Answer:
A= 10
B= -10
C and D both = 11
Two trains, Train A and Train B, weigh a total of 510 tons. Train A is heavier than Train B. The difference of their weights is 484 tons. What is the weight of each train?
Answer:
Train A is 497 tons and Train B is 13 tons
Step-by-step explanation:
Let a represent the weight of Train A, and b represent the weight of Train B
Set up a system of equations:
a + b = 510
a - b = 484
Solve by elimination by multiplying the top equation by -1
-a - b = -510
a - b = 484
Add these together, and solve for b:
-2b = -26
b = 13
Find the weight of Train A by plugging in 13 as b into one of the equations, and solving for a
a + b = 510
a + 13 = 510
a = 497
So, Train A is 497 tons and Train B is 13 tons
who want brainlist???
Answer:
its the 3rd one
Step-by-step explanation:
because x=4 and y=28 so 4 times 7 =28
. A standard die is rolled twice, then a card is
chosen at random from a standard deck.
How many outcomes are possible?
Answer:
64??? take it with a grain of salt but i think its 64
Step-by-step explanation:
There are 6 sides to a die and if its rolled twice thats 12 possible answers and then a standard deck has 52 cards so thats 12+52=64
Answer:
100
Step-by-step explanation:
2.3 lb ≈ __ kg
big ideas math
Answer:
1.043kg
Step-by-step explanation:
2.3lb = 1.043 kg
I Honestly Don't Know The First Step To Solving This
Answer:
I can pop it into the calculator for you if you'd like.
Step-by-step explanation:
I can edit my answer to give the answer to you.
Paul wants to visit his aunt who lives 300 miles away from his house. He drives his car at about 50 miles an hour. If X represents the time spent driving and why represents the distance from his aunts house which scatterplot could represent the situation
Answer:
It would take 6 hours.
An equation for that could be: 50x = 300 (X is how long it would take)
So 50 mph• X (time spent) = 300 miles
You didn't give me any scatterplots to look at so I can't help you with that sorry
The diameter of a circle is 36 inches. What is the circle's area?
Use 3.14 as pi
Step-by-step explanation:
Given
diameter (d) = 36 inches
Radius (r) = d / 2 = 36 / 2 = 18 inches
Now
Area of the circle
= πr²
= 3.14 * 18²
= 1017.36 inches²
Hope it will help :)❤
A 15 ft tall tree with shadow of 25 ft, What is the length from end of shadow to top of tree?
Answer: A 29.2
Step-by-step explanation:
Answer:
The answer is 29.155, rounded to 29.2! Good luck!
PLEASE HELP ASAP!!!!
Answer: Im going to say C
Step-by-step explanation: Because the lines both look the same they could be even.
1/2 + 2/3 + 3/4, as a fraction
Answer:
D
Step-by-step explanation:
6/12+8/12+9/12=23/12=1 11/12
Answer:
D. 1 11/12
Step-by-step explanation:
Let's set up our common denominator first. To do this we need to find a number divisible by 2, 3, and 4.
Multiply 3 by 4 and you'll come out with 12. 12 is divisible by 2.
Now, multiply your fractions by the numbers they need to get the denominator to 12.
1/2 x 6/6 = 6/12
2/3 x 4/4 = 8/12
3/4 x 3/3 = 9/12
Add your numerators.
6 + 8 + 9 = 23.
Your fraction should look like 23/12.
Subtract 12 from 23 and you should get 11. Because 12 equals a whole, we can go ahead and put one.
1 and 11/12.
Which equation has a slope of -4 and a y-intercept of -2?
Answer:
y=-4x-2
Step-by-step explanation:
y=mx+b where m=slope and b=y-intercept.
Find the area of each circle to the nearest tenth. Use 3.14 for pi.
Answer:
a=12.56 b=3.14 c=50.24 d=78.5 e=4.5216 f=63.585
Step-by-step explanation:
USE A CALCULATOR!
What equation(s) could represent the volume of the cylindrical barrel when completely filled with
water?
Answer:
Volume of cylinder = 1,156.57 cm³
Step-by-step explanation:
Given:
Radius R = 4 cm
Height of cylinder = 23 cm
Find:
Volume of cylinder
Computation:
Volume of cylinder = πr²h
Volume of cylinder = (22/7)(4)²(23)
Volume of cylinder = (22/7)(16)(23)
Volume of cylinder = 1,156.57 cm³
Can someone please help me with math.
Answer:
neither positive nor negative
Step-by-step explanation:
In order to identify a type of correlation the points have to form where we can draw a line through the points and most of the points will be near that line drawn.
Because most of the points graphed are scattered we cannot identify if it has a positive or negative correlation
Find the area of the shaded polygons
Answer:
40 Square Units
Step-by-step explanation:
Easy way to find area: Diagonal 1 * Diagonal 2 divide by 2 = your answer
Diagonal 1 (AC) = 5 + 5 = 10
Diagonal 2 (BD) = 4 + 4 = 8
10 + 8 = 80, 80/2 = 40
Answer: 40 square units
f(x) = x^2 + 16x + 60
Find the vertex
Answer:y
=
(
x
−
8
)
2
−
4
Step-by-step explanation:maybe
45 percent of what is 27
Answer:
x = 60
Step-by-step explanation:
We have, 45% • x = 27
or,
45 /100 • x = 27
Multiplying both sides by 100 and dividing both sides by 45,
we have x = 27 • 100/ 45
x = 60
Two Way Table 1
SUV Sedan Totals
Male
21
39
60
45
180
Female
Total 156
84
The two-way table represents the results of a random survey taken to determine the preferred vehicle for male and female drivers.
Given that the participant is a female, which choice is the conditional relative frequency that she prefers an SUV?
es )
A)
0.25
B)
0.55
C)
0.75
D)
0.87
Answer: 0.75
Step-by-step explanation: took the same question
Answer:
0.75
Step-by-step explanation:
A 9 pound block of butter is delivered each morning to restaurant recipe for one pot of soup cause for 6 ounces of butter using all of the butter how many pot of soup can the restaurant make each day?
Answer:
24
Step-by-step explanation:
1 pounds = 16 ounces
9 pounds = 144 ounces
144 ÷ 6 = 24
Help please Anyone please help ill give brainlyest if u help with answers please help me anyone help please
Use pythogorean theorem xd
answer 1) sqrt((15.25)^2-(2.75)^2)
etc. and so on
Answer:
1. 15
2. 47.8
3. 5√185
4. 34
Step-by-step explanation:
A recipe calls for 13 cup of flour and 25 cup of cinnamon. How many cups of cinnamon are needed for each cup of flour?
Answer:
1.92
Step-by-step explanation:
Given :
Cups of flour = 13
Cups of cinnamon = 25
Number of cinnamon cups needed for each cup of flour :
Number of cinnamon cups / number of cups of flour
25 / 13
= 1.923
Hence, about 1.92 cups of cinnamon is needed per cup of flour
What to say back if someone says shut up in a rude way?
Answer:
say ok bye and walk away
Step-by-step explanation:
what is the value of the expression 8-(2 cubed +48) /8
Answer:1.5
Step-by-step explanation:
what function is equivalent to f(x)=-4(x+7) -6
Answer:
Step-by-step explanation:
I need help what is 19-4.25
The answer is 14.15 :)
Consider the original parallelogram and the reduction.
A parallelogram with side lengths 18 centimeters and 45 centimeters. A second parallelogram with side lengths A and 5 centimeters.
Figures not drawn to scale.
What is the length of side A in the new parallelogram?
2 cm
9 cm
90 cm
162 cm
i believe it is a but someone pls confirm thx
I can confirm that it is A as I took the test and got 100%.
The length of side A in the new parallelogram will be [tex]2[/tex] cm.
What is Scale Factor ?Scale Factor is defined as the ratio of size of new image formed to the size of old image.
We have,
A parallelogram with side lengths [tex]18[/tex] centimeters and [tex]45[/tex] centimeters.
And,
A second parallelogram with side lengths [tex]A[/tex] and [tex]5[/tex] centimeters.
Now,
Scale Factor [tex]=\frac{size\ of\ new\ image}{size\ of\ old\ image}[/tex]
So,
Now, Comparing sides ,
We get,
Scale Factor [tex]=\frac{45}{5}=9[/tex]
i.e. the second parallelogram have Scale Factor of [tex]9[/tex].
So,
Other sides of both parallelograms will be of same Scale Factor.
i.e.
[tex]=\frac{18}{A} =9[/tex]
⇒
[tex]A=2[/tex] cm
Hence, we can say that the length of side A in the new parallelogram will be [tex]2[/tex] cm.
To learn more about scale factor click here
https://brainly.com/question/22312172
#SPJ2
Factor the expression: 14x + 21y – 7z
Answer:
7 ( 2x + 3y - z)
Step-by-step explanation:
To factor this expression, you need to find the GCF, which is 7.
7 ( 2x + 3y - z)
Answer:
7(2x+3y-z)
Step-by-step explanation:
You have to factor by graphing !
3 5 of the first group are right-handed. 80% of the second group are right-handed. What fraction of the class is right-handed?
Answer:
7/10
Step-by-step explanation:
To make things simple, let's turn 80% into a fraction, 8/10. To get a common denominator let's turn 8/10 into 4/5. Since they are both of equal size, the first group would have 2/5 left-handed people and the second 1/5 left-handed people. Let's imagine that each group has 5 people in it. There would be 10 people in total. There is 1 person for each fifth so we can add now. 4 + 3 = 7 right handed people. To check, 2 + 1 = 3 and 3 + 7 = 10. so 7/10 of the class is right-handed.
HELP IM SO CONFUSED about this
Answer:
180
straight
Step-by-step explanation:
Hello There
So we are given that angle a is equal to 11x + 37
we are also given that x = 13
because we are given the value of x we can simply find the measure of angle A by plugging in 13 to x into the expression
so basically angle A = 11 ( 13 ) + 37
11 * 13 = 143
143 + 37 = 180
now we want to classify the angle
here are the angle types and what they measure
(let x be measure of angle)
acute 0 < x < 90
so an acute angle has a measure of less than 90 degrees
the measure of angle A is 180 degrees so we can clarify that it is not an acute angle
right angle x = 90
a right angle has a measure of 90 degrees
angle a has a measure of 180 degrees therefore it is not a right angle
obtuse angle 90 < x < 180
the measure of an obtuse angle must be less than 180
because angle a = 180 it is not classified as an obtuse angle
straight angle x = 180
the measure of a straight angle is 180 degrees
angle a measure 180 degrees so we can conclude that angle a is a straight angle
PLEASE HELP ME ON THIS.
9514 1404 393
Answer:
D) 8
Step-by-step explanation:
The similarity statement tells us ...
RS/ST = BC/CD
(11x -4)/70 = 60/50
11x -4 = 70(60/50) = 84 . . . multiply by 70
11x = 88 . . . . . . . . . . . . . . .add 4
x = 8 . . . . . . . . . . . . . . . divide by 11