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REY [17]
3 years ago
6

There are 35 competitors in a marathon. 60 percent of these finished the race in under four hours. How many competitors finished

the race in under four hours?
Mathematics
1 answer:
Shtirlitz [24]3 years ago
4 0
21 competitors finished in under four hours <span />
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What is the equation of the line that passes through the point (8,6)(8,6) and has a slope of 3 over 2 slash 3/2?
kow [346]

Answer:

it will be equal 0

Step-by-step explanation:

8 0
3 years ago
PLEASE HELP!! (Question in picture)<br> For BRAINLIEST and more !!
san4es73 [151]

Like terms are terms that have the same variable no matter the coefficient value such as a negative or positive coefficient (number right to left of the variable aka the letter representing an unknown amount of value).

A. 8n : - 4n becuase the have the same variable (N)

B. - 2d: D because they have the same variable and even if d has no coefficient, it still has value, variables with no coefficient always equal 1 no matter the circumstances

C. - b: 17b and -3b2 because they both have the same variable eliminating the coefficients being two different types of numbers (positive and negative). The expressions have to have the same variable.

D: 4y², -3y2,4y, and 4 to the second power. This is because they all have the same variable.

E. 6x2y: 3xy because the variable are specifially xy and they must be in order to be like terms.

abc: all because they have all the letters but are just in different orders of variables. (thats all)

8 0
2 years ago
A number cube was rolled as part of an experiment. The results are displayed in the table below.
densk [106]
<span> <span> </span><span><span> Number    Frequency    <span> Probability </span>
</span> <span> 1                      4 <span>                 0.13
</span> </span> <span> 2                      6 <span>                 0.20
</span> </span> <span> 3                      5 <span>                 0.17
</span> </span> <span> 4                      7 <span>                 0.23
</span> </span> <span> 5                      3 <span>                 0.10
</span> </span> <span> 6                      5 <span>                 0.17
</span></span><span>total                30<span>                 1.00

</span></span></span></span><span>The best explanation of how to find the experimental probability of rolling a 3 is: 
To find the experimental probability of rolling a three, write a ratio of the number of times three occurs to the total number of trials. Simplify if necessary.

5/30 = 1/6 or 0.166 or 16.6% or 17%.</span>
7 0
2 years ago
Read 2 more answers
The graph of the function f(x) is shown.
Elza [17]

Answer:

x = 2

x = -1.5

Step-by-step explanation:

The graph is of function f(x) = x²

Therefore, to find where the function intersects with y = 0.5x + 3,

equal the functions and solve for x:

⇒ x² = 0.5x + 3

⇒ x² - 0.5x - 3 = 0

Multiply both sides by 2:

⇒ 2x² - x - 6 = 0

Factor:

⇒ 2x² - 4x + 3x - 6 = 0

⇒ 2x(x - 2) + 3(x - 2) = 0

⇒ (x - 2)(2x + 3) = 0

Therefore:

(x - 2) = 0  ⇒  x = 2

(2x + 3) = 0  ⇒  x = -1.5

8 0
2 years ago
Ron deposits $2,000 into an account that receives 3.1% interest compounded continuously. How much money is in the account after
Alla [95]

In general, the continuous compounding interest formula is

\begin{gathered} P(t)=Pe^{rt} \\ P\rightarrow\text{ initial amount} \\ t\rightarrow\text{ time} \\ r\rightarrow\text{ interest rate} \end{gathered}

Therefore, in our case,

P(t)=2000e^{0.031t}

Set t=9 as shown below

\Rightarrow P(9)=2000e^{0.279}\approx2643.615...<h2>The exact answer is 2000e^(0.279)</h2>

8 0
9 months ago
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