The real numbers include the positive and negative integers and fractions (or rational numbers) and also the irrational numbers.
a bus travelled 63 km in first hour 60 km in second hour and 57 km in third hour what was te Average distance covered in one hour
The average speed is the ratio of the total distance to the total time. Then the average distance covered in one hour by the bus is 60 kilometers.
What is speed?The distance covered by the particle or the body in an hour is called speed. It is a scalar quantity. It is the ratio of distance to time.
We know that the speed formula
[tex]\rm Speed = \dfrac{Distace }{Time }[/tex]
A bus traveled 63 km in the first hour 60 km in the second hour and 57 km in the third hour.
Then the average speed will be
[tex]\rm Average \ speed = \dfrac{Total \ distace }{Total \ time }\\\\\\Average \ speed = \dfrac{63 + 60 +57}{1+1+1}\\\\\\ Average \ speed = \dfrac{180}{3}\\\\Average \ speed = 60 \ km/h[/tex]
The average distance covered in one hour by the bus is 60 kilometers.
More about the speed link is given below.
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Substitute the given values A = 77 and h = 4 into the
formula A = bh. Then solve for the variable b.
Answer:
b=19.25
Step-by-step explanation:
Ok, so if you plug in 77 for A and 4 for h, you will get 77=4h. So from here, you have to divide 77 by 4, which is 19.25 and that is the answer for variable b.
which expression can be used to find the surface area of the following square pyramid
Answer:
[tex](1/2*4)*5+(1/2*4)*5+(1/2*4)*5+(1/2*4)*5+(4*4)=2*5+2*5+2*5+2*5+16=10^2+10^2+10^2+10^2+16^2=40^2+16^2=56^2[/tex]
Step-by-step explanation:
a triangle is 1/2 of the base x height. so the area of 4 triangles and the surface area of the base square is the total surface area.
Answer:
More info? Thanks =)
Step-by-step explanation:
PLEASE PLEASE HELP ASAP!!
Answer:
Step-by-step explanation:
What is the question asking
What are the opposites of 9, −3.5, 2.25, and 9
1
2
? Enter the answers in respective order, each separated by comma.
Answer:
-9, 3.5, -2.25, and -9
Step-by-step explanation:
I'm assuming you mean the opposite numerical value so, the opposite of a positive number is a negative one and vice versa.
please help me it's urgent
Answer:
4
Step-by-step explanation:
We are looking for when x approaches 1 from the left.
This occurs when x<1, so we use the first function.
Next, we just direct substitute 1 in the function.
[tex]2(1) + 2 = 4[/tex]
The answer is 4
how do I do this question?
Answer:
Choice C
Step-by-step explanation:
We are given the function:
[tex]\displaystyle \large{f(x)=3x+5}[/tex]
Let [tex]\displaystyle \large{y=f(x)}[/tex] therefore:
[tex]\displaystyle \large{y=3x+5}[/tex]
To find an inverse of function, swap the position of x and y:
[tex]\displaystyle \large{x=3y+5}[/tex]
Then solve or simplify the equation in term of y:
[tex]\displaystyle \large{x-5=3y}\\\displaystyle \large{\frac{x-5}{3}=y}\\\displaystyle \large{y=\frac{1}{3}x-\frac{5}{3}}[/tex]
Therefore, the answer is choice C.
__________________________________________________________
Summary
An inverse function is a function that swaps the position of domain and range, defined as notation [tex]\displaystyle \large{f^{-1}(x)}[/tex] or [tex]\displaystyle \large{y^{-1}}[/tex] generally. When finding an inverse function, make sure to swap position of range and domain, if given the interval.
Only one-to-one functions may have an inverse — multiple-to-one can not have an inverse such as quadratic function or any even-degree polynomial functions.
__________________________________________________________
Others
If you’re still curious or stuck in this question or have any doubts regarding my explanation, answer or this question — always let me know through comments!
Simplify the expression 21p + 9q2 + 10p + q2 by combining like terms.
Answer:
31p + 10q2
Step-by-step explanation:
Answer:
10q^2+31p
Step-by-step explanation:
Can somebody pls help me !
Answer: Second option
Step-by-step explanation:
This is just recalling the formula.
Complete this
proportion:
Answer:
AD/DC = AB/CB
Step-by-step explanation:
The effect of an angle bisector is to make the sides of the triangle on one side of the bisector proportional to the corresponding sides of the triangle on the other side of the bisector. Here, that proportion can be written ...
[tex]\dfrac{AD}{DC}=\dfrac{AB}{CB}[/tex]
Please help me!!!!!!!!!!!
the important thing you need to know in solving mathematics is to understand the question and the formulae that follws.for finding equations ur general formulae us:
y-y1=m(x-x1)
do not solve y and x.
the y1 and x1 are ur x and y values from ur coordinates respectively.
m is ur gradient or slope given.
plug in the values.
Step-by-step explanation:
y-y1=m(x-x1)
y-4=2/5(x-(-2))
the x-(-2) will change to positive thus giving you an equation of:
y-4=2/5(x+2).
option 1
hope i helped ❤
yeehaw new chaatatattatat
Answer:
heyyyyyyyy :P
Step-by-step explanation:
Answer:
Heyyyyyyyyyyyyyyyyyyyyyy :)
Kerrie goes to the mall with 8.40 she purchases a bracelet for 3.35 she buys lunch for 4.60 how much money does she have left
what mathematical strenght and skills did you develop in this lesson
Answer:
I have learned a lot in math, although it was years ago on of my favorite things to learn was to multiply and divide. They were not only easy but also fun.
Step-by-step explanation:
There is only one square whose perimeter and area is same. What is the length of each side of this square?
1) 5
2) 6
3) 3
4) 4
Answer:
4) 4
Step-by-step explanation:
A square with side lengths of 4 units will have the same perimeter and area.
4^2=16 square units
4*4=16 units
Can someone help me with this plz ☺️
Answer:
45.5
Step-by-step explanation:
b. At the circus, three adult tickets and five child tickets cost $51, and five adult tickets
and two child tickets cost $47. Which system of linear equations below can be used to
determine the price of each ticket?
Let x represent the cost of an adult ticket, and let y represent the cost of a child ticket.
Answer: x = $7, y = $6
Step-by-step explanation:
Let x be the cost of an adult ticket
Let y be the cost of a children's ticket
Translate these sentences to algebra:
At the circus, three adult tickets and five child tickets cost $51: 3x + 5y = 51
Five adult tickets and two child tickets cost $47: 5x + 2y = 47
Now we have two equations. Let's use substitution to solve.
3x + 5y = 51
3x = 51 - 5y
.: x = 17 - 5y/3
Now substitute this value of x into the second equation to find the numerical value of y:
5(17 - 5y/3) + 2y = 47
85 - 25y/3 + 2y = 47
-19y/3 = -38
-19y = -114
.: y = 6
Now find x:
x = 17 - 5y/3
x = 17 - 10
.: x = 7
So an adult ticket costs $7, and a child ticket costs $6 :)
Select the correct answer from each drop-down menu.
consider this expression.
le
?
123
2
9
-
The least common denominator of the two rational terms is
Answer:
2 And 9Step-by-step explanation:
The Least Common denominator of two reational terms is 2 and 9The LCD of 2 and 9 is 18You bet your friend that every time they say the word “like”, they owe you $0.25. By the end of the day, your friend has said “like” 18 times. How much money do they owe you?4.5?
Answer:
yes 4.5 is correct
Step-by-step explanation:
Answer:
Your friend owes you $4.50
Step-by-step explanation:
0.25 · 18 = 4.50
You spent $88.50 at Target. You happen to have a $25 gift card from your birthday. If the sales tax rate was 6.5%, how much did you end up paying total?
Answer:67.6275
Step-by-step explanation:
Directions: Solve each problem. Read carefully to be sure you know what the problem is asking. Draw rectangles to help you solve. 1. The perimeter of a rectangle is 70 feet, and the length is 25 feet. What is the width of the rectangle?
Answer:
10 feet
Step-by-step explanation:
Perimeter of a rectangle =2(l+b)
2(25+b)=70
50+2b=70
CLT
2b=70-50
2b=20
Divide both sides by 2
=10
A small bookshelf is
8
12
yard long. How many books can fit on the shelf if the width of each book is
24
yard? Explain.
HERE IS WHAT I GOT SO FAR PKEASEEEE. HELP I AM LOST
Answer:
how long is the shelf
Step-by-step explanation:
Answer:
16
Step-by-step explanation:
Dividing two fractions is the same as multiplying the first fraction by the reciprocal (inverse) of the second fraction.
Take the reciprocal of the second fraction by flipping the numerator and denominator and changing the operation to multiplication. Then the equation becomes
812×241=?
8
12
×
24
1
=
?
For fraction multiplication, multiply the numerators and then multiply the denominators to get
8×2412×1=19212
8
×
24
12
×
1
=
192
12
Since 192 divided by 12 equals 16 then,
19212=16
192
12
=
16
Therefore:
812÷124=16
8
12
÷
1
24
=
16
Which division problem does the number line below best illustrate? A number line going from 0 to 13. An arrow jumps from 0 to 3, from 3 to 6, from 6 to 9, and from 9 to 12. 12 divided by 3 = 4 9 divided by 3 = 3 12 divided by 2 = 6 16 divided by 4 = 4
Answer:
which might help. It sounds like you have 4 semicircles which can be thought of as a division problem 12/3 = 4. Note how I'm dividing by 3 which is the width of each section (eg: from 6 to 9 is 9-6 = 3 units)
Step-by-step explanation:
Answer:
idek i need help too!!
Step-by-step explanation:
-4x - 12 < 12
Solve for x:
Answer:
x > -6
Step-by-step explanation:
Isolate the variable by dividing each side by the factors that dont contain the varible
Inequality Form
x > -6
Interval Notion
( -6, ∞ )Arlington High School recently installed a new black-box theatre for local productions. They only had
room for 14 rows of seats, where the number of seats in each row constitutes an arithmetic sequence starting
with eight seats and increasing by two seats per row thereafter. How many seats are in the new black-box
theatre? Show the calculations that lead to your answer.
Answer: ANSWER*0.15 (15% is 15/100 or 0.15)
Step-by-step explanation:
An arithmetic sequence is a sequence where the difference between each consecutive term is the same.
The number of seats in the new black box is 294.
What is an arithmetic sequence?It is a sequence where the difference between each consecutive term is the same.
Example:
2, 4, 6, 8 is an arithmetic sequence.
We have,
Number of rows = 14
n = 14
a = 8.
d = 2
So,
The number of seats in the 14 rows is,
8, 10, 12, 14,.........
Now,
The sum of the arithmetic sequence.
= n/2 [2a + (n - 1)d ]
The number of seats in the new black box.
= 14/2 [ 2x8 + (14 - 1)2 ]
= 7 [ 16 + 26 ]
= 7 x 42
= 294
Thus,
The number of seats in the new black box is 294.
Learn more about arithmetic sequence here:
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select the digit in the thousands place for 689,234
Answer:
9
Step-by-step explanation:
well this one is rather simple you see the "4" is in the ones place and, going right, "3" is in the tens places and the "2"is in the hundreds place and that leaves the '9' in the thousands place.
Answer:
The remaining number in thousands units is 9.
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I hope help you :)
Kind regards, Antonio.
-2(x-7)²+11
solve for simple form
Answer:
Simpify: -2x² + 28x - 87Answer: −2x2+28x−87 is the simplified form for -2(x-7)²+11
NAME
DATE
PERIOD
9.
Kylie and Alyssa are working together to put 96 cookies on trays for the class to enjoy. Mrs. Grim
tells them to divide them up by 8. Kylie says that means there will be 8 cookies on 12 trays. Alyssa
disagrees and thinks there should be 12 cookies on 8 trays. Who is right? Why? (4 pts)
Answer:
I belive it should be 96 divided by 8 because it's 2 variable given to us. answer should be 12 according to this but if you want to decide the 96 cookies by unknown students/trays then you might loose. my best advice
What describes how the lengths in an actual object are related to the
lengths on a drawn representation of It?
Congruence
Similarity
Side length
Scale
Line a is parallel to line b. If the measure of <7 is 114 what is the measure of <4?
Using opposite by the same vertex and supplementary angles, it is found that the measure of angle 4 is of 66º.
What are opposite by the same vertex and supplementary angles?When two parallel lines are cut by a transversal, angles that are opposite in a vertex are congruent, that is, they have the same measure.When two angles are supplementary, the sum of their measures is of 180º.In this problem, angles 5 and 7 are opposite by the same vertex, hence:
m<7 = m<5 = 114º.
Angles 4 and 5 are supplementary, hence:
m<4 + m<5 = 180º.
m<4 = 66º.
The measure of angle 4 is of 66º.
More can be learned about supplementary angles at https://brainly.com/question/2046046