3 years ago

Round 969.991 to the nearest whole number

Mathematics

1 answer:

Serga [27]3 years ago

3 0

970 is the answer. :)

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What is 83 + 119 + 17 =

Fittoniya [83]

Answer:

219

Step-by-step explanation:

83 + 119 = 202

202 + 17 = 219

3 0

2 years ago

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What will be the length of the battery?

kobusy [5.1K]

Answer:

:) 17

Step-by-step explanation:

68 = 4 x L

68 div by 4 = 17

the length is 17

6 0

2 years ago

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Suppose an=3an-1 -5an-2 -4an-3. and a4= -7, a5=-36, a6=-85 , find a1 , a2, a3

maria [59]

Answer:

$a_1=4\\\\a_2=0\\\\a_3=3$

Explanation:

The equation is:

$a_n=3a_{n-1}-5a_{n-2}-4a_{n-3}$

and

$a_4=-7, a_5=-36, a_6=-85$

1. Subsittute n = 6 into the equation:

$a_6=3a_{5}-5a_{4}-4a_{3}$

Now subsititute the known values:

$-85=3(-36)-5(-7)-4a_{3}$

You can solve for $a_3$

$-85=-108+35-4a_{3}\\\\4a_3=12\\\\a_3=12/4\\\\a_3=3$

2. Substitute n = 5 into the equation:

$a_5=3a_{4}-5a_{3}-4a_{2}$

Substitute the known values and solve for $a_2$

$-36=3(-7)-5(3)-4a_{2}\\\\4a_2=-21-15+36=0\\\\a_2=0$

3. Substitute n = 4 into the equation, subsitute the known values and solve for $a_1$

$a_4=3a_{3}-5a_{2}-4a_{1}$

$-7=3(3)-5(0)-4a_{1}\\\\4a_1=9+7=16\\\\a_1=4$

7 0

2 years ago

twice the difference between a number and 10 is equal to 6 times the number plus 14. what is the number?

laiz [17]

Let the number be n. Then 2(n-10) = 6n + 14.

Multiplying out the left side, 2n - 20 = 6n + 14. Thus, -34=4n, and n = -17/2.

4 0

3 years ago

Alice purchased 4 1⁄2 kilograms of olive oil for $27. What is the price per kilogram?

vitfil [10]

Hi!

We will solve this using ratios, like this:

4 1/2 = 4,5 kg of olive oil for 27 $

1 kg of olive oil for x $

_____________________________

x = (27*1)/4,5

x = 27/4,5

x = 6 $ per kilogram

Hope this helps!

8 0

3 years ago