MATHEMATICS MIDDLE SCHOOL

PLEASE ANSWER THIS QUESTION AS SOON AS POSSIBLE! 20 PTSIf a player gets a 3 for their first card, what must the second card be in order for the player to keep the cards? List all possible cards from the deck that would get a POSITIVE sum. Explain your reasoning or show your work.

Answers

Answer 1

Answer:

-2,-1,1,2,3,4,5

All of these numbers +3 = A positive number

Ratio- 7:10

Fraction- 7/10

If you were to add -4 + 3, -5 +3, or -3+ 3 they would all equal a negative # or Zero.

By the way Zero is not positive nor negative

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PLEASE CHECK MY ANSWERS (PART 2)

Answers

3 is incorrect, should be 28.9

16^2 + 18^2 = EG^2
256 + 324
580 = EG^2
EG ≈ 24.08

16^2 + 24.08^2 = AG^2
256 + 580 = AG^2
836 = AG^2
AG ≈ 28.9

5 is incorrect:

The base is 8.
Draw an altitude the base.
Since the triangle is isoceles, it divides the base in half.
Half of that base is 4.
Two right triangles have been formed with one leg 4 and hypotenuse 8.
4^2 + b^2 = 8^2
16 + b^2 = 64
b^2 = 48
b ≈ 6.93

The height of the triangle is 6.93, the base is 8.
A = bh/2 = 8*6.93/2 ≈ 27.7 ≈ 28

A box is filled with pennies, nickels, and dimes in a ratio of 2:3:4. If the total number of coins in the box is 1620, how many pennies are in the box

Answers

We could say that the number of pennies is 2x, nickels are 3x, and dimes are 4x. Adding all of them together, we get 2x+3x+4x=9x. We also know that 9x=1620 because the total amount of coins is 1620. Dividing by 9 on both sides we get x=180.
Pennies equal 2x= 2*180=360

What’s the value of x?