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2 years ago

Over five days Nikia ran a total of 10.2

Mathematics

1 answer:

beks73 [17]2 years ago

5 0

Answer:

2 miles

Step-by-step explanation:

10.2 (total amount of miles ran) - 2.2(fifth day) = 8m

8=miles ran in total for the first 4 days

8 miles / 4 days = 2 miles per day for the first 4 days

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Solve for q. a=qb+r What is q equal to? q=a−r−b q=a−r/b q=a/b −r q=a/rb

Mademuasel [1]

The given equation is $a=qb+r$

We need to solve the equation for q.

Value of q:

The value of q can be determined by solving the equation $a=qb+r$ for q.

Thus, subtracting both sides of the equation by r, we get;

$a-r=qb$

Now, dividing both sides of the equation by b, we have;

$\frac{a-r}{b}=\frac{qb}{b}$

Simplifying the terms, we get;

$\frac{a-r}{b}=q$

Therefore, the value of q is $q=\frac{a-r}{b}$

Hence, Option B is the correct answer.

7 0

3 years ago

What is the approximate percent decrease when a fish count goes down from 850 to 500? The percent decrease is approximately 40%.

Korolek [52]

Answer:

<h2>The percent decrease is approximately 40%. </h2>

Step-by-step explanation:

Step one:

given data

initial count of fish= 850

final count of fish= 500

Required

% decrease

Step two:

% decrease= final-initial/initial*100

substitute

% decrease= 850-500/850*100

% decrease=350/850*100

% decrease= 0.41*100

% decrease= 40.1%

The percent decrease is approximately 40%.

7 0

3 years ago

Read 2 more answers

Mary bought 4 gallons of milk for $10.00. Jill bought 2.5 gallons for $6.00.

RoseWind [281]

Step-by-step explanation:

In order to find the better buy, we must find the cheaper unit price or price per gallon. To find the price per gallon, divide the cost by the number of gallons.

Mary

Mary bought 4 gallons for $11.

The price is $11 and the gallons are 4.

Jill

Jill bought 2.5 gallons for $7.25

The price is $7.25 and the gallons are 2.5

Better buy

Mary paid $2.75 per gallon and Jill paid $2.90 per gallon. 2.75 is less than 2.90, so Mary had the better buy.

3 0

2 years ago

Determine the unit price of the candy using the graph below (I’m confused on this)

LiRa [457]

Brand A costs $2 per ounce, B is $1, C is $0.50(?) I think

4 0

3 years ago

22. Use your model to determine when the volume of oil will get down to 500 gallons.

Helen [10]

Answer:

21. y = 75000·0.935^t

22. after 74.6 days

23. y = 27.8112·1.18832^t

24. 18.8% per month

25. 1748

Step-by-step explanation:

22. It is convenient to use the graphing calculator to solve this problem. The number of days is where the exponential curve has the value 500. It is about 74.55 days. (see the first attachment)

23. y = 27.8112·1.18832^t (see the second attachment)

24. The rate of change is the difference between the base of the exponential and 1, often expressed as a percentage. The time period is the units of t.

(1.18832 -1) × 100% ≈ 18.8% . . . . per month

25. Evaluating the function for t=24 gives y ≈ 1748.30425259 ≈ 1748.

_____

Comment on graphing calculator

A graphing calculator can make very short work of problems like these. It is worthwhile to get to know how to use one well.

8 0

3 years ago