Please help with 5 questions! THANK YOU FOR ANSWERING.

***Please show all work and give explanation*** I'm in algebra 2 and we are working with matrices. So that would be the preferre

Katarina [22]

Answer:

The Washington High School won the meet by scoring 162 points

The Johnson High School came in second place by scoring 159 points, 3 points less than the winner.

Step-by-step explanation:

Arithmetics

We need to perform a number of basic arithmetics operations and derive conclusions out of the results.

We know that

10 points are awarded for each first-place finish
8 points are awarded for each second-place finish
7 points are awarded for each third-place finish

* Washington High School had 10 first-place finishes, 6 second-place finishes, and 2 third-place finishes.

Total points: 10*10+6*8+2*7=162 total points

* Johnson High School had 8 first-place finishes, 9 second-place finishes, and 1 third-place finish.

Total points: 8*10+9*8+1*7=159 total points

* Roosevelt High School had 4 first-place finishes, 5 second-place finishes, and 4 third-place finishes.

Total points: 4*10+5*8+4*7=108 total points

* Lewis High School had 3 first-place finishes, 3 second-place finishes, and 6 third-place finishes.

Total points: 3*10+3*8+6*7=96 total points

The Washington High School won the meet by scoring 162 points

The Johnson High School came in second place by scoring 159 points, 3 points less than the winner.

8 0

3 years ago

If a + b = c and b = 5, then a + 5 = c is known as the ________ property. Question 18 options: A) substitution B) symmetric C) t

Anna007 [38]

Answer:

Substitution

Step-by-step explanation:

We know that B equals five, and that a + b = c. This means that if we substitute 5 for b, the equation will still be true. Hope this helps!

8 0

3 years ago

Read 2 more answers

Write an equivalent expression for -6(a+8)

stepan [7]

-6a-48 that would be it because you are only distributing the -6

8 0

3 years ago

Joe has 37 coins consisting of nickels, dimes, and quarters. There are four more nickels than dimes and two more quarters than n

astraxan [27]

Answer:

15

Step-by-step explanation:

Let n, d, q represent the numbers of nickels, dimes, and quarters. The problem statement tells us ...

n +d +q = 37

n = d +4

q = n +2

___

Rearranging the second equation gives ...

d = n -4

Substituting that into the first, we get ...

n + (n -4) +q = 37

2n +q = 41 . . . . . . . add 4 and simplify

Rearranging the third original equation gives ...

n = q -2

Substituting into the equation we just made, we get ...

2(q -2) +q = 41

3q = 45 . . . . . . . . add 4 and simplify

q = 15 . . . . . . . . . divide by 3

Joe has 15 quarters.

_____

Check

The number of nickels is 2 fewer, so is 13. The number of dimes is 4 fewer than that, so is 9. The total number of coins is 15 + 13 + 9 = 37, as required.

5 0

3 years ago

Im really stuck on this............

Len [333]

Answer:

H is the Answer

Step-by-step explanation:

Apply distance formula.

$(x {}^{2 } - {x}^{1} ) {}^{2} + ( {y}^{2} - {y}^{1} ) {}^{2} = d {}^{2}$

where d is the distance.

$( - 5 - 7) {}^{2} + (0 - 5) {}^{2} =$

$- 12 {}^{2} + - 5 {}^{2} = {d}^{2}$

$\sqrt{169} = {d}^{2}$

$d = 13$

3 0

3 years ago

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