Answer:
<u>Mika estimated the sum to be 216; the actual sum is 216.27.</u>
Step-by-step explanation:
Let's find the rounded sum and the actual sum, as follows:
Rounding each number to the nearest whole:
189.27 ⇒ 189
15.8 ⇒ 16
11.2 ⇒ 11
Sum = 189 + 16 + 11
Sum = 216
Actual sum:
Actual sum = 189.27 + 15.8 + 11.2
Actual sum = 216.27
<u>Mika estimated the sum to be 216; the actual sum is 216.27.</u>
Answer:
point S
Step-by-step explanation:
The end point of each ray given is point S, as the definition of the ray states that there is only one end point, and the other continues indefinitely. Technically, if you use all the others as a start point, they also work as rays, but because S is the start point of all lines, S is the safer answer.
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Answer:
B) 25% of her students are in chemistry.
Step-by-step explanation:
There were 0.1, or 10%, of freshmen in chemistry. There were 0.25, or 25%, of sophomores in chemistry. This is a total of 0.1+0.25 = 0.35, or 35%.
This is not 25%.
The first thing you should do for this case is to graph the data you have in the statement to see the relationship between grapes and blueberries.
The function represented by the table is
y = 0.25x
Then, as Mandie is making 15 glasses of fruit salad, we have:
y + x = 15
We have two equations and two unknowns that we must solve.
y = 0.25x
y + x = 15
Resolving
For x:
0.25x + x = 15
1.25x = 15
x = 15 / 1.25 = 12
For y:
y = 0.25x = 0.25 (12) = 3
Answer
The ratio of grapes to blueberries she should use is 12: 3
Answer: 8 minutes, 16 minutes, 24 minutes, 32 minutes
Step-by-step explanation: 12x2=24. 8x2=16. 12x3=36. 8x3=24. 12x4=48. 8x4=32.
