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Bad White [126]
3 years ago
6

Darnell's car used 8 gallons or gasoline to travel 340 miles. After a mechanic worked on the car, it used 7 gallons of gasoline

to travel 350 miles. If the price of gasoline was approximately $4.00 per gallon, how much less to the nearest cent per mile did it coast to run the car after the mechanic worked on it
Mathematics
2 answers:
insens350 [35]3 years ago
7 0

Answer:

Step-by-step explanation:

Is it o.o8

Ivan3 years ago
5 0
8 gallons/340 miles vs. 7 gallons/350 miles
$32/340 miles vs. $28/350 miles
$1.133/1 miles vs. $0.08/1 mile
113 cents/mile vs. 8 cents per mile

113 cents- 8 cents = 105 cents

The answer is 105 cents/mile.
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21:28 is equal to 7:8
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A recipe needs a ratio of 2.5 of sugar to flour. If Joe uses 60g of sugar, how much flour should he use?
lisabon 2012 [21]
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Explanation for equation:
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A survey finds that 55 people out of 170 favor increasing property taxes to help pay for a new library. If this data is used to
Aloiza [94]

Answer: B. 0.036

Step-by-step explanation:

Formula for standard error :

SE=\sqrt{\dfrac{p(1-p)}{n}}

, where p = Population proportion and n= sample size.

Let p be the population proportion of the people who favor new taxes.

As per given , we have

n= 170

p=\dfrac{55}{170}\approx0.324

Substitute these values in the formula, we get

SE=\sqrt{\dfrac{0.324(1-0.324)}{170}}\\\\=\sqrt{0.00129}\\\\=0.0359165699921\approx0.036

Hence, the standard error of the estimate is 0.036.

∴ The correct answer is OPTION B. 0.036

8 0
3 years ago
Find three consecutive odd integers whose sum is 495.
dedylja [7]

The three consecutive odd integers whose sum is 495 are 163, 165, and 167.

What are consecutive numbers?

⇒ Integers that are listed in a consistent counting pattern are referred to as consecutive integers. There are no numbers missed while listing consecutive integers in a sequence, so the difference between them is always fixed. The difference between each subsequent integer is 1, for instance, can be written as -4, -3, -2, -1, 0, 1, 2, 3, and so on.

What are consecutive odd integers?

⇒ Consecutive odd numbers are odd integers that are separated by 2 and come after one another. If the number x is odd, then the numbers x + 2, x + 4, and x + 6 are also odd.

Calculation:

We are going to take an odd number, x, write its subsequent consecutive numbers, add all of them together, then equate them to  495 to find the number. The equation for x is then resolved.

We have been given that the sum of 3 consecutive odd numbers is equal to 495.

Let the first consecutive odd integer is x.

⇒ Then the next consecutive odd integers becomes x + 2 and the next term becomes x + 2 + 2 = x + 4.

Now the sum of these three odd consecutive terms = x + x + 2 + x + 4 = 3x + 6.

According to the given,

3x + 6 = 495

3x=489

x=163

⇒ Hence, the three consecutive odd integers whose sum is 495 are 163, 165, and 167.

Learn more about consecutive numbers here: brainly.com/question/10853762

#SPJ9

6 0
2 years ago
Read 2 more answers
H+6.9+11.4 <br> a<br> 4.0<br> b<br> 4.5<br> c<br> 5.0<br> d<br> 5.5
antiseptic1488 [7]

Could you please express this question better, I don't seem to understand the objective.

4 0
3 years ago
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