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3 years ago

231 students went on a field trip 9 buses were filled and 15 students traveled in cars how many students were in each bus

Mathematics

2 answers:

mote1985 [20]3 years ago

8 0

$231 - 15 = 216 \\ 216 = 9x \\ x = 24$

ira [324]3 years ago

8 0

Answer: 216

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Show work for 125 divided by 7.75

Mazyrski [523]

7.75 ➗ 125 = 0.062

Simplify ➡ 31 / 4

31 over 4 ➗ 125

Then, divide ➡31 over 1 by 125

and it should leave you with the answer 0.062

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3 years ago

What's the explicit rule for the sequence 3, -6, 12, -24, 48, ...?

777dan777 [17]

Answer:

$\sf \dfrac{-3}{2}(-2)^n$

Step-by-step explanation:

Explicit formulas are used to represent all the terms of the geometric sequence with a single formula.

$\sf \boxed{\bf t_n = ar^{n-1}}$

a is the first term.

r is the common ratio.

r = second term ÷ first term.

3 , - 6 , 12, - 24, 48 ,........

a = 3

r = -6 ÷ 3 = -2

$\sf t_n = 3*(-2)^{(n-1)}\\\\$

$\sf = 3*(-2)^{n}*(-2)^{-1}\\\\ =3*(-2)^n*\dfrac{-1}{2}\\\\= \dfrac{-3}{2}(-2)^n$

Check:

$\sf t_1 =\dfrac{-3}{2}*(-2)^1=\dfrac{-3}{2}*(-2) = 3\\\\\\t-2 = \dfrac{-3}{2}*(-2)^2 = \dfrac{-3}{2}*4=-6\\\\\\t_3=\dfrac{-3}{2}*(-2)^3=\dfrac{-3}{2}*(-8)=12$

4 0

2 years ago

Read 2 more answers

How do I find the value of -72÷(-9)

galben [10]

Just divide regular and the answer will be positive. the answer will be 8

remember:
two positives = positive
two negatives = positive
one positive, one negative = negative

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3 years ago

Greatest common factor of 18 and 44

Zanzabum

The greatest common factor is 2

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3 years ago

Felicia is solving the expression - 5(3x + 2) + 10x. Gregory is solving the expression -12 - 4x +?+?x.

IrinaK [193]

Answer:

-5x-10 is the expression. the missing values would be 2 and -x i believe

7 0

3 years ago