1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
inn [45]
2 years ago
8

the question is in the picture, i need the weight of train a and b i’ll give the right answer brainlist :))

Mathematics
2 answers:
frez [133]2 years ago
6 0

Answer:

a 106

b 92

Step-by-step explanation:

Hope this helps!

Andrej [43]2 years ago
5 0

Answer:

92=B\\A=106

Step-by-step explanation:

So i did it like this

A= Train A B= Train B

A+B=198\\A-B=14\\A=198-B\\A=14+B\\(14+B)+B=198

14+2B=198

184=2B\\92=B\\A=106

CHECK:

106+92=198\\198=198

106-92=14\\14=14

You might be interested in
How would i solve this?
Flauer [41]

Answer: C

Step-by-step explanation:

The enequality includes x values equal to or greater than -2 and less than(but not equal to) 1.

so the possible integers would be -2 -1 0.

4 0
3 years ago
The commuting time for a student to travel from home to a college campus is normally distributed with a mean of 30 minutes and a
Rainbow [258]

Answer:

0.1587

Step-by-step explanation:

Let X be the commuting time for the student. We know that X\sim N(30, (5)^2). Then, the normal probability density function for the random variable X is given by

f(x) = \frac{1}{\sqrt{2\pi(5)^{2}}}\exp[-\frac{(x-\mu)^{2}}{2(5)^{2}}]. We are seeking the probability P(X>35) because the student leaves home at 8:25 A.M., we want to know the probability that the student will arrive at the college campus later than 9 A.M. and between 8:25 A.M. and 9 A.M. there are 35 minutes of difference. So,

 

P(X>35) = \int\limits_{35}^{\infty}f(x)dx = 0.1587

To find this probability you can use either a table from a book or a programming language. We have used the R statistical programming language an the instruction pnorm(35, mean = 30, sd = 5, lower.tail = F)

6 0
3 years ago
Help pls I will give 20 points
dalvyx [7]

Answer:

neon-0

oxide- -2

copper-2

tin-0

4 0
3 years ago
Find the area of the sector, show work please!! 25 points
olasank [31]

OPTION A is the correct answer.

6 0
3 years ago
(_____)^2= (cscx-1)(cscx+1)
Lady bird [3.3K]
(csc(x)-1)(csc(x)+1)=csc^2(x)-1=cot^2(x)

We know that csc^2(x)-1=cot^2(x) because of the Pythagorean trig identity 1+cot^2(x)=csc^2(x).
4 0
3 years ago
Other questions:
  • Which of the following have two congruent parallel bases?
    5·1 answer
  • A physics class has 40 students. Of​ these, 16 students are physics majors and 14 students are female. Of the physics​ majors, f
    15·1 answer
  • Use one transformation to solve n-4.6=2.98
    11·1 answer
  • I need the answer for number 20
    11·1 answer
  • How can you slice a cube to create a triangular plane section? Show and describe the plane section formed by the slice.
    8·2 answers
  • Mrs. Fekin bought herself a new water jug. The jug of water holds 64 ounces. If she drinks 4 ounces per hour, after how many hou
    12·1 answer
  • 2. Dora and Ron share £50 in the ratio 3:7.
    7·1 answer
  • A jar contains 7 red marbles, 9 blue marbles and 3 green marbles. Christopher wins if he picks a blue marble and Janet wins if s
    8·1 answer
  • I need help really bad somebody help me
    13·2 answers
  • I need help with a assignment on McGrawhill pls help its due soon
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!