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DochEvi [55]
3 years ago
11

Help, help help. just give answers

Mathematics
2 answers:
Fynjy0 [20]3 years ago
5 0
To solve this problem, there are a couple things we need to do.  First of all, we need to figure out how much more she's running every day.  On day 1, she ran 3/16 of a mile.  On day 2, she ran 3/8 of a mile.  On day 3, she ran 9/16 of a mile.

How much are we adding each time?  To find that out, we need all of our fractions to have the same denominator so we can compare.  Let's give 3/8 a denominator of 16.  8*2=16.  What you do on one side of the fraction bar, you MUST do to the other: 3*2=6.  So, 3/8 = 6/16.

Day 1: 3/16.  Day 2: 6/16.  Day 3: 9/16.  Now do you see the pattern?  Every day, she runs 3/16 of a mile more.  That's the answer to part 1: 3/16.

So, how long will it take her to get over 1 mile?  Let's continue.  Day 3: 9/16.  Day 4: 9+3=12, so that's 12/16.  Day 5: 15/16.  Day 6: 18/16!  Since the numerator is bigger than the denominator, guess what?  That's more than one mile!!  So on the 6th time she runs, she ran 18/16 miles.  Keep in mind that 18/16 = 9/8 = 1 1/8 miles.

Answers: 3/16; 6th; 1 1/8 (or 9/8)
ohaa [14]3 years ago
4 0
The answers to your questions are: 1st question:3/16 2nd question:6th 3rd question:11/8.
Hope this helps! (:
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viktelen [127]
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671,000,000 / 60 = 11183333.33 miles per minute
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3 years ago
The population of Stark county this year is 7,921 people. Last year the population was 7,547 people. Find the approximate percen
Sholpan [36]

Answer:

Option (C)

Step-by-step explanation:

To determine the population we use the formula,

P_n=P_0(1+r)^{n}

Where P_n = final population

P_0 = Initial population

r = percentage growth

Now we substitute these values in the formula,

7921=7547(1+r)^1

\frac{7921}{7547}=(1+r)

r = 1.0496 - 1

r = 0.0496

r = 0.05

Therefore, percentage growth of the population of Stark county is 5%.

Option (C). will be the answer.

4 0
3 years ago
Find the Simple Interest<br> $700 deposited at an interest rate of 1.5% for 3 years
slega [8]

Answer:

$31.50

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 1.5%/100 = 0.015 per year,

then, solving our equation

I = 700 × 0.015 × 3 = 31.5

I = $ 31.50

The simple interest accumulated

on a principal of $ 700.00

at a rate of 1.5% per year

for 3 years is $ 31.50.

3 0
3 years ago
Courtney works at the local shoe store and receives $150 a week plus 3% of all sales over $1000. This week her sales were $3200.
schepotkina [342]

The equation you would use to find her earning for the week would be:

y=0.03(x-1000)+150

This would mean she made $66 from commissions and $216 total.

6 0
3 years ago
2. Simplify the expression. (x3)(x7)²<br> 1<br> x18<br> x14<br> x126
lisabon 2012 [21]

Step-by-step explanation:

= ( {x}^{3} ) { ({x}^{7} )}^{2}

=  {x}^{3}  \times  {x}^{7 \times 2}

=  {x}^{3}  \times  {x}^{14}

=  {x}^{3 + 14}

=  {x}^{17}

4 0
2 years ago
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