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3 years ago

Naomi used 2/3 gallon of gas to drive 15^1/5 miles.At this rate how many miles can naomi car travel per gallon

Mathematics

1 answer:

Rama09 [41]3 years ago

5 0

Answer:

22 4/5 miles

Step-by-step explanation:

miles per gallon = total miles / total gallons used

$15\frac{1}{5}$ ÷ $\frac{2}{3}$

convert the mixed fraction to an improper fraction

$\frac{76}{5}$ × $\frac{3}{2}$ = $\frac{114}{5}$ = 22 4/5 miles

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Factor completely 5x2 − 50x + 120.

BartSMP [9]

Answer:

Step-by-step explanation:

$\bold{Q1}\\\\5x^2-50x+120=5(x^2-10x+24)=5(x^2-6x-4x+24)\\\\=5\bigg(x(x-6)-4(x-6)\bigg)=5(x-6)(x-4)\\\\\bold{Q2}\\\\64x^2-1=(8x)^2-1^2=(8x-1)(8x+1)\\\\\text{Used}\ a^2-b^2=(a-b)(a+b)$

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3 years ago

Read 2 more answers

The value of a rare baseball card A appreciated by 20 percent over a five year period; over the next five years, the value plumm

lbvjy [14]

<h2>Answer:</h2>

<em><u>Percent value of A with respect to Percent value of B is,</u></em>

$30\%$

<h2>Step-by-step explanation:</h2>

In the question,

Let us say the value of the Baseball card A and B initially is = 100x

So, for Baseball card A in first 5 years percent increase = 20%

So,

Value after 5 years = 100x + 20% of 100x = 120x

<u>After 5 more years,</u>

Percent decrease = 50%

So,

<u>Value at the end of 10 years = 120x - 50% of 120x = 60x</u>

Now,

For Baseball card B, Percent increase in 10 years = 100%

So,

<u>Value of card B = 100x + 100% of 100x = 200x</u>

So,

<em><u>Percent value of A with respect to Percent value of B is,</u></em>

$\frac{60x}{200x}\times 100=30\%$

7 0

3 years ago

Please help me with this brainly

padilas [110]

it's C because the floor area is 120 square feet and the walls are 8 feet so if you multiply 120 × 8 you get 960.

8 0

3 years ago

FrozenT [24]

Answer:

Haha proofs are an interesting thing. Usually, nothing is to scale, which is why you can't measure anything. They are pretty annoying, but it helps to know why certain things are the way that they are and develop justification skills for higher level math.

Sorry to discourage you, but you're going to see "Justify" quite a lot in calculus and beyond which is basically a more informal version of a proof

you can never escape it tbh lol

5 0

3 years ago

Find the perimeter of the figure to the nearest hundredth.<br><br><br> Ps: it is not 30

frutty [35]

Answer:

Perimeter = 36.8 ft

Step-by-step explanation:

<u>Step 1: Add the straight sides together</u>

3+3+3+3+3+3 = 18 ft

<u>Step 2: Find the perimeter of the semi-circles</u>

The formula for the perimeter of semi-circle: 1/2 π × d

Diameter = 12 - 3 - 3 = 6, because the whole length is 12 minus the 6 ft of other stuff.

Now, 1/2π * 6 = 9.4 ft

But, there are two semi-circles so it will be 9.4 + 9.4 = 18.8 ft

18 + 18.8 = 36.8 ft

8 0

3 years ago