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vitfil [10]
3 years ago
6

Try this trick out on a friend! Tell your friend to place a dime in one hand and a penny in the other hand. Explain that you can

determine which hand is holding the penny. Here’s how to do it: a. Ask the friend to multiply the value of the coin in his or her RIGHT hand by 4, 6, or 8 and then to multiply the value of the coin in his or her LEFT hand by 3, 5, or 7. 2. b. Now ask the friend to add the two results together and tell you the total. c. If the total is EVEN, the penny is in the RIGHT hand. If the total is ODD, the penny is in the left hand.
Mathematics
1 answer:
Svet_ta [14]3 years ago
3 0
That is so cool, thanks for the trick idea.
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Triangle ABC is a right triangle. If AC=12 and BC=13 find AB.
stepladder [879]

Answer:

5

Step-by-step explanation:

by pythagoras theorem

(hyp)^2=(leg1)^2+(leg2)^2

the hypotenuse is the side opposite to 90 degree (BC=13)

AC=leg 1 = 12

13^2=12^2 + leg 2^2

169=144+ leg 2^2

leg2 ^2=169-144

leg2^2= 25

leg2= root 25

leg2=5

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3 years ago
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Ellie left her house and drove to the store. She stopped and went inside. From
Sliva [168]

Answer:

Ellie spent 21 minutes after she left her house until she got back home

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3 years ago
PLEASE HELP
Digiron [165]

Answer:

A

Step-by-step explanation:

Because for A, the question is "How many weeks until the bank is full?" which is looking for X. That part is checked off. It says 100x+50=710. 710 is the total in A too so that is checked off. In the equation, the piggy bank starts with 50 coins so that is checked off. Everything is in order so A is the answer. WEAR A  MASK AND STAY SAFE DURING THIS HARD TIME! ;)

7 0
3 years ago
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Evaluate 10.3v + 9.7w when v = 3 and w = 4
Mariulka [41]

Answer:

69.7

Step-by-step explanation:

10.3x3=30.9

9.7x4=38.8

30.9+38.8=69.7

5 0
3 years ago
4) –138 = 6(1 – 3x)<br> multi-step equations
tester [92]

Answer:

70/9

Step-by-step explanation:

Let's solve your equation step-by-step.

4−138=6(1−3x)

Step 1: Simplify both sides of the equation.

4−138=6(1−3x)

4+−138=(6)(1)+(6)(−3x)(Distribute)

4+−138=6+−18x

(4+−138)=−18x+6(Combine Like Terms)

−134=−18x+6

−134=−18x+6

Step 2: Flip the equation.

−18x+6=−134

Step 3: Subtract 6 from both sides.

−18x+6−6=−134−6

−18x=−140

Step 4: Divide both sides by -18.

−18x/-18=−140/-18

x=70/9

8 0
3 years ago
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