Mathematics High School

An object travels 8 miles in 20 minutes at a constant speed. What is the
object’s speed in miles per hour?

Answers

Answer 1

Answer:

The answer is 0.4mph

Step-by-step explanation:

To find the speed of an object, you do distance ÷ time.

So you do 8 ÷ 20 which is 0.4.

So the object travels 0.4mph

Related Questions

DUE 10 MIN PLEASE HELP
show work

Answers

Answer:

10

Step-by-step explanation:

For the percent 58%, (a) write a decimal and (b) write a fraction in lowest terms. ​

Answers

Answer:

A) 0.58

B)  58/100

Step-by-step explanation:

Can i have brainliest if its right :)

A box of chocolates contains 18 chocolate squares 10 of the squares are in milk chocolate five or dark chocolate and 3 are white chocolate is Christie randomly chooses a Chocolate out of the box what is the probability of her choosing a white chocolate square

Answers

Answer:

3/18

Step-by-step explanation:

3/18 or 0.17 rounded.

I need help with this from start to finish


Answers

Answer:

i think you need to find the squar rout and you can just do that with a caulator.

Step-by-step explanation:

James is studying different kinds of weather.

Rain has water drops that are larger than 0.02 inch in diameter.
Small hailstones are less than 14 inch in diameter.
Complete the statement that best represents the different kinds of weather James studied. Select one correct answer from each box to complete the sentence.








A


B


C


D


E


F


G


H

Answers

Answer:

i got b and h{i hope this helps}

Step-by-step explanation:

a) (x^2 + 1/2)^2

using the formula:
(a+b)^2= a^2+2ab+b^2​

Answers

Step-by-step explanation:

(x^2+1/2)^2=(x^2)^2+2*x^2*1/2+(1/2)^2=

x^4+(2x^2)/2+1/4=

x^4+x^2+1/4

Answer:

x^4 + x^2 + 1/4

Step-by-step explanation:

[tex] {( {x}^{2} + \frac{1}{2} })^{2}[/tex]

a = x^2

b = 1/2

[tex] {a}^{2} + 2ab + {b}^{2} [/tex]

[tex] ({x {}^{2}) }^{2} + 2( {x}^{2} )( \frac{1}{2} ) + { \frac{1}{2} }^{2} [/tex]

[tex] {x}^{4} + {x}^{2} + \frac{1}{4} [/tex]

HELP PLEASE
Given the exponential function f(x) = 16(0.75)x, classify the function as exponential growth or decay and determine the percent rate of growth or decay.

Exponential growth, 75% increase
Exponential decay, 75% decrease
Exponential growth, 25% increase
Exponential decay, 25% decrease

Answers

I think it’s Expinential growth, 25% increase. If not i’m sorry

On a team, 7 girls and 6 boys scored a total of 105 points. The difference between the number of points scored by the 7 girls and the number of points scored by the 6 boys is 21. Each girl scored the same number of points and each boy scored the same number of points. (Needs 2 equations) (Write the system)

Answers

Answer:

Each girl scored 9 points

Each boy scored 7 points

Step-by-step explanation:

Let the number of points each girl scored = a

Let the number of points each boy scored = b

7 girls and 6 boys scored a total of 105 points.

7a + 6b = 105......... Equation 1

The difference between the number of points scored by the 7 girls and the number of points scored by the 6 boys is 21

7a - 6b = 21........... Equation 2

7a + 6b = 105......... Equation 1

7a - 6b = 21........... Equation 2

Subtract Equation 2 from Equation 1

12b = 84

b = 84/12

b = 7

Therefore, each boy scored 7 points

7a + 6b = 105......... Equation 1

b = 7

7a+ 6b = 105

7a + 6(7) = 105

7a + 42 = 105

7a = 105 - 42

7a = 63

a = 63/7

a = 9

Therefore, each girl scored 9 points.

In a rectangle KLMN, the diagonals KM and LN intersect at O. (i) If KO = 4y + 6 and ON = 3y + 11, find the lengths of its diagonals. (ii) If ∠NKM = 32°, find ∠KON and ∠KMN. GUYS, IT'S VERY URGENT. I HAVE TO SUBMIT TOMORROW. PLS ANS. PLS DON'T GIVE WRONG ANSWERS

Answers

Answer:

1). Length of diagonals = 52

2). m∠KON = 103°, m∠KMN = 45°

Step-by-step explanation:

KLMN is a rectangle.

Diagonals KM and LN intersect at point O.

1). Since, diagonals of the rectangle equally bisect each other.

   KM = 2(KO)

   KM = 2(4y + 6)

   And LN = 2(ON)

   LN = 2(3y + 11)

   Since, length of diagonals of a rectangle are equal in measure.

   2(4y + 6) = 2(3y + 11)

   4y + 6 = 3y + 11

   4y - 3y = 11 - 6

   y = 5

   Therefore, length of diagonals = 2(3y + 11)

                                                       = 2(15 + 11)

                                                       = 52 units

2). m∠NKM = 32°

    Since, m∠KNM = 90° [internal angle of a rectangle]

    And diagonal LN bisects this angle,

    m∠KNO = 45°

    In ΔKNO,

    m(∠NKM) + m(∠KNO) + m(KON) = 180°

    32° + 45° + m∠KON = 180°

    m∠KON = 180° - 77°

                   = 103°

    Since, m∠KMN = [tex]\frac{1}{2}[/tex](m∠LMN)

    m∠KMN = [tex]\frac{1}{2}(90)[/tex] = 45°

Answer:

Did u submit ur answer?

Step-by-step explanation:

plz help me i need it​

Answers

I can't see the choices real well, but I think it's b, 35%.

Answer:

B 35% is the answer

Last year, Deanna bought 225 lamps when customers needed 250 lamps. This year, she bought 300 lamps but only sold 200 lamps. Which set of statements about the percent errors for the two years is true?
The percent error for this year was lower. Deanna estimated better last year.
The percent error for this year was higher. Deanna estimated better last year.
The percent error for this year was lower. Deanna estimated better this year.
The percent error for this year was higher. Deanna estimated better this year.

Answers

Answer:

The percent error for this year was higher. Deanna estimated better last year.

Step-by-step explanation:

Answer:

Step-by-step explanation:

6jkyuilyi

Find the unit rate of miles per gallon for these vehicles

Sedan:
Minivan:
Truck:

Answers

Answer:

Sedan: 18

Minivan:19

Truck: 16

Step-by-step explanation:

Got it right on edge

If you don't trust me sorry but i got it right

Which number is greater explain 1/5 or 0.50 plss help

Answers

Answer:

1/2 or 0.5 is greater than 1/5

0.5=5/10
The common denominator is 10
That would make 1/5 2/10
5/10 is greater than 2/10 therefore 0.5 is greater

Can a line be measured?

Answers

Answer:

yeah .It can be measured

yes, yes i can. things like pencil or normal line.

PLEASE HELP !!!!!!!!!!!! ASAP
If set A = {3,4,7,9) and set B = [8, 9, 10, 11), then AUB is​

Answers

Step-by-step explanation:

AuB={3,4,7,9}U{8,9,10,11}

Explain how using
basic facts can help you find 10 x 20 x 30 x 40 mentally.

Answers

Answer:

you just do 1x2x3x4

and then that equals 24

so now you have 24 and then you add 4 zeros because their are 4 zeros in the equation so then the final answer is

240000

Step-by-step explanation:

what is "six times a number y is less than or equal to 10 written as an inequality"

Answers

XY< 10

if you get too confused whether the x is a variable or a sign, use the * .

A girl’s club held a fundraiser last year and raised $600 for the local soup kitchen. This year they raised $960. What is the percent change in the total amount raised by the girl’s club?
The percent change is 0.38%.
The percent change is 0.6%.
The percent change is 38%.
The percent change is 60%.

Answers

Answer: option D

Step-by-step explanation:

Answer:

D.) The percent change is 60%

Step-by-step explanation:

I know this because 960-600= 360

360÷600= .6

.6= .60

.60= 60%

Hope this helped!!! :)

A hybrid car uses 1 gallon of gasoline to drive 54 miles. How many gallons of gasoline would be used to travel 162 miles?

Answers

Answer:

3 gallons

Step-by-step explanation:

if 1 gallon is consumed for 54 miles

what about 164 miles ..

so you take 1 * 162

..........

54

If BC measures 8 inches, the approximate area of circle B is
square inches.

Answers

The answer 16 8+8=16

The area of the circle radius as 8 inches will be 201.062 inches².

What is a circle?

A circle is a geometrical figure which becomes by plotting a point around a fixed point by keeping a constant distance.

In our daily life, we always see circular objects for example our bike wheel.

The longest line which can be drawn inside the circle will be the diameter.

Area of circle = πr² and the perimeter of circle = 2πr where r is the radius of the circle.

Given the circle with a radius BC of 8 inches.

Area of circle = πr² where r is the radius of the circle.

So,

Area = π(8)² = 201.062 inches.

Hence "The area of the circle radius as 8 inches will be 201.062 inches².

To learn more about the circle,

https://brainly.com/question/266951

#SPJ2

The given question figure is missing the figure has been attached below;

ANSWER FAST FOR BRAINLIEST AND FIVE STARS AND THXS!!!

Answers

Answer:

c

Step-by-step explanation:

dont quote me

Answer:

c.

Step-by-step explanation:

There are 420 grams of sodium in 3 cans of soup. Which equation finds the number of grams of sodium, s, in 1 can of soup? A 1s=34201 over s is equal to 3 over 420 B 3s=14203 over s is equal to 1 over 420 C s420=31s over 420 is equal to 3 over 1 D s1=3420s over 1 is equal to 3 over 420

Answers

Answer:

[tex]1\ can = 140g[/tex]

Step-by-step explanation:

Given

[tex]420 g = 3\ cans[/tex]

Required

Determine the number of grams in 1 can

[tex]420 g = 3\ cans[/tex]

Reorder

[tex]3\ cans = 420 g[/tex]

Divide both sides by 3

[tex]\frac{3\ cans}{3} = \frac{420 g}{3}[/tex]

[tex]1\ can = 140g[/tex]

Hence;

There are 140 grams in 1 can

Which is the factored form of
x2 - 5x – 14

Answers

Answer:

Step-by-step explanation:

espera y termino y te ayudo vale que me falta poco vale

Answer:

Step-by-step explanation:

(X+2)(x-7)

Marty’s dog can run 3 miles in 20 minutes. What is the dog’s speed in miles per hour?
How do i get the answer?

Answers

Since there is 60 minutes in a hour you would multiply 20*3 to get the hour. Now since you multiplied the minutes by 3 you also multiply the amount of miles giving you 9 miles per hour

According to.the order of operation, which of the following operations should be completed first in the following expression 2(5-3)^3+6^2

Answers

Answer:

Step-by-step explanation:

PEDMAS

P - Parenthesis

E - Exponents

D - Division

M - Multiplication

A - Addition

So, 2(5-3)^3+6^2  

5 - 3 should be completed first as it is inside parenthesis

2(5-3)^3+6^2 = 2 *2^3 + 6^2

                     = 2 * 8 + 36            {exponents}

                     = 16 + 36              {Multiplication}

                    = 52

Find the value of a and b when x =10

Answers

Answer:

A=250

B=10

Step-by-step explanation:

You plug in 10 for x and solve

Let’s do a first.
So to start, we need to substitute 10 into the equation, so:
a = 5 x (10 squared) / 2
Which can be simplified to
a = 5 x 100 / 2
a = 500 / 2
a = 250

Now onto b. Again, we need to substitute 10 into the equation, so:
b = (2 x (10 squared))(10 - 5) / 10 x 10
Which can be simplified to
b = (2 x 100)(10 - 5) / 10 x 10
b = 200(10 - 5) / 10 x 10
b = 200(5) / 10 x 10
b = 1000 / 10 x 10
b = 1000 / 100
b = 10

Lets work on an old skill you ve already learned!
Determine the following for the set of data
13, 18, 13, 14, 13, 16, 14, 21, 13
Mean
Median
Mode
Range

Answers

Answer:

mean:15

median:14

mode:13

range: 8

. Keisha and her mom are at the grocery store. Keisha's mom allows her to buy a 2 pound bag of candy. Keisha can choose gummy worms, which are .40 cents per pound, or she can choose sour patches, which are .60 cents per pound. How much of each candy can Keisha buy?

Answers

Answer:

She can buy 0.8 cents worth of Gummy worms and 1.2 cents worth of sour patches

Step-by-step explanation:

Keisha is allowed to buy only 2 pounds bag of candy.

Now, she can choose either gummy worms or sour patches.

Gummy worms are 0.4 cents per pound while sour patches are 0.6 cents per pound.

Thus, maximum amount she can spend on gummy worms is; 0.4 × 2 = 0.8 cents

Maximum she can spend on sour patches is; 0.6 × 2 = 1.2 cents

She can buy 0.8 cents worth of Gummy worms and 1.2 cents worth of sour patches

PARTA
☺
It takes Mrs. Miklos 5 minutes to grade 7 quizzes. At this rate, how many quizzes can she grade in 15 minutes?

Answers

Answer:

21 quizzes

Step-by-step explanation:

Divide 15 by 5 to know how many 5 minutes are in 15 minutes.

[tex]15 \div 5 = 3[/tex]

5 minutes are spent for 7 quizzes.

5 × 3 minutes are spent for 7 × 3 quizzes.

[tex]7 \times 3 = 21[/tex]

Mrs. Miklos can grade 21 quizzes in 15 minutes.

What is the measure of angle B?

A. 35°
B. 55°
C. 125°
D. 65°

Answers

Answer:

B.

Step-by-step explanation:

B.55

we know that the measures should add up to 180 degrees so,

90+35= 125
180-125= 55

so, the measure of angle B is 55 degrees
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