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4 years ago

Breaks down the problem and give the answer

Mathematics

2 answers:

Natalka [10]4 years ago

5 0

13s=26
s=2
I think those are variables so that would be it.

insens350 [35]4 years ago

3 0

26-4s=9s. Start by taking out like terms, or separating the variable. Add 4s to both sides, cancel it out on the left. You have 13s on the right side. Divide both sides by 13, cross out 13 from the right side, and s equals 2.

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Problem #2: A piece of wood that is 15 feet long is out in half. Each half is then cut into twelve

garri49 [273]

Answer: Each peice of wood is equal to 0.625

Step-by-step explanation:

15/2 = 7.5

7.5/12 = 0.625

4 0

3 years ago

If you drive your car for 4.5 hours at an average speed at 70 miles per hour how far did you go ?

vodka [1.7K]

I think it would be 315. because 4.5*70..but im not sure

3 0

3 years ago

A biologist is studying the elk population in a county park. She starts with only 2 elk and observes that the number of elk trip

DochEvi [55]

Answer:

The expression that represents the population of elk is: $\text{elk}(t) = 2*3^t$ . It'll take 6 years for the population to reach 1,458 individuals.

Step-by-step explanation:

Since the number of elks triples every year and starts at $\text{elk}(0) = 2$ , then after the first year the population will be:

$\text{elk}(1) = \text{elk}(0)*3 = 2*3$

While on the second year, it'll be:

$\text{elk}(2) = \text{elk}(1)*3 = 2*3*3 = 2*3^2$

On the third year:

$\text{elk}(3) = \text{elk}(2)*3 = 2*3^2*3 = 2*3^3$

And so on, therefore the expression that describes the population of elk as the years passes is:

$\text{elk}(t) = 2*3^t$

If we want to know the number of years until the population reach 1,458 elk, we need to apply this value to the left side of the equation and solve for t.

$1458 = 2*3^t\\3^t = \frac{1458}{2}\\3^t = 729\\ln(3^t) = ln(729)\\t*ln(3) = ln(729)\\t = \frac{ln(729)}{ln(3)} = 6$

The population will reach 1,458 elk in 6 years.

8 0

3 years ago

Jen worked eight weeks as a lifeguard. She was able to save $336. She owns the same amount each week. Write an equation where W=

Juli2301 [7.4K]

Answer: 1(w)=$336

Step-by-step explanation:

5 0

3 years ago

A ternary digit is either 0, 1, or 2. how many sequences of eight ternary digits containing a single 2 and a single 1 are possib

PIT_PIT [208]

Answer:

Step-by-step explanation:

If there can be only one 1 and only one 2, the remaining digits must all be 0. The digits 1 and 2 can be anywhere in the 8 digits, and can be in either order.

There are 8 possible locations in the sequence for the 1, then 7 possible locations for the 2. The total number of possibilities is 8·7 = 56.

12000000, 21000000, 10200000, 20100000, ..., 00000012, 00000021.

8 0

3 years ago