Answer:
train b.
Step-by-step explanation:
becus of the 150 tons and 100 tons
Answer:
Train A: 125 tons
Train B: 25 tons
Step-by-step explanation:
We can write the situation as a+b=150, and we can also write the value for train b as a-100=b.
To make the equations have only one variable, we can use the substitution method to create a+(a-100)=100. In this, since we know what b equals, we were able to replace the b in the first equation with the value of b in the second equation. Next, we solve the problem for a.
a+(a-100)=150
a+a-100=150
2a-100=150
+100=+100
2a=250
250/2=125
a=125
Now that we know that train A is 125 tons, we can plug 125 in the equation that represents the weight of train B. Train B is 100 tons lighter than train A, and the equation for train b is a-100=b. We can replace a with 125, creating 125-100=b.
Solve.
125-100=b
25=b
Check answers.
a+b=150
a=125
b=25
125+25=150
150=150
The answers are equal!! So, this means train B is 25 tons, and train A is 125.
Hope this helps!
What information do you need to know in order to find the volume of a figure?
Answer:
you need to have the surface area of the object and height in order to multiply and get the volume
Step-by-step explanation:
PLEASE HELP!
Find the slope of a line with these two points: (3, 4) and (-1, 2)
A. -1/2
B. -1/3
C. 1/2
D. 3/4
Answer:
its D
Step-by-step explanation:
7^2+3(4^2+3+2) what does this mean please help and fast!!!!
Answer:
112
Step-by-step explanation:
The arrow means multiplying but really you need to Pemdas
Answer:
112
Step-by-step explanation:
Using PEMDAS
1) [tex](4^2+3+2)[/tex]
= 16 + 3 + 2
= 21
2) [tex]7^2 + 3[/tex] * 21
= 49 + 3 * 21
= 49 + 63
= 112
A cylinder has a radius of 8 inches and a height of 16 inches. Find the volume of the figure described. Use 3.14 for .
Answer:
3,215.36 cubic meters
Step-by-step explanation:
Volume of Cylinder:pi×radius squared×height
3.14×8×8×16=3,215.36
I hope this helps:)
I NEED HELP QUICK!!!!
[tex] \frac{1}{ {3}^{3} } [/tex]
I will mark Brainlyst
Answer:
A because of its larger range
Step-by-step explanation:
i need help on this question for my math homework:))) please help!
Your dad is 73.5 inches tall. You are 2.5 inches shorter than your dad. Your mom is 3.25 inches shorter than you. How tall is your mom?
Your mom is 67.75 inches tall. Please mark me brainliest!! Ty in advance!
Answer:
67.5 inches
Step-by-step explanation:
73.5 (Your dad) - 2.5 = 71 (Your height)
71 - 3.25 = 67.75 (Your mom's height)
Your mom is 67.75 inches.
how do movement skills in volleyball transfer to tennis?
Answer:
Tennis – It's not difficult to see that tennis and volleyball have their similarity; both involve hitting a ball over the net in the hope that the opponent won't be able to return it. Much like tennis, volleyball requires short and explosive movements and cat-like reflexes, rather than long runs down a pitch.
Find the area of the figure below:
A. 40cm^2
B. 78cm^2
C. 90cm^2
D. 186cm^2
HELP ME PLS ASAP PLS PLZ PLZ PLS
Answer:
78cm^2
Step-by-step explanation:
You'd want to separate the two shapes into a rectangle and triangle. So you'd have one rectangle with one side being 2 and the long side 12. (2 * 12 = 24). Then a triangle with a base of 9 and a height of 12. (9 * 12 = 108 / 2 = 54) Then you add both areas together to get 54 + 24 = 78.
Answer:
B: 78
Step-by-step explanation:
cut it in half into a rectangle and traingle
the rectangles area is 2x12=24
The area of the triangle is 9x12=108 108/2 = 54
then add the 2 areas to get B:78
Hope this helps
Mark brainliest please
A gym's membership cost $280 in 2019. Now, it is $160. Which expression equals the percent of change?
Answer:
1/2%
Step-by-step explanation:
Is -2(3-4d+c) equivalent to -2/5(15-20d+5c)??
In order to know, you'll need to simplify the expressions.
-2(3-4d+c)
-6+8d-2c
Now for the next one.
-2/5(15-20d+5c)
-6+8d-2c
So yes, the 2 expressions are equivalent.
---
hope it helps
A pot contains 25 ounces of soil. You use 4 1/4 ounces of soil to plant 1 herb. Is there enough soil in the pot to plant 5 herbs?
Answer:
why is there so much soil
Step-by-step explanation:
The graph of a twice differential function is shown at right. Which of the following is true?
Answer:
(C)
Step-by-step explanation:
looking from the slope: f'(2) is negative
f(2)=0
the curve concave upward: f''(2) is positive
f'(2)<0
f(2)=0
0<f''(2)
f'(2)<0<f''(2)
The expression which is true n the graph of a twice differential function is f' (2) < 0 < f'' (2) so, option C is correct.
What is a differential function?A function that has a derivative at each point in its domain is referred to as a differentiable function of one real variable in mathematics. In other words, each interior point in the domain of a differentiable function's graph has a non-vertical tangent line.
Given:
The coordinate of the graph is shown in figure (2, 0),
As we can see from the graph, the slope: f' (2) is negative (Downwards)
Again, from the graph
f(2) = 0
Thus, the curve concave upward: f'' (2) is positive (upward)
f' (2)<0
f (2)=0
0 < f'' (2)
f' (2) < 0 < f'' (2)
Therefore, f' (2) < 0 < f'' (2) is true in the given graph.
To know more about differential functions:
https://brainly.com/question/2506901
#SPJ12
HELP PLSS- okok so i need the answer to this, please help :(
Answer:
second
Step-by-step explanation
-5/12 because -2/3 + 1/4 = -5/12
Answer:
2nd one
Step-by-step explanation:
Irene uses 9.6 pints of white paint and blue paint to paint her bedroom walls. 3 4 of this amount is white paint, and the rest is blue paint. How many pints of blue paint did she use to paint her bedroom walls? Express
Answer:
8
Step-by-step explanation:
9.6 divided by 3/4 = 0.8, so 8. Correct me if I'm wrong ya'll.
Jodie ran at an average speed of 10 km/h for 15 minutes.
How far did she run in km?
Answer:
2.5 km
Step-by-step explanation:
15 minutes is
15 minutes * 1 hour/ 60 minutes = 1/4 hour
15 minutes = 1/4 of an hour
10 km/ hour * 1/4 hour = 10/4 km = 2.5 km
Answer:
In total she ran 2.5km/h in 15 minuets.
Step-by-step explanation:
Since 15 minuets is a quarter of an hour you can divide the 10km/h by 4 to get 2.5km/h.
help please hurry !!!!!!
Answer:
Step-by-step explanation:
circumference= 29.83
2 times 3.14 times radius
area=70.83
3.14 times radius squared
3. radius
4. Diameter
radius is 4.75
diameter is 9.5
not 100% sure on finding the angle measure. looks about 40 degrees
PLEASE HELP ME FAST AND EXPLAIN!!! 70 POINTS!
Answer:
26.52
4.8 x 1.1 = 5.28
3.6 x 5.9 = 21.24
21.24 + 5.28 = 26.52
Hope this helps!
Answer:
26.5
hope it helps
please mark Brainliest
please help me and thank you
Answer:
A (2,0) and (0,-4)
Step-by-step explanation:
Find the solutions by finding where the two graphs intersect. In the image they intersect at (2,0) and (0,-4), which makes them the solution to the system.
If this helped, a brainliest would be greatly appreciated!
Which model represents the factors of 4x2 – 9?
Answer:
-1
Step-by-step explanation:
BODMAS
4x2=8
8-9=(impossible)
9-8= -1
NB:8 was smaller to 9 so we switched but the answer becomes nehative
Which could be the dimensions of a rectangular prism whose surface area is less than 160 square feet? Select two
options.
8 feet by 4 feet by 3 feet
7 feet by 6 feet by 4 feet
03 feet by 7 feet by 8 feet
03 feet by 6 feet by 7 feet
03 feet by 5 feet by 7 feet
Answer:
8 feet by 4 feet by 3 feet
3 feet by 5 feet by 7 feet
Step-by-step explanation:
8 feet by 4 feet by 3 feet
A = 2(wl + hl + hw)
A = 2 · (4 · 8 + 3 · 8 + 3 · 4)
A = 136
3 feet by 5 feet by 7 feet
A = 2(wl + hl + hw)
A = 2 · (5 · 3 + 7 · 3 + 7 · 5)
A = 142
76% as a fraction in simplest form.
Answer:
76/100 = 19/25
can someone help me?
Answer:
first we will collect like term
2x-x+3x+4y+7y
4x+11y
there fore the answer is 4x+11y
name of this shape
thanks
Answer:
Pyramid
Step-by-step explanation:
It is a pyramid because the base is a square and the sides are triangles.
I need help with these answers?
Q 7 = 6
Q 8= -x + 2
Q 9= 6m + 2
Q 13= 43f × 56
Q 15= 18x
Kelly used 20 colored tiles to make a design in art class.
5/20 of her tiles were blue. What is an equivalent fraction
for the blue tiles?
Answer:
1 /4, 2/8, or 4/16, 10/40 (all are correct!~).
Step-by-step explanation:
5/20 is eual to 25%
1/4 is equal to 25%
2/8 is equal to 25%
4/16 is equal to 25%
10/40 is equal to 25%
All of the fractions listed above are correct!
Hope this helps!!~~ <3
Answer:
10/40
Step-by-step explanation: 5/20 is equal to 10/40
This i questions hellllllllppppppppppppppppppppppppppp
Answer:
I dont understand what you mean by this I questions, but that is the Order of Operations. You use "PEMDAS" to memorize all 4 Order of Operations..
Step-by-step explanation:
please please help!!!!!!
Answer:
5/2
Step-by-step explanation:
duh
Answer:
the answer is 5/2 witch is equal to 2.5
Step-by-step explanation:
you have to divide the total amount of cookies by the total amount of people so 5 divided by 2 a.k.a 5/2 so that is your answer
your welcome
can i please have brainliest
Which shows how to calculate the area of the
playground?
Answer:
Length (X) width
Step-by-step explanation: