The length of a trip varies directly as the amount of gasoline used. Yael's car used 16 L for the first 145 km of his trip from Toronto to Montreal. a) How much gasoline, rounded to the nearest litre, should he expect to use in the remaining 400 km of his trip? b) Can he complete the trip with a budget of $70, if gasoline costs $1.13/L?

Answers

Answer 1

Answer:

44

yes. the total cost is 68 which is less than 70

Step-by-step explanation:

There is positive proportionality is two variables are positively related to each other.

The equation for direct proportionality =

y = bx

where y = dependent variable

b = constant

x = independent variable

amount of gasoline = b x length of the trip  

16 = b x 145

b = 16/145 = 0.110345

a. 400 x 0.110345 = 44

total litres used for the trip = 44 + 16 = 60

total cost of the trip = 60 x 1.13 = 67.8

total amount spent on gasoline is 67.8. this is less than the budget


Related Questions

Need helppp........!!!!!!!!!!

Answers

i think b...............................
B, not 100% but it should be the correct answer, try using the app socrastic:)

simplify 3√225x^2y^4

Answers

Answer:

45X2y4

Step-by-step explanation:

3√225X2y4

Simplify to

45X2y4

=45X2y4

please help!! choices for for the first one is $5, $15, $10, $20

Answers

Answer:

5, 240

Step-by-step explanation:

Austin correctly answered 92% of the questions on a geography quiz.
Liz answered 47 of the 50 questions correctly.
Use the drop-down menus to explain who earned the higher score.

Answers

Liz would’ve gotten a higher score. This is because if she got 47 out of 50 correct, you just divide: 47/50= 0.94. Meaning Liz got a 94% and Austin got 92%. Therefore Liz got a higher score since 94 > 92

Answer:

Liz scored more because she would score 94%, while Austin only scored 92%

Someone help please :)

Answers

Answer:

comment if you need a better explanation

The diameter of a circle in 5in.find its area to the nearest tenth

Answers

9514 1404 393

Answer:

  19.6 in²

Step-by-step explanation:

The area in terms of the diameter is given by ...

  A = (π/4)d²

  A = π/4(5 in)² = 25π/4 in² ≈ 19.6 in²

Pick Two Points on the Line. Use "Rise over Run" to Find the Slope.
T

Answers

Answer:

Easiest to pick (0, 0) and (1, 1) probably, then slope is 1.

Step-by-step explanation:

Rise over run for (0, 0) and (1, 1)  is rise up 1 and run over 1, so 1/1.

This means slope is 1

A box of Pop-tarts costs $3.00 for 8. How much per pop-tart?

Answers

it’s $0.375 per pop tart

What is the value of x?

Answers

Answer:

It all depends.

Step-by-step explanation:

If you could post an image or something to help us along, I could probably help you.

Question 6 The mineral content of a particular brand of supplement pills is normally distributed with mean 490 mg and variance of 400. What is the probability that a randomly selected pill contains at least 500 mg of minerals

Answers

Answer:

0.3085 = 30.85% probability that a randomly selected pill contains at least 500 mg of minerals

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean 490 mg and variance of 400.

This means that [tex]\mu = 490, \sigma = \sqrt{400} = 20[/tex]

What is the probability that a randomly selected pill contains at least 500 mg of minerals?

This is 1 subtracted by the p-value of Z when X = 500. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{500 - 490}{20}[/tex]

[tex]Z = 0.5[/tex]

[tex]Z = 0.5[/tex] has a p-value of 0.6915.

1 - 0.6915 = 0.3085

0.3085 = 30.85% probability that a randomly selected pill contains at least 500 mg of minerals

The probability is 0.3085.

Let X=the amount of minerals.

We have to find P(X≥500).

Mean = 490.

Standard deviation = [tex]\sqrt{400}=20[/tex].

z score of 500 is = [tex]\frac{500-490}{20 } =0.5[/tex].

So, P(X≥500) = P(z≥0.5) = 1 - P(z<0.5) = 1-0.6915=0.3085.

Learn more: https://brainly.com/question/14109853

PLEASE HELP ME GUYS ×0×

Find the RATIO and the EXACT VALUE of the given Tan A.​

Answers

Answer:

Step-by-step explanation:

take angle A as reference angle

using tan rule

tan A=opposite/adjacent

tan A=5/12

tan A=0.41

A=tan 22.5

A=22.5

for ratio,

tan A=5/12

Solve
Please help
r/20 - 3 = -2

Answers

Answer:

r=30

Step-by-step explanation:

r/30=-2+3

r/30=1

r=1×30

r=30

⟰ ANSWER ⟰

U R ANS IS IN THE PIC !

HOPE IT HELPS U !!!!!(:

1) Determine the value written as a fraction , decimal & a percent. fraction decimal percent​

Answers

Answer:

what value??????

what is the degree of polynomial
f (x) = 2x² - 5x+6 ?​

Answers

Answer:

2

Step-by-step explanation:

The degree of a polynomial is its highest exponent value: in this case, thats just two!

Answer:

degree 2

Step-by-step explanation:

The degree of a polynomial is determined by the largest value of the exponent attached to the variable.

f(x) = 2x² - 5x + 6 ← has the term 2x² with exponent 2 ( largest ), then

f(x) is a polynomial of degree 2

One bag of lawn fertilizer can cover approximately 6,000 square feet. Mike's lawn is about 300 square feet. When Mike applies fertilizer to his lawn, he applies it to 2/3 of his lawn only. About how many complete times can Mike fertilize his lawn with one bag of fertilizer?

Answers

Answer:

Mike fertilize his lawn with one bag of fertilizer = 19.33 times

Step-by-step explanation:

Given - One bag of lawn fertilizer can cover approximately 6,000 square feet. Mike's lawn is about 300 square feet. When Mike applies fertilizer to his lawn, he applies it to 2/3 of his lawn only.

To find - About how many complete times can Mike fertilize his lawn with one bag of fertilizer?

Solution -

Given that,

1 bag of fertilizer can cover approximately 6,000 square feet.

Now,

Mike's Lawn = 300 square feet

He applied fertilizer to 2/3 of his lawn only.

i.e

He applied fertilizer to (2/3)×300 = 200 square feet of lawn

Now,

Total fertilizer left to cover = 6,000 - 200 = 5800 square feet

Now,

Let x be the times for which he fertilize his lawn fully

SO,

300x = 5,800

⇒3x = 58

⇒x = 19.33

∴ we get

Mike fertilize his lawn with one bag of fertilizer = 19.33 times

Angel saved $100 a week for a year. She spent 40%
of her savings on a new bed. How much did she
spend on the bed?

Answers

Answer:

40 because 40 percent of 100 is 40. You can just multiply the number by the percentage $100x40%

What is the mean of the snowfall amounts?

16.9 inches

15 inches

15.9 inches

16 inches

Year Snowfall (inches)
1997 14
1998 10
1999 17
2000 24
2001 12
2002 19
2003 15
2004 27
2005 14
2006 17

Answers

Answer:

16.9

Step-by-step explanation:

14+10+17+24+12+19+15+27+14+17=169

169/10=16.9

Which of the following expressions is equivalent to 18x + 30y?

A) 3(6x + 30y)

B) 6(3x + 5y)

C) 3xy(6 + 5)

D) 6(3y + 5x)

Answers

Answer:

B) 6(3x + 5y)

Step-by-step explanation:

6 times 3 is 18 and 6 times 5 is 30

HELP ON PAGE 25 POINTS

Answers

Answer:

Part A: ≈112.06

Part B: B

Step-by-step explanation:

Find the surface area and volume for the separate shapes, then add them up together

---------------------------------------------------------------------------------------------------------------

Have a good day :)

Find the total volume of the composite figure below. Round to the nearest thousandth.

Use the π key.

Answers

Answer:

The volume of the composite figure is approximately 3567.198 cubic feet.

Step-by-step explanation:

The composite figure consists in the combination of a right cone and a cuboid. The volume of the composite ([tex]V[/tex]), in cubic feet, figure can be determined by this expression:

[tex]V = \frac{1}{3}\cdot \pi \cdot r^{2}\cdot h + w\cdot H \cdot l[/tex] (1)

Where:

[tex]r[/tex] - Radius of the circle of the right cone, in feet.

[tex]h[/tex] - Height of the cone, in feet.

[tex]w[/tex] - Width of the cuboid, in feet.

[tex]H[/tex] - Height of the cuboid, in feet.

[tex]l[/tex] - Length of the cuboid, in feet.

If we know that [tex]r = 10\,ft[/tex], [tex]h = 10\,ft[/tex], [tex]w = 20\,ft[/tex], [tex]H = 7\,ft[/tex] and [tex]l = 18\,ft[/tex], then the volume of the composite figure is:

[tex]V = \frac{1}{3}\cdot \pi \cdot (10\,ft)^{2}\cdot (10\,ft) + (20\,ft)\cdot (7\,ft)\cdot (18\,ft)[/tex]

[tex]V = \left(\frac{1000\pi}{3} + 2520\right)\,ft^{3}[/tex]

[tex]V \approx 3567.198\,ft^{3}[/tex]

The volume of the composite figure is approximately 3567.198 cubic feet.

The price of a laptop decreased from RS50 000 to Rs45 000. Calculate the percentage decrease in the price.

Answers

half answer only .............

Answer:

Step-by-step explanation:

loss amount=Rs 50000-Rs 45000

=Rs 5000

loss%=loss amount/original amount100%

=5000/50000*100

=500000/50000

=10%

The frequency table shows the results of a survey comparing weekly gasoline costs to the average number of miles a car can drive on a gallon of gasoline.

4-column table with 3 rows. First column has no label with entries less than 30 miles a gallon, greater than or equal to 30 miles a gallon, total. The second column is labeled less than 40 dollars a week with entries 33, 27, 60. The third column is labeled greater than or equal to 40 dollars a week with entries 77, 3, 80. The fourth column is labeled total with entries 110, 30, 140.

Marcel converts the frequency table to a conditional relative frequency table by row.

4-column table, 3 rows. First column no label with entries less than 30 miles a gallon, greater than or equal to 30 miles a gallon, total. Second column labeled less than 40 dollars a week with entries W, Y, almost equals 0.43. Third column labeled greater than or equal to 40 dollars a week with entries X, Z, almost equals 0.57. Fourth column labeled total with entries 1.0, 1.0, 1.0

Which value should he use for Y? Round to the nearest hundredth.

0.19
0.45
0.82
0.90

Answers

Answer:

D.) 0.90

Step-by-step explanation:

Doing the unit test review on EDG right now! :D

Wish you all luck~

Have a good day! :3

(Evidence: screenshot below!)

The value for Y to the nearest hundredth is 0.90; option D.

What is the value for Y?

The value for Y is obtained from the data in the frequency table.

By solving for Y from the frequency table:

Y + Z = 0

Y + Z = 1.0

Either Y is 0 or Y is 1.

Therefore, Y is approximately 0.90 to the nearest hundredth.

Learn more about frequency table at: https://brainly.com/question/16148316

#SPJ9

In which function is the range equal to the domain?
1) y = 2
2) y=x?
3) y = log x
4) y = x

Answers

Range=y, domain=x, so y = x would be your answer.

If A = 3x2 + 5x - 6 and B = 2x2 + 4x + 7, then A + B equals

Answers

Answer:

5x² + 9x + 1

Step-by-step explanation:

Given:

A = 3x² + 5x - 6

B = 2x² + 4x + 7

A + B:

3x² + 5x - 6 + 2x² + 4x + 7

(3x² + 2x²) + (5x + 4x) - 6 + 7

5x² + 9x + 1

Please someone help!!!

Answers

Answer:

surface area of the cuboid

(2×2×5)+(2×12×5)+(2×12×2)

20+120+48

188 cm²

4. Given point A (3, 8) and point B (-5, 1). Find the following:
a.) The coordinates of the midpoint of segment AB. Write your answer in this form: (x, y) (7 points)
b.) Using the distance formula, find the length of segment AB. Round to the nearest hundredth. (7 points)
c.) Find the slope of segment AB. (if your answer is a fraction, use the "/" symbol) (7 points)

Answers

Answer:

a) (-1,4.5)

b)10.63 units

c)7/8

Step-by-step explanation:

a) To find this, we use the midpoint formula

(x,y) = (x1 + x2)/2 , (y1 + y2)/2

(x1,y1) = (3,8)

(x2,y2) = (-5,1)

(x,y) = (3 -5)/2 , (8 + 1)/2 = (-1, 4.5)

b) To calculate the distance D between two points, we use the formula;

D = √(x2-x1)^2 + (y2-y1)^2

D = √(-5-3)^2 + (1-8)^2

D = √(-8)^2 + (-7)^2

D = √64 + 49

D = √113

D = 10.63 units

C) We use the slope formula here

m = (y2-y1)/(x2-x1)

m = (1-8)/(-5-3) = -7/-8 = 7/8

Can someone help me do this like the equation?!.

Answers

Answer:

36$

Step-by-step explanation:

between which two consecutive numbers does the square root below lie ?
[tex] - \sqrt{128} [/tex]

Answers

Answer:

where is the second one?

Step-by-step explanation:

Can someone help me with this question please

Answers

37 im pretty sure sorry if not correct.

I WILL MARK BRAINLEST IF YOU HELP ME

Answers

Answer:

Step-by-step explanation:

top left r= 0.9 ; top right r= 0.4

bottom left r=0; bottom right r= -0.4

if they are not around a line looking like r=0

if they resemble a line well is close to r=1

if line goes up from left to right is r positive

if line goes down from left to right is r negative

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