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Jobisdone [24]
3 years ago
9

Using proportional reasoning, about how many of 180 seventh grade students in school would like to snorkel

Mathematics
1 answer:
amm18123 years ago
3 0

Answer:

We need some aditional data. For example, the average number of students who like to snorkel in certain population.

Step-by-step explanation:

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Please help!!! Seriously need it ASAP. Perform the indicted operations: 4{8.2+3.7(4.4×8.8 -18.86)}
lions [1.4K]

4{8.2+3.7(4.4×8.8 -18.86)}=

4(8.2+3.7(38.72-18.86))=

4(8.2+(3.7)(19.86))=

4(8.2+73.482)=

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326.728

7 0
2 years ago
Ellie drives 22.5 miles in 45 minutes. If she drove three hours in total at the same rate, how far did she go?
Scilla [17]

Answer:

Ellie drove 90 miles in three hours.

Step-by-step explanation:

6 0
2 years ago
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Hitman42 [59]

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4 0
2 years ago
Read 2 more answers
1. )The function f(x)=12,500(0.87)^x models the value of a car x years after it is purchased.
sweet-ann [11.9K]
1] Given that the value of x has been modeled by f(x)=12500(0.87)^x, then:
the rate of change between years 1 and 5 will be:
rate of change is given by:
[f(b)-f(a)]/(b-a)
thus:
f(1)=12500(0.87)^1=10875
f(5)=12500(0.87)^5=6230.3
rate of change will be:
(6230.3-10875)/(5-1)
=-1161.2
 rate of change in years 11 to 15 will be:
f(11)=12500(0.87)^11=2701.6
f(15)=12500(0.87)^15=1,547.74
thus the rate of change will be:
(1547.74-2701.6)/(15-11)
=-288
dividing the two rates of change we get:
-288/-1161.2
-=1/4
comparing the two rate of change we conclude that:
The average rate of change between years 11 and 15  is about 1/4  the rate between years 1 and 5.
The answer is D]
2] Given that the population of beavers decreases exponentially at the rate of 7.5% per year, the monthly rate will be:
monthly rate=(n/12)
where n is the number of months
=7.5/12
=0.625
This is approximately equal to 0.65%. The correct answer is A. 0.65%

7 0
3 years ago
Paige’s income statement for the month of December is shown. Paige monthly income statement for December. Total wages are 1,850
DedPeter [7]

Answer:

Paige’s net income for December is $950

Step-by-step explanation:

Here in this question, we are interested in calculating Paige’s net income for December

Mathematically;

Net income = Monthly wage - Total Expenses

From the question, monthly wage = $1,850 while the total expenses = $900

Thus, the net income will be ; $1,850 - $900 = $950

6 0
3 years ago
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