Answer:
Step-by-step explanation:
the truck mover 3 km one way, 3 km back, so he moves 6 km
one way the truck needs 30 min, on the way back 20 min
so we have 6 km in 50 min
v=distance/time
v one way=3km/30 min=0.1 km/min
v on the way back=3 km/20min=0.15 km/min
v average =0.1+0.15=0.125 km/min
or 7.5 km/hour
9+(-1)=8 as a subtraction problem
Answer:
9 - 1 = 8
Step-by-step explanation:
We can simplify the equation by changing 9 +(-1) to 9 - 1, therefore making it a subtraction problem.
Three vertices of parallelogram DEFG are
D(0, 2), E(-1, 5), and G (4, 0). Find
the coordinates of F.
Answer:
F(3,3)
Step-by-step explanation:
The coordinate of F is (3, 3).
GivenThree vertices of parallelogram DEFG are D(0, 2), E(-1, 5), and G (4, 0).
What is the formula to find the midpoints?Diagonals of a parallelogram bisect each other, meaning they divide each other into equal parts.
The formula is used to find the midpoints are as follows;
[tex]\rm \dfrac{x_1+x_2}{2} , \ \dfrac{y_1+y_2}{2}[/tex]
Let (x, y) = coordinates of vertex F.
DF and EG are diagonals of parallelogram DEFG, therefore:
The midpoint of DF = midpoint of EG
Then,
The midpoint of D(0, 2) and F(x, y) is;
[tex]\rm \dfrac{x_1+x_2}{2} , \ \dfrac{y_1+y_2}{2}\\\\\dfrac{0+x}{2}, \ \dfrac{2+y}{2}[/tex]
The midpoint of E(-1, 5) and G(4, 0) is;
[tex]\rm \dfrac{x_1+x_2}{2} , \ \dfrac{y_1+y_2}{2}\\\\\rm \dfrac{-1+4}{2} , \ \dfrac{5+0}{2}\\\\\dfrac{3}{2}, \dfrac{5}{2}[/tex]
Comparing the equation;
[tex]\rm \dfrac{0+x}{2} = \dfrac{3}{2}\\\\\dfrac{x}{2} = \dfrac{3}{2}\\\\x=3[/tex]
[tex]\rm \dfrac{2+y}{2} =\dfrac{5}{2}\\\\2+y =5\\\\y = 5-2\\\\y =3[/tex]
Hence, the coordinate of F is (3, 3).
To know more about Midpoints click the link given below.
https://brainly.com/question/2994861
Help it's timed! I’m gunna give Brainliest
Answer:
Step-by-step explanation:
second one
Answer:
middle table
Step-by-step explanation:
The middle table has the same set of ordered pairs as the given set.
the length of each side of a square increases by 40%. by what percent does the area of the square increase?
Answer:
96%
Step-by-step explanation:
If you substitue values for the sides of the square, you can easily solve this problem.
If the side of each square was 10, then the area of the square would be 100. A 40% increase in side length would mean 10×.4 = 4 --> 10+4= 14.
14 would be your new side length meaning that the area would be 196.
From this, you can see that there is an increase by 96 from the original to the 40% increase. Since the value was initially 10, we can turn the 96 increase into 96 percent.
Answer:
40% iincrease
Step-by-step explanation:
A=l^2 (area of a square) let the unknown dimensions be x Area of the original square without change=(x^2) Area of the square undergoing change =(1.4x^2) thus,% change=new-old/old*100% 1.4-1.0=0.4*100=40%
what is 25% more than 6 feet
Answer:
7.5 I guess?
Step-by-step explanation:
??
Step-by-step explanation:
l dont understand this can you explain
Miguel and three of his friends went to the movies. They originally had a total of $40. Each boy had the same amount of money and spent $7.50 on a ticket. How much money did each boy have left after buying his ticket? Write and solve an equation that represents he situatio.
Answer:
x = (40/4)-7.50
x= (10)-7.50
x = 2.50
Step-by-step explanation:
each boy had 2.50 left after the movie because miguel went with 3 other boys, which makes four of them all together. If they had forty dollars all together and all had the same amount of money, you can determine that amount by dividing forty(total money) by 4(number of boys). Which gets you to the answer of ten dollars each. Then you subtract the ticket cost(7.50) from 10 dollars, which gets you to 2.50 left over.
On Tuesday, Ashley walked the first dog for 27 minutes, the second dog for 35 minutes, and the third dog for 15 minutes. If she started walking the first dog at 8:00 am, what time did she finish walking all the dogs?
Answer:
9:17
Step-by-step explanation:
Answer: 9:17 am
Step-by-step explanation: I added all the minutes together and got 77 minutes. Then I simplified the 77 minutes into an hour and 17 minutes. Then I added the 1hour and 17minutes to 8:00 am.
Carter has $105 to buy a cake and pizza for his cousin's birthday party. He knows he needs to set aside $25 for the cake, and the rest of the money he can spend on pizzas. Each pizza costs $9.25. How many pizzas can Carter afford to buy? Use the inequality 9.25x + 25 ≤ 105
Answer:
8
Step-by-step explanation:
Here, we want to use the inequality to know the number of pizza that can be bought
We simply proceed to solve the inequality recently and we have the following;
9.25x + 25 ≤ 105
9.25x ≤ 105-25
9.25x ≤ 80
x ≤ 80/9
x ≤ 8.65
Since we cannot have fractional pizzas, what he can afford is rather written as 8
ldentifying Slope and y-Intercept of a Line
y
ldentity the slopo and y-intercept of each linoar function's eqution
x+3
slope -3, y-intercept at
V1- 3x
X-3
V 3-1
slope
1: y-intercept at-3
slope 1:y-intercept at 3
slope
3. y-intercept at -1
D ntuO
Done
Answer:
i think questions no 3 is the answer of this question
what is the x intercept of the line represented by the equation below 3x+6y=30
Answer:
(10,0)
Step-by-step explanation:
3x+6y=30
3x+6(0)=30
3x=30
x=10
Answer:
hmmm? well I guess I can solve for x in relation to y and vice versa
but to actually solve for x and y you will need another equation of x and y
3x=30+6y
x=10+2y=2y+10
-6y=30-3x
-2y=10-x
2y=-10+x=x-10
y=(1/2)x-5
well, y=(1/2)x-5 is a line with slope 1/2 and y-intercept (0,b) of
Lin found the area of a rectangle with a of length 5 in and a width of 3 inches, to be 15 square inches. Lin creates another rectangle that is a scaled copy with a scale factor of 2. What is the area of the new rectangle? How did you find it?
Answer:
60in^2Step-by-step explanation:
Step one:
given data
lenght L= 5in
width W= 3 in
area= L*W
area= 5*3= 15in^2
Step two:
The rectangle was scaled by 2, this means that the dimensions were doubled
therefore the lenght and width will be
L=5*2= 10
W=3*2= 6
hence the area is
Area= 10*6= 60in^2
Cherries cost $2.50 per pound and mangoes cost $3 per pound. Kal bought a total of 7 pounds of cherries and mangoes for $20. Write a system of equations to represent the situation.
Answer:
x + y = 7
2.5x + 3y = 20
Step-by-step explanation:
cherries = $2.5 per pound
mangoes = $3 per pound
7 pounds of cherries & mangoes for $20
unkown x number of pounds in cherries
unknown y number of pounds in mangoes
x + y = 7
2.5x + 3y = 20
A circle has a diameter with the endpoints at (–7, –7) and (–1, 1). What is the equation of the circle?
Answer:
8.4
Step-by-step explanation:
d=√(x2-x1)+(y2-y1)
d-√ (-1-(-7))^2+(-1-(-7))^2
d=√ (-1+7)^2+(-1+7)^2
d=√ (6)^2+6^2
d=√ 36+36
d=√ 72
d=6√ 2=8.4852
d=8.4
A music store bought a CD set at a cost of $20. When the store sold the CD set, the percent markup was 35%. Find the selling price.
The selling price was s (Round to the nearest dollar as needed.)
Answer:
30.8 I believe is your answer
Step-by-step explanation:
Choose the prime number. 25, 27, 31, 32, 44, 45
Answer:
the prime number is 31
Step-by-step explanation:
hi I got it right
PLEASE HELPP AND SHOW WORK
Answer:
x = 25
Step-by-step explanation:
From the picture attached,
ΔABC and ΔADE are the similar triangles.
Therefore, their corresponding sides will be in the same ratio.
[tex]\frac{\text{AB}}{\text{AD}}=\frac{\text{AC}}{\text{AE}}=\frac{\text{BC}}{\text{DE}}[/tex]
[tex]\frac{\text{AB}}{\text{AD}}=\frac{\text{BC}}{\text{DE}}[/tex]
And AB = AD + DB
= 2(AD) [Since, AD = DB]
By substituting these values,
[tex]\frac{\text{2AD}}{\text{AD}}=\frac{\text{34}}{\text{(x-8)}}[/tex]
2 = [tex]\frac{34}{x-8}[/tex]
x - 8 = [tex]\frac{34}{2}[/tex]
x - 8 = 17
x = 17 + 8
x = 25
In order for the parallelogram to be a square, x=?
Answer:
x=7 Thx pls mark as brainliest
Step-by-step explanation:
In order for a polygon to be a parallelogram, the polygon needs to be a four-sided rectangle type shape, with two sets of parallel sides.
For this square to be a parallelogram, all
4
angles need to be
90
º
. This will give us to the two sets of parallel sides.
Knowing this, and the fact that on of the angles is being bisected, we need only multiply the defined angle by two and set it equal to
90
.
can someone help me with this?
Answer:
A'(-2,0) B'(-3,5) C'(0,4)
Step-by-step explanation:
all u have to do is count each original point 3 units left and 4 units up like what the rule for the translation says.
Answer:
A. (-2,0)
B. (-3,5)
C. (0,4)
1
What are numbers when Rs 880 is divided in to the ratio of 1/5:1/6
Answer:
733.3
Step-by-step explanation:
The number is
880÷1/5:1/6
880÷(1/5×6)
880÷6/5
880×5/6
440×5/3
2200/3
733.3
is -4x-8=4x+8 one solution no solution or many solutions
Answer:
One solution.
Step-by-step explanation:
This question has different coefficients so it has one solution.
Which of the following terminating decimals is equivalent to StartFraction 3 over 8 EndFraction?
0.250
0.375
0.380
0.830
Given:
The fraction value is [tex]\dfrac{3}{8}[/tex].
To find:
The terminating decimal which is equivalent to the given fraction value.
Solution:
We have,
[tex]\dfrac{3}{8}[/tex]
Multiply and divide the numerator and denominator by 1000.
[tex]=\dfrac{3}{8}\times \dfrac{1000}{1000}[/tex]
It can be written as
[tex]=\dfrac{3000}{8}\times \dfrac{1}{1000}[/tex]
[tex]=375\times \dfrac{1}{1000}[/tex]
[tex]=\dfrac{375}{1000}[/tex]
[tex]=0.375[/tex]
Therefore, the correct option is B.
Answer:
0.375
Step-by-step explanation:
ya
William bought 16 gallons of gas for $37.76. Regina spent $14.64 on 6 gallons of gas. Who got a better deal per gallon?
1 gallon of gas for William= 37.76 ÷ 16= 2.36 $
1 gallon of gas for Regina= 14.64 ÷ 6= 2.44 $
so william got a better deal per gallon.
WHICH OF THE FOLLOWING IS TRUE FOR THIS SITUATION?
Simplify.
34−4x+12x−12+12x
Enter your answer in the box.
Do not use decimals in your answer.
Answer:
22 - 28x
Step-by-step explanation:
34−4x+12x−12+12x
you wanna combine like terms
34 - 16x + 12 + 12x
34 - 28x + 12
22 - 28x
Plz help. Will give brainliest for the best answer
Answer:
17.3
Step-by-step explanation:
You use sine and use SOH of SOHCAHTOA. Plug in sin(25)=o/41. Do sin(25) times 41 to find o. Hope this helps.
Please help! I’ll give brainliest!
Answer:
8
Step-by-step explanation:
it would be 8 as 17 is on the y axis and then you go along the corridor and down the stairs and the dot is on 8
Answer:
8
Step-by-step explanation:
scale goes up in 2s
read from X axis
3. Two sides of a triangle measure 17 inches
and 9 inches. Which cannot be the length
of the remaining side?
A. 21
B. 26
C. 9
D. 15
If BC
is the image of XY
after a rotation about the origin, then what is always true about BC
?
A
BC
is a vertical segment.
B
BC
is a horizontal segment.
C
BC
is in the same quadrant as XY
.
D
The length of BC
is the same as XY
.
Answer:
Step-by-step explanation: a
If f(x)=|x+7|, find f(−12).
−19
−5
5
19
Answer:
5
Step-by-step explanation:
insert f(-12) for f(x) and solve
f(-12)=|-12+7|
add -12 and 7
f(-12)=|-5|
absolute value makes it positive
f(-12)=5
If f(x)=|x+7|, the value of f(-12)=5
Given :
the function f(x)=|x+7|. Lets find out f(-12)
f(x) is an absolute function . Absolute function always gives us positive value .
for example |-6|=6
In f(-12) the value of x is -12
To find f(-12) we replace x with -12 in f(x).
[tex]f(x)=|x+7|\\f(-12)=|-12+7|\\f(-12)=|-5|\\f(-12)=5[/tex]
so, we got f(-12)=5
The answer is 5
Learn more : brainly.com/question/19661937
help pslslslsllsllslsllsllslslsllsllsls
Answer:
1. c
2. b
Step-by-step explanation: