Answer:
Tom's height = x = 64 inches
Sally's height = y = 60 inches
Step-by-step explanation:
Let us represent
Tom's height = x
Sally's height = y
Tom is 4 inches taller than Sally
x = y + 4
Together their heights equal 124 inches
x + y = 124
We substitute y + 4 for x
y + 4 + y = 124
2y + 4 = 124
Collect like terms
2y = 124 - 4
2y = 120
y = 120/2
y = 60
Solving for x
x = y + 4
x = 60 + 4
x = 64
Therefore,
Tom's height = x = 64 inches
Sally's height = y = 60 inches
The diagram shows the distance between my home, H, and two towns, A and B.
It also shows information about journey times.
A
H
10 miles
Journey time
20 minutes
20 miles
Journey time
30 minutes
a)
What is the average speed of the journey from my home town to A?
b)
What is the average speed of the journey from my home town to B?
C
I drive from town A to my home and then to town B.
The journey time is 50 minutes.
What is my average speed?
Answer:
10 MILES
20 MINUTES
20 MILES
30MINUTES
Answer:
a)30 mph
b.)40 mph
c.)36mph
Step-by-step explanation:
Evaluate the function f(x)=-5x2 + 4x -6
when x = 2
f(x)=-5x2+4x-6
f(2)= -5*2*2+4*2-6
f(2)= -20+2
f(2)=-18
Celeste used 20 inches of ribbon from a spool that holds 36 inches of ribbon. What is the decimal equivalent for the amount of ribbon Celeste uses.
Answer: 0.56
Step-by-step explanation:
The spool holds a total of 36 inches of ribbon and out tis amount, Celeste used 20 inches of ribbon.
Celeste therefore used 20 / 36 of the ribbon available from the stool.
In decimal this is:
= 20 ÷ 36
= 0.5556
= 0.56
The results of a survey show that baseball is the favourite sport for 18 out of 25 people what is the percent probability for this?
DONT SEND A LINK
Answer:
72%
Step-by-step explanation:
A smart freind of mi e says this is the answer
State whether the following is true or false. If it is false make it true :
24 < 6 + 9
Answer:
Its false 24>6+9
Step-by-step explanation:
6+9=15
hey can someone help me pls immediately!!! i’ll mark brainiest if u don’t guess or leave links. pls don’t guess tho actually know it if ur going to say the answer
Answer:
$9
Step-by-step explanation:
Answer:
$9
Step-by-step explanation:
between 2 and 4 is 3 sandwiches.
There is a point at 3 and 9
(3,9) $9 for 3 sandwiches
The area of a rectangle is 140 ft. The length of one side is 10 ft. What is the width?
FAST PLEASE
Answer:
14
Step-by-step explanation:
An investment company guarantees that if you deposit $10,000 into one of their investment accounts, your money will grow by 5% each year.
Write an exponential equation that represents how much money, m, you would have in a certain number of years, t.
Answer:
m= 10,000(1+.05)^t
Step-by-step explanation:
hope this helps:)
Please answer! I will mark you Brsinliest! The pictures are together.
Answer:
V = 65.97π
Step-by-step explanation:
Answer:
g00gle is a really great source for these questions!
Just put in the information and they do they work!
Step-by-step explanation:
66 inches cubed since you round up .03 decimals!
or 65.97 if you aren't supposed to round
10 points, please help
Answer:
C
Step-by-step explanation:
What is the range of their ages?
41
40
37
Answer:
41-37=4
Answer: 4
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
help pls i forgot how to solve this
Answer:
x = 45
Step-by-step explanation:
Brainliest Please!
Red lights flash every 6 seconds. Blue lights flash every 8 seconds. The store owner turns on the lights. After how many seconds will the lights flash at the same time for the first time
encuentra el desarrollo exponencial de cada número 87 69 08
Answer:
.
Step-by-step explanation:
Boat A and Boat B are racing across a bay. Boat A is 6 miles ahead of Boat B. Boat A has a top speed of 36 miles per hour, but Boat B has a top speed of 44 miles per hour.
Part A:
If both boats are traveling at their top speeds, how long will it take Boat B to catch up with Boat A?
Part B:
How far will Boat B have traveled when it has caught up to Boat A?
Answer:
45 min = 0.75 hours
Step-by-step explanation:
Since Boat A is 6 miles ahead of boat B and has a top speed of 36 miles per hour, the distance it moves in time, t is d = 6 + 36t where 36t is the distance it moves in time, t with speed 36 miles per hour.(36t = 36 miles per hour × t hours)
Also, since Boat B has a top speed of 44 miles per hour, the distance d' it moves in time, t with this speed is
d'= 44t (44t = 44 miles per hour × t hours)
When Boat B catches up with Boat A, their distances are equal. So,
d = d'
6 + 36t = 44t
subtracting 36t from both sides, we have
44t - 36t = 6
simplifying
8t = 6
dividing through by 8, we have
t = 6/8 hours
t = 0.75 hours
t = 0.75 × 60 min
t = 45 min
Given that f(x) = 2x – 1, find f(6).
Your answer:
6
7
11
13
Answer:
11
Step-by-step explanation:
2 times 6 is 12 minus 1 is 11
Input interpretation:
2 x - 1 where x = 6
Result:
11
Leslie wants to buy as many
bookmarks as she can at the book fair.
Each costs 75 cents. If she brings
$5.50, how many can she afford?
OL
3 9/12 + (4 7/12 + 5/12) = 3 9/12 + ____?
Answer:
5
Step-by-step explanation:
4 7/12 + 5/12 = 4 12/12 which equals 5
Answer:
3 9/12 + (4 7/12 + 5/12) = 3 9/12 + 5
Step-by-step explanation:
A triangle has an area of 8 cm2 and a base of
3 cm. What is the height of the triangle?
Show your work!
Answer:
h = 1 1/3
Step-by-step explanation:
So when we divide base x height by two we get
Lets multiply 8 x 2
16
So now lets divide by 3
16 / 3 = 1 1/3
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
What is 1?1?1?1=6 pls help my brain id hurt rn
Answer:
(1+1+1)!*1=6
Step-by-step explanation:
Is it possible to create a line segment with "infinite
steepness?
If so, do it, and explain why you think you're right
If not, explain why it's impossible.
Sign out
us
133
Answer:
No, it is not possible
Step-by-step explanation:
Required
Is it possible to have a line segment with: [tex]m = \infty[/tex]
To answer this question, we will interpret the steepness as slope.
So, we have:
[tex]m = \infty[/tex]
The interpretation of a line with: [tex]m = \infty[/tex] is:
It starts from (x,y_1) and ends at (x,y_2)
When the slope (m) is then calculated, we have:
[tex]m = \frac{y_2 - y_1}{x_1 - x_1}[/tex]
[tex]m = \frac{y_2 - y_1}{0}[/tex]
[tex]m = \infty[/tex]
What this means is that, the line has no end points.
A line segment as described here means a line that has endpoints (i.e. a finite starting point and a finite finish point)
So, we've established that: [tex]m = \infty[/tex] means no endpoints and a line segment has end points, then we can conclude that it is not possible to create a line segment with [tex]m = \infty[/tex]
Steepness of a line is the rise or fall of it at a sharp angle.The Is it not possible to create a line segment with infinite steepness, as the slope of the such line will be infinite whether a line is plotted with finite points.
Steepness-Steepness of a line is the rise or fall of it at a sharp angle. The slope of the line describe the steepness of a line.
Infinite steepness-A infinite steepness refers to a vertical line on the graph. When the line with infinite steepness plotted on the graph it is only parallel to the y axis. The change on the x axis is zero and does not move in the x axis, when a line has infinite steepness.
To understand it better suppose a line is passed through the point [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] points. For such line the slope of the line can be given as,
[tex]m=\dfrac{y_2-y_1}{x_2-x_1} [/tex]
The line with infinite steepness does not move in the x axis. The coordinate of the x axis same for the line. Thus,
[tex]x_2=x_1[/tex]
The slope for such line is,
[tex]m=\dfrac{y_2-y_1}{x_1-x_1} [/tex]
[tex]m=\dfrac{y_2-y_1}{0} [/tex]
[tex]m=\infty[/tex]
Thus the slope of the line is infinite. But the line With no finite point is not possible to plot.
Hence the Is it not possible to create a line segment with "infinite steepness, as the slope of the such line will be infinite whether a line is plotted with finite points.
Learn more about the steepness of the line here;
https://brainly.com/question/806542
ASAPPPPPPPP DUE IN 3 MIN
Answer:
72
Step-by-step explanation:
Answer:
h = 6
Step-by-step explanation:
Area of a trapezoid formula:
[tex]A=\frac{a+b}{2} *h\\\\h=2*\frac{A}{a+b}[/tex]
Given:
A = 48
a = 4
b = 12
Work:
[tex]h=2*\frac{A}{a+b} \\\\h=2*\frac{48}{12+4} \\\\h=2*\frac{48}{16}\\\\h=2*3\\h=6[/tex]
Water is leaking out of a tank at a steady rate the tank started with 75 gallons after 15 hours the tank has 33 gallons of water
Answer:
The equation will be "[tex]y=-2.8 x+75[/tex]".
Step-by-step explanation:
The given values are:
Started with,
= 75 gallons
After 15 hrs,
Tank has,
= 33 gallons
Now,
The slope will be:
= [tex]\frac{33-75}{15}[/tex]
= [tex]\frac{-42}{15}[/tex]
= [tex]-2.8[/tex]
Thus,
The equation is "[tex]y=-2.5x+75[/tex]".
i really need help please (links will be reported)
Answer: all the ones that do not have a negative sign in front easy.
i need help factoring x^2 + 6. can anyone help me?
Answer:
The expression is not factorable with rational numbers.
Step-by-step explanation:
In Exercises 1 and 2, determine whether the triangles are similar. If they are,
write a similarity statement. Explain your reasoning.
Answer:
1) yes, all of their angles are equal. (75°, 45°, and 60°)
2) No, their angles are not equal. (42°, 48°, 90° vs 58°, 32°, 90°)
Step-by-step explanation:
1.
ΔWXY and ΔRST are similar because they have equal angles.
2.
ΔJKM and ΔKLM are not similar because the angles are not equal.
What is a triangle?A triangle is a 2-D figure with three sides and three angles.
The sum of the angles is 180 degrees.
We can have an obtuse triangle, an acute triangle, or a right triangle.
We have,
1.
In ΔWXY,
∠X = 75
∠Y = 60
∠W = 180 - (75 + 60) = 180 - 135 = 45
In ΔRST,
∠S = 45
∠R = 60
∠T = 180 - (45 + 60) = 180 - 105 = 75
Now,
We can say that,
ΔWXY and ΔRST are similar because they have equal angles.
2.
In ΔJKM,
∠J = 42
∠M = 45
∠K = 180 - (42 + 45) = 180 - 87 = 93
In ΔKLM,
∠K = 58
∠M = 90
∠L = 180 - (58 + 90) = 180 - 148 = 132
ΔJKM and ΔKLM are not similar because the angles are not equal.
Thus,
ΔWXY and ΔRST are similar because they have equal angles.
ΔJKM and ΔKLM are not similar because the angles are not equal.
Learn more about triangles here:
https://brainly.com/question/25950519
#SPJ2
Simplify this expression
(√2+√3)(√5 -√7)
Answer:
Step-by-step explanation:
Answer:
pretty sure its the second one
Step-by-step explanation:
The first and last terms in a proportion are called the
amar
Answer:
What is a Proportion? The four numbers a, b, c and d are known as the terms of a proportion. The first a and the last term d are referred to as extreme terms while the second and third terms in a proportional are called mean terms.
Step-by-step explanation:
Answer:
False
Step-by-step explanation:
Pls help
Pls help
Pls help
Answer:
Green) 24in
Yellow) 31in
Blue) 27in
Step-by-step explanation:
Just add each number of the one shape.
To find the Area:
Multiply each number
To find Perimeter:
Add each number
i need help please help me