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leonid [27]
3 years ago
12

Which expression is a way to represent the ratio of a to b?obiaob to a​

Mathematics
1 answer:
mash [69]3 years ago
4 0

Answer:23

Step-by-step explanation:

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9-(-0.87)-0.3 will someone please help me I can’t remember how todo this and my kid needs my help!
kenny6666 [7]

Answer: 9.57

Step-by-step explanation:

do 9 - -0.87 first.

that will give you 9.87

then you subtract 0.3

final answer: 9.57

7 0
1 year ago
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5. If the sales tax rate is 7.25% in California, you're at a store in Los Angeles looking at buying a pair
mr Goodwill [35]

Answer:

$36.17

Step-by-step explanation:

7 0
2 years ago
The perimeter of a rectangle is 4040 yards. what are the dimensions of the rectangle with maximum area?
Ivanshal [37]
Let x be the length and y be the width2x + 2y = 40x + y = 20change that into y = mx + b formy= 20 – x
Area =xy = x (20-x) = 20x - x^2Area=-x^2+20xcomplete the square:Area=-(x^2 – 20x + 100) +100=-(x - 10)^2 + 100This is an calculation of a parabola that opens downward with vertex at (10,100), which means maximum area of 100 happens when x, the length=10)Dimensions of the rectangle with maximum area? 10 yds. by 10 yds., a square.
8 0
3 years ago
A factory needs to produce 1,800 jars of peanut butter on a certain day.
finlep [7]

Answer:

d

Step-by-step explanation:

because in 2 they make 600 and 600 times 3 is 1,800 then do 2 times 3 witch is 6 so 6 hours after 10:30 is 3:30. I hope that makes sense <3

7 0
3 years ago
Three out of every 20 students in ms. jones’ Math class earned a grade of A. What percent of the students earned a grade of A?
erica [24]

Answer:

15%

Step-by-step explanation:

3/20x100=15

6 0
2 years ago
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