Maddie Evans drove 180 miles in the same matter I'm not detect a turbo propeller plane to travel 690 miles the speed of the plane was 170 mph faster than the speed of the car find the speed of the plane

Answers

Answer 1

Answer:

let

m = the speed of Mattie

d1 = 180 mi the distance Mattie traveled

p = the speed of the plane

d2 = 630 mi the distance the plane traveled

the speed of the plane was 150 mph faster than the speed of the car

p = m + 150

since speed = distance/time => time = distance/speed

d1/m = d2/p

180/m = 630/p cross multiply

180p = 630m divide both sides by 90

2p = 7m

by solving the system of equations

p = m + 150

2p = 7m

we find

p = 210 mph

The speed of the plane was 210 mph


Related Questions

What is the probability that a person orders sandwich with cheddar cheese

Answers

Answer:

16.67%

Step-by-step explanation:

John buys 6 shares for $3 each. He sells them for $4. What is his capital gain?

Answers

He bought them for $3 each and sold them for $4 each. That is a gain of $1 for each stock (4-3 = 1)

6 stocks x $1 = $6 total gain

6+3+4=13

Step-by-step explanation:

and if u multiple are divided u will get 6×3×4= 72 and if u divided 6÷3÷4=0.5and if u multiple and divide u will get 4.5

Here’s the next problem:)

Answers

Answer:

disagree

Step-by-step explanation:

toa=opposit over adjacent= 12/9

tan(x)=12/9

tan^-1=12/9

x= 53.1

Answer:

Disagree

Step-by-step explanation:

x actually equals 53.13

Double the product of 4y and 3b if y=2 and b=1.

Answers

Answer:

48

Step-by-step explanation:

Double the product of 4y and 3b

2 * ((4y) * (3b))

y = 2 and b = 1

2 * ((4 * 2) * (3 * 1))

2 * (8 * 3)

2 * 24

48

I need some explaining this is so unclear​

Answers

Pls send again unclear
Question

у= 3х-5
у = 3х+12
Please help ASAP for my lil sister

Answers

Answer:

0

Step-by-step explanation:

The equation is undefined.

help with the Area of a circle

Answers

Answer:

A = 201.06 units²

A = 78.54 units²

Step-by-step explanation:

Formula for area of a circle = πr²

✔️Area of the first circle:

r = ½(d) = ½(16)

r = 8

Area = π*8² = π*64

Area = 201.06 units²

✔️Area of the second circle:

r = 5

Area = π*5²

= π*25

Area = 78.54 units²

why is coal a non-renewable energy source​

Answers

1. It is extracted from the ground.
2. It took years to form.

find the supplementary angle of the following write the answer in the blank​

Answers

...............................:::::::::::::::::::.................:::::::::::::..:..:..:&::::...

Select all ratios equivalent to 8:16.
14:12
13:32
3:6

Answers

Answer:

3:6

Step-by-step explanation:

8:16 is a 1/2 ratio

Solve-20-5>3.
Which graph shows the solutions?

Answers

The second one shows the solution

PLEASE HELP! I WILL GIVE BRAINLIEST! Determine whether the statement is always, sometimes, or never true.
13. If a triangle is acute triangle, then it is an equilateral triangle.
14. If a triangle has two acute angles it must be an acute triangle. 15.An obtuse triangle can have a right angle.

Answers

Answer:

13 True

14 Sometimes

15 Never

Step-by-step explanation:

All equilateral triangles must have 60 degree angles

Sometimes a acute triangle can have 2 acute angles

Obtuse angles take up majority of the mesuares in the triangle. All triangles must have 3 angles equal up to 180 degrees

Write the Ratio of sin A/Cos B/ tan B

Answers

Answer:

Step-by-step explanation:

sinA= 8/10= 4/5

CosB= 8/10=4/5

tanB=6/8=3/4

Hiiii!!! help! I'll mark brainliest

Answers

Answer: C/ The third one

Step-by-step explanation:

someone please help me with this

Answers

9514 1404 393

Answer:

  x = 39

Step-by-step explanation:

The Pythagorean theorem tells you the sum of the squares of the sides of a right triangle is the square of the hypotenuse.

  x² +80² = 89²

  x² = 89² -80² = 7921 -6400 = 1521

  x = √1521

  x = 39

Will give brainliest
Find the mean, median, mode, and range of the following data. Then, create a line plot, histogram, and a box‐and‐whisker plot for the data. 65, 75, 93, 95, 84, 67, 75, 65, 65, 72, 83, 74

Answers

Answer: There is a picture below of my work. Sorry for my sloppy hand writing.

Answer:

Step-by-step explanation:

84

johns rent is $1,355. what is his standardized z-score

Answers

Answer:

His standardized z-score is [tex]Z = \frac{1355 - \mu}{\sigma}[/tex], in which [tex]\mu[/tex] is the mean price of rents and [tex]\sigma[/tex] is the standard deviation for price of rents.

Step-by-step explanation:

Z-score:

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.

Johns rent is $1,355.

This means that [tex]X = 1355[/tex]

What is his standardized z-score

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

[tex]Z = \frac{1355 - \mu}{\sigma}[/tex]

His standardized z-score is [tex]Z = \frac{1355 - \mu}{\sigma}[/tex], in which [tex]\mu[/tex] is the mean price of rents and [tex]\sigma[/tex] is the standard deviation for price of rents.

Which of the following equations describes the line shown below? Check all
that apply.

Answers

Answer:

B. y = 2x - 2

E. [tex] y + 4 = 2(x + 1) [/tex]

F. [tex] y - 6 = 2(x - 4) [/tex]

Step-by-step explanation:

The equation of the line can be found using either the point-slope equation or the slope-intercept equation.

✔️Equation of the line in point-slope using the slope and the coordinates of the point (4, 6):

Slope = m = change in y/change in x

Using (4, 6) and (-1, -4),

m = (-4 - 6)/(-1 - 4)

m = -10/-5

m = 2

Substitute m = 2, and (a, b) = (4, 6) into the point-slope equation form [tex] y - b = m(x - a) [/tex]

Thus:

[tex] y - 6 = 2(x - 4) [/tex]

✔️Equation of the line in point-slope using the slope and the coordinates of the point (-1, -4):

Slope = m = 2

Substitute m = 2, and (a, b) = (-1, -4) into the point-slope equation form [tex] y - b = m(x - a) [/tex]

Thus:

[tex] y - (-4) = 2(x - (-1)) [/tex]

[tex] y + 4 = 2(x + 1) [/tex]

✔️Equation of the line in slope-intercept form, y = mx + b

Where,

m = slope = 2

b = y-intercept = -2 (the point where the line intercepts the y-axis)

Thus, substitute m = 2 and b = -2 into y = mx + b

y = 2x + (-2)

y = 2x - 2

According to the 2010 Census information, 13.6% of those living in Lucas County are living in poverty. A random sample of 489 people living in Lucas County yielded that 16% of them report living in poverty. Test the claim that the poverty rate has increased since 2010. The level of significance is 0.10. c. Suppose the p-value is 0.085. State the conclusion of this test.

Answers

Answer:

Option b .

Step-by-step explanation:

Given that

The 13.6% represent the people living in property

There is a random sample of 489 people in that 16% of them would be in poverty

The significance level is 0.10

ANd, the p value is 0.085

We need to find out the conclusion

According to the attached options, we considered that there is enough evidence in order to support the claim that result in rise in the poverty rate

AB is the midsegment of AXYZ and PQ is the midsegment of XAB. What is the relationship in length between PQ and YZ? O PQ = 1/8 Y Z O PQ = 1/2YZ O PQ = 1/4Y Z O PQ = 1/3YZ​

Answers

Answer:

third option: PQ = 1/4(YZ)

Step-by-step explanation:

By the Midsegment Theorem, a midsegment is 1/2 the side across it. Using this, we can say:

In triangle XYZ, AB = 1/2(YZ)

And in triangle XAB, PQ = 1/2(AB)

We can substitute AB into the second equation to get:

PQ = 1/2(1/2(YZ))

PQ = 1/4(YZ)

This is the third option.

I will give brainliest

Answers

Answer:

Step-by-step explanation:

make a right triangle to find the lenght of a side  which is also the hypotenuse of the triangle

c² = a² + b²

c² = 7² + 5²

c²  = 49 + 25

c²  =  = 74

Since the area of a square is s² and c = s

a = c²

a = 74 units²

What’s the correct answer??? I will mark as brainlest?

Answers

Answer:

t=0.15n

Step-by-step explanation:

I had it on a test and it was correct

3.75=0.15(25)

and when you times 0.15*25 it equals 3.75

6. What is the first step in financial planning?

Answers

Answer:

determining your current financial situation.

Step-by-step explanation:

Answer:

determining your current financial situation

Step-by-step explanation:

SOMEONE SMART PLEASE HELP ME!! a rectangle's area is 336 mm Its height is 16 mm. What is its bases?​

Answers

Answer:

The base of the rectangle is 21 mm.

Step-by-step explanation:

Given that a rectangle's area is 336 mm, and its height is 16 mm, to determine what is the measure of its base, the following calculation must be performed, knowing that the area of a rectangle arises from multiplying its base by its height:

16 x X = 336

X = 336/16

X = 21

Therefore, the base of the rectangle is 21 mm.

Write an addition equation or a subtraction equation (your choice!) to describe the diagram.

Answers

the answer is 5 + 2 = 7

62 - (5 - 4) + 2(8 - 22) / 8

Answers

Answer:

This is BIDMAS / BODMAS

You need to do BRACKETS first, so 5 - 4 = 1. Now if it is NOT the sequence then it would be 62 - 1 + 2 = 63. The rest I do not know.

Answer:

57.5

Step-by-step explanation:

62 - (5 - 4) + 2(8 - 22) ÷ 8

62 - (1) + 2(- 14) ÷ 8

62 - 1  - 28 ÷ 8

61 - 3.5

57.5

Suppose you conduct a hypothesis test based on a sample where the sample size is n = 50, and arrive at a p-value of 0.08. You then refer back to your notes and discover that you made a careless mistake, the sample size should have been n = 500. Will your p-value increase, decrease, or stay the same? Explain.

Answers

Answer:

Decrease

Step-by-step explanation:

The Pvalue is used to measure the level or decide if a particular research claim is significant or not. The sample size also plays a role in the Pvalue of a statistical analysis. Larger sample sizes tend to prove the significance of the claim. Using the Pvalue approach, the significance of a claim is examined by the and established by small P values. Therefore, an initial Pvalue of 0.08 obtained using a sample size of 50. The Pvalue will most likely witness a further decrease in the Pvalue if the sample size is increased to 500 as this would move the claim closer to being significant.

Which one of these diagrams shows its reference angle in standard position?

Answers

Answer:

A

Step-by-step explanation:

MARK AS BRAINLIEST!!

What is the output for an input of "9" for "n" for the equation m=4n-6.

Answers

Answer:

so m=30

Step-by-step explanation:

4x9 is 36

36-6 is 30.

Answer:

m = 30

Step-by-step explanation:

The following confusion matrix for a classification method with Class 0 and Class 1 was found by Data Mining: Confusion Matrix Predicted Class Actual Class 0 1 0 105 53 1 32 110 What are the percent error rates for Class 0 and Class 1? a. 31.65% and 22.54%, respectively b. 33.54% and 22.54%, respectively c. 10.71% and 41.25%, respectively d. 45.37% and 46.67%, respectively

Answers

Answer:

b. 33.54% and 22.54%, respectively

Step-by-step explanation:

Confusion Matrix

                                         Predicted Class

Actual Class            0                          1                                Total    

0                             105                    53                               158

                               True Positive     False Negative

                                  TP                        FN                                          

1                               32                     110                               142

                             False Positive       True Negative

                                 FP                           TN

Total Error Rate = FN +FP/ P +N

Total Error Rate = 53+32/ 105+32+53+110

Total Error Rate = 85/300 = 28.33%

Error Rate for Class 0  = FP/ FP+TP=  32/142 = 22.53%

Error Rate for  Class 1=  FN/ FN+TP=  53/ 158= 33.54%

 

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