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3 years ago

What causes an electric charge to jump from your hand to a metal object?

Mathematics

1 answer:

meriva3 years ago

8 0

Answer:

Charges are both negative and positive as such negative charges are drawn to positive charges and the same with positive being drawn to negative

this can be explained because the human body has natural medals in that attract negative and positive charges just like metal.

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A 4-kilogram bag of birdseed costs $12.69. What is the unit price, rounded to the

igomit [66]

Answer:

$3.17

Step-by-step explanation:

Take the $12.69 and divide it by the 4 kilograms and you get 3.17. (This is rounded)

3 0

3 years ago

Simply the fraction 280/3500

lina2011 [118]

Answer:

2/25

Step-by-step explanation:

Just work it out

4 0

3 years ago

Nuts Galore sells a trail mix containing dried banana chips, roasted almonds, and chocolate chips that sells for $6.52 per pound

KengaRu [80]

Answer:

$x = 28$ ----- Banana

$y = 54$ ----- Almonds

$z = 18$ ---- Chocolate

Step-by-step explanation:

Let

$x \to$ banana

$y \to$ almonds

$z \to$ chocolate

So, we have:

$x + y + z = 100$ --- total used

$4x + 8y + 6z = 652$ -- i.e. 6.52 * 100 --- total sales from 100 pounds

$y = 3z$

Required

The number of pounds of each (i.e. x, y and z)

Substitute $y = 3z$ in $x + y + z = 100$

$x + 3z + z = 100$

$x + 4z = 100$

Make x the subject

$x = 100 - 4z$

Substitute $y = 3z$ in $4x + 8y + 6z = 652$

$4x + 8 * 3z + 6z = 652$

$4x + 24z + 6z = 652$

$4x + 30z = 652$

Substitute $x = 100 - 4z$

$4(100 - 4z) + 30z = 652$

$400 - 16z + 30z = 652$

Collect like terms

$- 16z + 30z = 652-400$

$14z = 252$

Divide by 14

$z = 18$

Substitute $z = 18$ in $x = 100 - 4z$

$x = 100 - 4 * 18$

$x = 100 - 72$

$x = 28$

To calculate y, we have:

$y = 3z$

$y = 3 * 18$

$y = 54$

6 0

2 years ago

What is the answer to this question?

Yanka [14]

Answer:

Step-by-step explanation:

there is no question

6 0

3 years ago

Read 2 more answers

Andy's Rental Car charged an initial fee if $20 plus an additional $30 per day to rent a car. Buddy's Rental Car charges an init

steposvetlana [31]

Andy's rental car 20+30n
Buddy's rental car 36+28n
20+30n=36+28n
2n=16
n=8
cost for 8 days is 20+30*8=260
Cost will be the same for both companies for 8 days. Cost is $260

4 0

3 years ago

Read 2 more answers