawn whose base is left pare
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To Calculate the cost of <span>The cost of fertilizing, we need to Calculate first the Area of the Triangle.

</span>the Area of the Triangle = 1/2 x base x altitude = 1/2 x (14+√17) x 68 = 524.08 <span>square foot

</span>The cost of fertilizing = the cost of the square foot x the total area = 0.25x524.08 = 131 <span>$</span>
6 0
3 years ago
The drama club sold bags of candy and cookies to raise money for the spring show. Bags of candy cost $5.50 and bags of cookies c
vaieri [72.5K]

Let's assume

the number of bags of candy =x

the number of bags of cookies =y

There were 5 more bags of cookies sold than candy

so, we get

y=x+5

Bags of candy cost $5.50

so, total cost of candy is

=5.50x

bags of cookies cost $3.50

so, total cost of cookies is

=3.50y

so,

total cost = (total cost of candy)+(total cost of cookies)

we get

total cost =5.50x+3.50y

so, we can plug

5.50x+3.50y=53.50

now, we can plug y

5.50x+3.50(x+5)=53.50

5.5x\cdot \:10+3.5\left(x+5\right)\cdot \:10=53.5\cdot \:10

55x+35\left(x+5\right)=535

55x+35x+175=535

90x+175=535

90x+175-175=535-175

90x=360

x=4

now, we can find y

y=x+5

y=4+5

y=9

so,

the number of bags of candy =4

the number of bags of cookies =9............Answer


5 0
3 years ago
Show how to make a ten to solve 13-7
marissa [1.9K]
13-7 = 6 so that means 6 + 4 would make it ten
7 0
3 years ago
Read 2 more answers
An electrical power plant burns 285 barrels of oil each day to
frosja888 [35]

Answer:

11970 barrels of oil

Step-by-step explanation:

1 day use 285 barrels of oil

6 weeks = 6*7 = 42 days

42 days use: 42 * 285 = 11970 barrels of oil

Hope this help you :3

8 0
3 years ago
A backpack costs $18 and has a 7 percent tax. How much will Sheila have to pay for the backpack after tax?
Dmitry_Shevchenko [17]

Answer:

19.26

Step-by-step explanation:

7% of 18 is 1.26

1.26+18=19.26

4 0
3 years ago
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