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Tomtit [17]
3 years ago
12

SOMEONE PLS HELP ASAP!!!

Mathematics
2 answers:
Andrei [34K]3 years ago
7 0
You can use a volume calculator
Serhud [2]3 years ago
7 0

Answer:

416

Step-by-step explanation:

W x L x H

the rectangle on top would be 256 (16x4x4)

and the rectangle on the bottom would be 160 (10x4x4)

then you would add them together and get 416 (256+160)

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What is the surface area of the regular pyramid given below?
VARVARA [1.3K]
Each trianglar side has an area: (1/2)*8*9=36
the base is a square with an area of 8*8=64
so the total surface area is 36+36+36+36+64=208
5 0
3 years ago
Read 2 more answers
5x + 10/ x+2 *2x/4x-10
Margarita [4]

I believe this would be 5x/2x-5

Hope this helps!

3 0
3 years ago
Kenny’s height is 1 meter 75 centimeters. How tall is Kenny in millimeters? REMEMBER: 1 meter = 100 centimeters : 1 centimeter =
Serga [27]
If I did the math right the answer should be 1,750
6 0
3 years ago
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There are nickles and quarters worth $2.20 in total. If there are 28 coins, how many nickels are there?
Eduardwww [97]
Answer:

There are 24 nickels

Step-by-step explanation:

Let x represent the number of nickels

Let y represent the number of quarters
—————————————————————

Value Value
Type Number of of
of of each all
Coin Coin Coin Coin
—————————————————————
Nickels | x | $0.05 | $0.05x
Quarters | y | $0.25 | $0.25y
—————————————————————
Totals 28 ——— $2.20
•••••••••••••••••••••••••••••••••••••••••••••••••

The first equation comes from the “Number of coins” column.

(Number of nickels) + (Number of quarters) = (total number of coins)

Equation: x + y = 28
—————————————————————
The second equation comes from the “value of all coins” column.

(Value of all nickels) + (Value of all quarters) = (Total value of all coins)

0.05x + 0.25y = 2.20

Remove the decimals by multiplying each term by 100:

5x + 25y = 220
—————————————————————
So we have the system of equations:

{x + y = 28
{5x + 25y = 202

Solve by substitution. Solve the first equation for y:

x + y = 28
y = 28 - x

Substitute (28 - x) for y in 5x + 25y = 220

5x + 25 (28 - x) = 220
5x + 700 - 25x = 220
-20x + 700 = 220
-20x = -480
x = 24

The number of nickels is 24.
————————————————————
Substitute in y = 28 - x
y = 28 - (24)
y = 4

The number of quarters is 4.
————————————————————
Checking:

24 nickels is $1.20 and 4 quarters is $1.00
That’s 28 coins.
Indeed $1.20 + $1.00 = $2.20
————————————————————

6 0
3 years ago
SOS HELP ME IM STUCK
bixtya [17]

Answer:

The answer is i think -12*2

Step-by-step explanation:

6 0
3 years ago
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