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My name is Ann [436]
4 years ago
15

Simplify the expression -2(3z-4y)-z

Mathematics
1 answer:
Alex17521 [72]4 years ago
4 0
Multiply -2 by 3z and -4y
-6z + 8y -z
subtract z from -6z
-7z + 8y should be your answer
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I have 7 hundreds blocks, 5 tens blocks, and 8 ones blocks. I use my blocks to model two 3-digit numbers. What could my two numb
lawyer [7]
There 7 blocks of hundreds which means each such block is equivalent to 100.
There are 5 blocks of tens, which means each such block is equivalent to 10.
There are 8 blocks of ones, which means each such block is equivalent to 1.

The total of these blocks will be = 7(100) + 5(10) + 8(10) = 758

We can make several two 3-digit numbers from these blocks. An example is listed below:

Example:
Using 3 hundred block, 2 tens blocks and 4 ones block to make one number and remaining blocks to make the other number. The remaining blocks will be 4 hundred blocks, 3 tens blocks and 4 ones blocks
The two numbers we will make in this case are:

1st number = 3(100) + 2(10) + 4(1) = 324
2nd number = 4(100) + 3(10) + 4(1) = 434

The sum of these two numbers is  = 324 + 434 = 758
i.e. equal to the original sum of all blocks.

This way changing the number of blocks in each place value, different 3 digit numbers can be generated. 
5 0
3 years ago
Find the LCM of 2 and 21
Alexus [3.1K]
The answer is 10 because it had
6 0
4 years ago
X/3 equals 1351 over seven
Fantom [35]
X/3=1351/7
cross multiply
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divide by seven on both sides
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5 0
3 years ago
Which number is the answer
const2013 [10]

Answer:

1

Step-by-step explanation:

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So she only needs one.

7 0
3 years ago
How to simplify 8(7+8u)
Sliva [168]

Answer:

56+64u

Step-by-step explanation:

distribute the 8

56+64u

8 0
3 years ago
Read 2 more answers
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