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DerKrebs [107]
4 years ago
6

2 trains leave the station at the same time heading in opposite directions. The faster train is traveling at 10 km per hour more

than the slower train. If they are a total of 425 km apart after 2.5 hours what are the speeds of the train
Mathematics
1 answer:
Greeley [361]4 years ago
8 0

2 hour is when theyll meet

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Which statement is correct?
ArbitrLikvidat [17]

Answer:

B

Step-by-step explanation:

The square root of 72 is 8.48528137424 therefore it is more than 8 and less than 9

6 0
3 years ago
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3(a - 4) ≤ 33<br> Help me solve
yaroslaw [1]

Answer:

a ≤ 15

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
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  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

Step-by-step explanation:

<u>Step 1: Define</u>

3(a - 4) ≤ 33

<u>Step 2: Solve for </u><em><u>a</u></em>

  1. Divide 3 on both sides:                    a - 4 ≤ 11
  2. Add 4 on both sides:                        a ≤ 15

Here we see that any value <em>a </em>less than or equal to 15 would work as a solution to the inequality.

3 0
3 years ago
a manufacturer has 3375 yards of material on hand. if the average dress takes 3 3/8 yards of material, how many dresses can he m
shepuryov [24]
We know that

3 3/8-------------> (3*8+3)/8-----------> 27/8 yd

if 1 dress take---------------> 27/8 yd
  X-----------------------------> 3375 yd
X=3375/(27/8)---------> x=1000 dresses

the answer is
He can make 1000 dresses
7 0
3 years ago
'Five times a number minus eight is 17.5.
11Alexandr11 [23.1K]

Answer:

5.1

Step-by-step explanation:

you need to work backwards.

so do 17.5 + 8 then divide by 5 to get 5.1

i hope this helps :)

8 0
3 years ago
1218÷6 I need help please
Morgarella [4.7K]
203 is the answer there you go
5 0
3 years ago
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