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Kamila [148]
3 years ago
11

Five swimmers entered a competition. Four of the swimmers have had their turns. Their scores are 10.8s, 10.75s, 10.79s and 10.81

s. What score must the last swimmer get in order to win the competition?
Mathematics
1 answer:
Shalnov [3]3 years ago
6 0

Answer:

10.74s or faster (lower)

Step-by-step explanation:

The lowest time out of all of them is 10.75, so to all the 5th swimmer needs to do to win is to undercut the swimmer who got 10.75s by a 100th of a second. i.e 10.74s or faster (lower) would win.

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For each ordered pair, determine when weather it’s a solution to 7x -6y=19
kumpel [21]
<h3>Answer:</h3>

Options A and B

<h3>Solution:</h3>
  • In order to determine whether or not an ordered pair is a solution to an equation, plug in the values of x and y:
  • 7x-6y=19
  • 7(7)-6(5)=19
  • 49-30=19
  • 19=19
  • We have a true statement. Therefore, the ordered pair is a solution to the equation 7x-6y=19.
  • Let's try the other ordered pairs.
  • 7(1)-6(-2)=19
  • 7+12=19
  • 19=19
  • Here's another true statement.
  • Let's check the remaining two options:
  • 7(-5)-6(3)=19
  • -35-18=19
  • -53≠19
  • Here we have a false statement.
  • 7(-4)-6(0)=19
  • -28-6=19
  • -34≠19
  • Therefore, the ordered pairs that make this equation true are (7,5) and (1,-2)

Hope it helps.

Do comment if you have any query.

7 0
3 years ago
How many inches of lumber are remaining?<br>​
belka [17]

Answer:

I can't really answer this question because there is no picture of actual question but 1 foot = 12 inches so for instance we could do 6 inches + 3 inches = 9 inches.      

Step-by-step explanation: How we would solve this problem is simple.

6 + 3 = 9  if you have to turn this into a fraction it would be 9/12 = (3/4).

7 0
3 years ago
What is the independent variable in the equation y=-5x+2?
Pepsi [2]

Answer: <em>x</em>

Step-by-step explanation:

    For this equation, the variable <em>y</em> is dependent on the value of<em> x</em>. The value of <em>y</em> changes depending on the value of<em> x</em>. This means that <em>x</em> is the independent variable for this equation.

3 0
2 years ago
6) It takes a biker 1/3 hour to ride 8/3 miles. What is
Alecsey [184]
I think the answer is B
7 0
3 years ago
Trish is solving for the zeros of the quadratic function f(x) = 2x2 – 3x + 3. x = StartFraction negative b plus or minus StartRo
viva [34]

Answer:

No, the function has no real number zeros.

Step-by-step explanation:

I just did that question.

6 0
3 years ago
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