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3 years ago

Help hurry plz. !!!!!!!!!!!!!!!

Mathematics

2 answers:

Kobotan [32]3 years ago

6 0

2 I think .................

Oduvanchick [21]3 years ago

3 0

Answer:

after 6 hours

Step-by-step explanation:

Since no method is specified, we write a table.

After n hours distance car 1 distance car 2

0 0 0

1 40 miles 0

2 80 miles 0

3 120 miles 0

4 160 miles 60 miles

5 200 miles 120 miles

6 240 miles 180 miles

7 280 miles 240 miles

8 320 miles 300 miles

9 360 miles 360 miles

The second car leaves at hour 3 and catches up to the first car at hour 9.

9 - 3 = 6.

Answer: after 6 hours

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Please help. Not sure how to do this one

Sladkaya [172]

The correct answer is: Option 3: $(hofog)(x)=\frac{x-14}{x+4}$

Step-by-step explanation:

Given

$f(x)=\frac{x-6}{x}\\g(x)=x+4\\h(x)=3x-2$

We have to find

$(hofog)(x)$

This will be equal to:

$h(f(g(x)))$

So we have to find the composition of (fog)(x) first

$(fog)(x) = f(g(x))\\=\frac{x+4-6}{x+4}\\=\frac{x-2}{x+4}$

Now,

$(hofog)(x)=h(f(g(x)))\\=3(\frac{x-2}{x+4})-2\\=\frac{3x-6}{x+4}-2\\=\frac{3x-6-2(x+4)}{x+4}\\=\frac{3x-6-2x-8}{x+4}\\=\frac{x-14}{x+4}$

The correct answer is: Option 3: $(hofog)(x)=\frac{x-14}{x+4}$

Keywords: Composition, Functions

Learn more about function composition at:

#LearnwithBrainly

8 0

3 years ago

Julie's savings account has a balance of $57.85 in January. By March, her balance is 4 times as much as her January balance. Bet

sladkih [1.3K]

January . . . $57.85

March . . . . 4 times as much = 4 (57.85) = $231.40

Deposit 78.45 more . . . ($231.40 + 78.45) = $309.85 .

Notice that "interest" is never mentioned anywhere in this problem.
In other words, it doesn't matter whether Julie's savings account is
in a bucket in the basement, a mayonnaise jar on the porch, under
her mattress, or in a bank that pays no interest.

Without interest, $309.85 is what she does have in November, which
is about right for savings accounts in banks these days.

What her balance should be in November is an entirely different subject.

3 0

3 years ago

Read 2 more answers

What are yall having? free points btw

Alchen [17]

Big Mac

Premium McWrap Chicken & Ranch (Grilled)

Chicken McNuggets

Premium Caesar Salad with Crispy Chicken

Bacon, Egg & Cheese Biscuit

World Famous Fries

McCafé Frappé Caramel

McFlurry with OREO® Cookies

5 0

3 years ago

Anyone know this one ?

Vedmedyk [2.9K]

The answer is B i.e. one

4 0

3 years ago

Constance wants to purchase an school jacket. She saw the same jacket at a few stores. Store A had the jacket for 15% off the or

soldi70 [24.7K]

Store A will be the better buy.

The price will be $53.70 after sales tax at store A.

Step-by-step explanation:

Price of Jacket at store A = $59.60

Discount = 15%

Discount Amount = $\frac{15}{100}*59.60\\$

Discount Amount = $0.15*59.60=\$8.94$

Price after discount = Original price - Discount amount

Price after discount = 59.60 - 8.94 = $50.66

Price of Jacket at store B = $50.99

The price at store A becomes less than store B after discount, therefore, buying from store A is better.

Sales tax = 6%

Sales tax amount = $\frac{6}{100}*50.66$

Sales tax amount = $0.06*50.66=\$3.0396$

Price after sales tax = Discount price at store A + Sales tax amount

Price after sales tax = 50.66 + 3.0396 = $53.6996

Rounding off to nearest hundredth;

Price after sales tax = $53.70

The price will be $53.70 after sales tax at store A.

Keywords: percentage, addition

Learn more about percentages at:

#LearnwithBrainly

8 0

2 years ago