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3 years ago

Hi guys, how to calculate this in system? {2a+3b=14 {5b+4a=20 Thanks,

Mathematics

1 answer:

Tom [10]3 years ago

5 0

Step-by-step explanation:

there it is

and if u need more help tell me

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A recipe calls for chocolate chip in a ratio of 1 cup of white chocolate chips to 2 cups of white chocolate chips how many milk

HACTEHA [7]

You have 1:2 and then you have _:6 so you would divide 6by 2 and get 3. 3:6

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4 years ago

A geologist in South America discovers a bird skeleton that contains 80% of its original amount of C-14. N0= initial amont of C-

kap26 [50]

A geologist in South America discovers a bird skeleton that contains 80% of its original amount of C-14

We use formula $N = N_oe^{-kt}$

N0= initial amont of C-14 (at time t=0)

N= amount of C-14 at time t

t= time, in years

k= 0.0001

N is 80% of N0 that is $N= 0.80N_o$

$N = N_oe^{-kt}$

$0.80N_o = N_oe^{-kt}$

Divide both sides by N_o

$0.8=e^{-0.0001 t}$

Take ln on both sides

$ln(0.8)=lne^{-0.0001 t}$

ln(0.8) = -0.0001t ln(e)

ln(0.8) = -0.0001t

Divide both sides by -0.001

t = 2231.435513

The age of the bird skeleton is 2231 years old

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3 years ago

Let a and b be numbers. Use the distributive law to rewrite the expression in a simpler form. a(a+b) =

Kamila [148]

Answer:

Distributive law, in mathematics, the law relating the operations of multiplication and addition, stated symbolically, a(b + c) = ab + ac; that is, the monomial factor a is distributed, or separately applied, to each term of the binomial factor b + c, resulting in the product ab + ac. From this law it is easy to show that the result of first adding several numbers and then multiplying the sum by some number is the same as first multiplying each separately by the number and then adding the products.

Step-by-step explanation:

a(a+b)

in this question first a will multiply by a+b.

like this;

a(a+b)

= a(a)+ab

= a^2+ab

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3 years ago

5. A family pass to the amusement park costs $54. Using the Distributive Property, write an ex3. Fiona uses 256 fluid ounces of

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One ounce would be 85.3333333

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3 years ago

Which are dependent events?

mezya [45]

Answer:

D. taking two marbles from a box without replacing the first marble are dependent events

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hope it helps

have a great day!!

6 0

3 years ago

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