MATHEMATICS HIGH SCHOOL

Shureka Washburn has score of 72,67,82, and 79 on her alebra test. Use an inequality to find the scores she must make on the final exam to pass the course with an average of 77 or higher, given that the final exam counts as two test.

Answers

Answer 1

Answer:

Answer:

$x \geq 81$

Step-by-step explanation:

Shureka Washburn has score of 72,67,82, and 79 on her algebra test.

Let x be the score on the final exam.

$(72+67+82+79+x+x)/(6) \geq 77$

=> $(300+2x)/(6) \geq 77$

=> $300+2x \geq(77)6$

=> $300+2x \geq 462$

=> $2x \geq 462-300$

=> $2x \geq 162$

=> $x \geq 81$

Answer 2

Answer: 72+67+82+79=300
300/4=75
300+81+81=462
462/6=77

ANSWER X MUST BE GREATER THAN OR EQUAL TO 81

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What is 809 times 17 using standard algorithm? show your work

Answers

LONG MULTIPLICATION METHOD:

Multiply 7 by 9 to get 63. Place the ones digit (3) in the result line and carry the tens digit (6). There is one result line for each digit in the 17.

Multiply 7 by 0 and add the carried 6 to get 6. Place the result in the next column in the result line. There is one result linefor each digit in 17. There is one result line for each digit in the 17.

Multiply 7 by 8 to get 56. Place the result in the next column in the result line. There is one result line for each digit in 17.There is one result line for each digit in the 17.

Multiply 1 by 9 to get 9. Place the result in the next column in the result line. There is one result line for each digit in 17.There is one result line for each digit in the 17.

Multiply 1 by 0 to get 0. Place the result in the next column in the result line. There is one result line for each digit in 17.There is one result line for each digit in the 17.

Multiply 1 by 8 to get 8. Place the result in the next column in the result line. There is one result line for each digit in 17.There is one result line for each digit in the 17.

Add the numbers in each column. In this case, add 3+0 to
get 3, then place the 3 in the result line.

Add the numbers in each column. In this case, add 6+9 to get 15, then place the 5 in the result line and carry the 1.

Add the numbers in each column. In this case, add 6+0+1 to get 7, then place the 7 in the result line.

Add the numbers in each column. In this case, add 5+8 to get 13.

The result of 809⋅17 is 13753.

my answer is : 800 x 10 = 8,000 , 9 x 10 = 90 & finally , 800 x 7 = 5600 ,9 x 7 = 63 . So , to conclude ; 13,600 + 153 = 13,753

The diagram shows 2 wheels of radii 15 cm and 24 cm. Their centres, H and K, are 41 cm apart. ( Refer to the attatchment given )Help me find the lengthof the belt by providing workings. Thanks!

Answers

Hello,

$1) \ncos(\widehat{HKR})= (9)/(41) ==\ \textgreater \ \widehat{HKR}=1.34948188...rad\n\nsin(\widehat{KHR})= (9)/(41) ==\ \textgreater \ \widehat{KHR}=0,22131444...rad\n\n$

$\widehat{QKA}=\pi-1,34948188...=1,792110769...rad\n\n$\overset{\frown}{QA}$=24*1,792110769...=43,010658459...\n\n\widehat{KHB}= (\pi)/(2)-0,22131444...=1,3494888...\n\n$\overset{\frown}{PB}$=15*1,3494888...=20,2422282\n\n$

2)
$|HR|=√(9^2+41^2) =41,976183723\n\n$

length=2*(43,010658459+20,2422282+41,976183723)=210,458140764

What is the sum of 667 and 23?
a. 644
b. 690
c. 15,341
d. 29

Answers

the answer is B. 690

the answer is b. 690

What is the formula for finding a1 in the geometric series sn=48455, r=3.2, n=3?

Answers

The formula for finding the sum in the geometric series: $S_(n)=a_(1) * ( r^(n) -1)/(r-1)$ For finding a1: $a_(1) = ( S_(3)*(3.2-1) )/( 3.2^(3)-1 ) = (48455*2.2)/(32.768-1)= (106601)/(31.768)=3355.6094$

The diagram shows two parallel lines a andb cut by transversal lines.
Part A
What is an equation that can be used to
solve for x?
Part B
What is the value of x?

Answers

Answer:

y = 180 - (36 + 65)

x = 69

Step-by-step explanation:

Final answer:

To solve for x in the given diagram of parallel lines cut by a transversal, use the concept of corresponding angles. The value of x is 60°.

Explanation:

Part A: To solve for x, we can use the corresponding angles formed by the transversal and the parallel lines. One of the corresponding angles is x + 60°. Since the other corresponding angle is 120°, we can set up the equation x + 60° = 120°. Solving for x, we find that x = 60°.

Part B: The value of x is 60°.

Learn more about parallel lines here:

brainly.com/question/32035102

#SPJ2

Ten times the sum of half a number and 6 is 8

Answers

10 times the sum of 1/2 of a number and 6 means 10(x/2+6)
is 8
=8

10((x/2)+6)=8
divide both sides by 10
(x/2)+6=0.8
minus 6 from both sides
x/2=5.4
times both sides by 2
x=10.8

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