Step-by-step explanation:
If this answer is correct please make me as a brainlist
If you would like to solve a set of equations, you can do this using the following steps:
equation a: y = 15 - 2z /*(-2)
equation b: 2y = 3 - 4z
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-2y = (-2) * (15 - 2z)
-2y = -30 + 4z
2y = 3 - 4z
The mistake was made at step 2: −2y = 15 − 2z [equation a in step 1 is simplified.]. The correct simplification would be <span>-2y = -30 + 4z. </span>
Answer:
6(-5)-9
-30-9
=-39
Step-by-step explanation:
" 100% " means "the whole thing",
and "is" can be replaced by "is equal to".
You have said "The whole thing of a number is equal to 61."
or
"61 is equal to the whole thing of a number."
The only number that 61 can be equal to is 61.
Answer:
The range gives you the spread of the whole data set, the interquartile range gives you the spread of the middle half of a data set.
Step-by-step explanation:
