MATHEMATICS HIGH SCHOOL

Which expression is equivalent to 10 - 810−810, minus, 8?

Answers

Answer 1
Answer:

Answer:

10+(-8)

Step-by-step explanation:
Answer 2
Answer:

Final answer:

The expression 10 - 8 - 810 is equivalent to -808.

Explanation:

The expression 10 - 8 - 810 is equivalent to subtracting 8 from 10 and then subtracting 810. The order of operations states that subtraction should be done from left to right, so we first subtract 8 from 10 to get 2. Then we subtract 810 from 2 to get -808.

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Let r varies inversely as u, and r = 8 when u =5. Find r if u=55

Answers

Answer:

Step-by-step explanation:

Given that, r varies inversely with u. r=k÷u, k being the constant.

Therefore, k=8×5, ( after making k the subject of your formula).

This implies that k=40.

Now, according to the formula r=k÷u,

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you want to purchase a pair of shoes for $39.99 and a pair for $29.99, what will your total be before sales tax during the sale​

Answers

Answer:

$69.98

Step-by-step explanation:

$39.99 + $29.99 = $69.98
69.98 would be the answer

What is the length and width of a rectangle with a perimeter of 54

Answers

Width is 10 and length is 17. I hope this helps!
i believe the answer is 13.5 i could be wrong.

Max purchased a box of green tea mints. The nutrition label on the box stated that a serving of three mints contains a total of 10 calories

Answers

full box=180 calories
C(x)=number of calories
x=number of mints

therefor
full box=180=(10/3)x
180=(10/3)x
solve for x aka number of mints per box

multiply both sides by 3/10 ( since 10/3 times 3/10=30/30=1 so 1x)

540/10=x
54=x

54 mints per box

Tell how to undo each operation and explain why it works. Adding 28. Dividing by 17

Answers

Addition: Use subtraction, because the inverse of adding is subtracting. Same goes for subtracting. Add.

Multiplying: Opposite to divideing

Find the zeros of x3 +2X^2-23x-60

Answers

Hello,

P(x)=x^3+2x²-23x-60
P(-4)=(-4)^3+2*(-4)²-23*(-4)-60=0
P(-3)=(-3)^4+2*(-3)²-23*(-3)-60=0
P(5)=5^3+2*5²-23*5-60=0
Zeros are -4,-3,5
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