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borishaifa [10]
4 years ago
11

At the same time, two trains start toward each other on parallel tracks, 450 miles apart. Train A’s constant rate is 55 mph. Tra

in B’s is 65 mph. How long before they pass each other?
Mathematics
1 answer:
r-ruslan [8.4K]4 years ago
3 0

55 + 65 = 120

450/120 = 3.75 hrs

= 3h 45m


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john bought 53 cartons of eggs,and each had 24 eggs.250 of the eggs were bad.how many good eggs did she get?​
Mnenie [13.5K]

Answer:

1022

Step-by-step explanation:

total of eggs

= 53 × 24

= 1272

the good eggs

= 1272 - 250

= 1022

6 0
3 years ago
Percy works two part-time jobs to help pay for college classes. On Monday, he works 3 hours at the library and 2 hours at the co
tekilochka [14]
We need to solve this system 
<span>(3x + 2y = 36.50)    *5
(2x + 5y = 50.00)    *(-2)

  15x+10y= 182.5
   -4x  -10y= -100

11x=82.5
x= 7.50  at the library


</span>2x + 5y = 50.00   
<span>2*7.5+5y=50
15+5y=50
5y=35
y=7 at coffee cart

So,
correct answer is 
</span><span>C.Percy earns a greater hourly wage of $7.50 at the library.</span><span>

</span>
5 0
3 years ago
What is the solution to the equation x + 7.5 = 28.5? 3.8 21 36 213.75
BlackZzzverrR [31]
X+7.5=28.5
X=28.5-7.5
X=21
8 0
3 years ago
Read 2 more answers
PLEASE HELP!!!! <br> Find m
astra-53 [7]

Answer:

I couldn't find it its confusing

3 0
4 years ago
12 6 12 24
diamong [38]

Answer:

B

Step-by-step explanation:

  1. divide the given polygon into two (a square and a trapezium
  2. area of trapezium=1/2(a+b)×b 1/2(12+6)×12 ans 108square unit
  3. area of a square=s×s 12×12 =144square unit
  4. add 108+144=252square unit

3 0
4 years ago
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