All students in Ridgewood Junior High School either get their lunch in the school cafeteria or brought it from home on Tuesday. 20% of students brought their lunch. 49 students brought their lunch. How many students in total are in Ridgewood Junior High School?

Answers

Answer 1
Answer:

Answer:

245

Step-by-step explanation:

49 = 20%

2.45 = 1%

245 = 100%


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Number line from negative 10 to 10 , tic marks at every integer , labels at negative 10 , negative 5 , 0 , 5 , 10 , closed red circle on negative 1 , red shading to the right of the red circle. A. y + 5 ≤ 4 B. y + 5 < 4 C. y + 5 ≥ 4 D. y + 5 > 4

Which expression is equal to 2√54 −4√24? ? ​A. √6 ​ ​B. −√ 6 C. −√116 D. -26√

Answers

Answer:

D : - 2√(6)

Step-by-step explanation:

using the rule of radicals

√(ab) = √(a) × √(b)

given

2√(54) - 4√(24)

simplifying the radicals

√(54)

= √(9(6))

= √(9) × √(6)

= 3√(6)

√(24)

= √(4(6))

= √(4) × √(6)

= 2√(6)

Then

2√(54) - 4√(24)

= 2(3√(6) ) - 4(2√(6) )

= 6√(6) - 8√(6)

= - 2√(6)

The numbers on a certain combination lock start with 0 and go through 10. If a combination consists of 3 numbers, how many different lock combinations are possible?

Answers

There would be 165 combinations

the answer isnt that^ its not an option.

Can you help me with this question? please and thank you!

Answers

-- As time goes on, the population gets bigger.
   That's increasing.

-- If the same amount was ADDED to the population every 5 weeks,
that would be linear.  But that's not what's happening here.

Every 5 weeks, the population is MULTIPLIED by the same amount (10).
That's increasing exponentially.

On a graph, it would be a curve, that not only gets higher as time
goes on, but also gets steeper (rising faster, increasing slope).

B increasing linear 
:)



You had 23 dollars to spend on 4 avocados. They were very green. After buying them you had 11 dollars. How much did each avocado cost?

Answers

Answer:

$3

Step-by-step explanation:

Because you subtract $23-$11 to get the total you spent on avocados then you divide 12/4 because you bought 4 avocados

Answer:

3 dollars for each avocado.

Step-by-step explanation:

Since you had 23 dollars in the beginning and 11 dollars in the end, subtract to find out how much was used for the avacados.

23-11=12

Next, since you bought 4 avocados, you divide 12 by 4 to find out how much each cost.

12/4=3

Each avocado cost 3 dollars.

You can check by multiplying 3 by 4.

3x4=12

Then, add the 12 dollars spent to the 11 dollars left.

12+11=23 dollars

Which point lies on a circle that is centered at A(3, 3) and passes through B(6, 5)?C(1, 6)
D(6, 0)
E(0, 3)
F(3, -1)
G(3, 6)

Answers

AB = \sqrt{(3-6)^(2) + (3-5)^(2)} = √(13)

equation of the circle :

 (x - 3)² + (y - 3)² = 13

(1-3)² + (6-3)² = 13 ⇒ C ∈ circle
(6-3)² + (0-3)² = 18 ≠ 13 ⇒ D ∉ circle
(0-3)² + (3-3)² = 9 ≠ 13  ⇒ E ∉ circle
(3-3)² + (-1-3)² = 16 ≠ 13 ⇒ F ∉ circle
(3-3)² + (6-3)² = 9 ≠ 13 ⇒ G ∉ circle

In Missy's sport-card collection, 3/4 of the cards are baseball cards. In frank's collection, 8/12 are baseball cards. Frank says they have the same fraction of baseball cards. Is he correct?

Answers

to solve this, you need to simplify 8/12
in order to simplify a fraction, you divide both the top and bottom by the same number.
 8 and 12 are both divisible by 4, so you get
2/3

2/3 and 3/4 are not the same fraction, so no. Frank is not correct.
No he is incorrect because Missy's collection has more.