Cannon balls for an antique cannon are stacked next to it in four layers to form a square pyramid. How many cannon balls are in a pryimad

Answers

Answer 1

Answer: the amount of balls in a given layer can be found by squaring the layer it is in

4 layers
top layer (1st) is 1
2nd is 4
3rd layer is 9
4th is 16

add them up
1+4+9+16=30

30 in that pyramid

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A climber starts descending from 533 feet above sea level and keeps going until she reaches 10 feet below sea level.How many feet did she descend?

Answers

It's actually 543 feet because at 523 feet that would mean she is still 10 feet above sea level. So you need to add another 20 feet to get to 10 feet below sea level.

An employee earns $7.00 an hour for the first 35 hours worked in a week and $10.50 for any hours over 35. One week's paycheck (before deductions) was for $308.00. How many hours did the employee work? *write an equation and solve

Answers

$308.00-( 7.00*35)+(10.50\a)$308.00-$245.00=$63.00$63.00/$10.50=6 hoursA=6

If a - 3= 7, then 2a - 14 =

Answers

a=7+3 -> a=10

2a-14= 2×10-14
=20-14
=6

Solve the equation
5(-4a+8)-5(6a-5)=15

Answers

Step 1: Simplify both sides of the equation.

5(−4a+8)−5(6a−5)=15

(5)(−4a)+(5)(8)+(−5)(6a)+(−5)(−5)=15

−20a+40+−30a+25=15

(−20a+−30a)+(40+25)=15

−50a+65=15

Step 2: Subtract 65 from both sides.

−50a+65−65=15−65

−50a=−50

Step 3: Divide both sides by -50.

-50a/-50=-50/-50

Therefore, the answer would be a=1.

We can factor 5 at the left hand side:

$5[(-4a+8)-(6a-5)]=15$

Divide both sides by 5:

$(-4a+8)-(6a-5)=3 \iff -4a+8-6a+5 = 3$

Sum like terms:

$-10a+13=3$

Subtract 13 from both sides:

$-10a=-10$

Divide both sides by -10:

$a=1$

Is 38.5 mm bigger than 10 cm?

Answers

Well, if you use KHD---DCM, or King Henry does --- dives catching mice or, Kilometers,Hectometers,Dekameters,base,Decimeters,Centimeters, Millimeters. So you see that Millimetres are after Centimeters so, 10 cm is bigger than 35.5mm

Madison is making party favors. She wants to make enough favors so each guest gets the same number of favors. She knows 6 or 8 guests at the party. What is the least number of party favors Madison should make? Plz help me

Answers

A lot of favors Madison is giving

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