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Eduardwww [97]
3 years ago
12

Simplifying Variable Expression

Mathematics
1 answer:
andrew-mc [135]3 years ago
7 0
X + 3 • ( 10 + y ) - 7x - 4
x + 30 + 3y - 7x - y
x - 7x + 3y - y + 30
-6x + 2y + 30
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Round 5,099.620 to the nearest hundred place
ICE Princess25 [194]

Answers and Step-by-step explanations:

When rounding, you should always look at the placement behind what you are trying to round to. So instead of looking at the hundred's placement, which is 0, we need to look at the ten's placement.

(Important:) When rounding, you should always remember that if a number is 1 - 4 when rounding, it does not round up the the next placement. If a number is 5 - 9, then it gets rounded to the next placement.

<em>Hundred's placement:</em> The 9 in the <u>ten's spot </u>(5,0<u>[9]</u>9.620) is on the 5 - 9 scale, so the hundred's placement rounds up to the next number.

5,100.620

<em>Hundredth's placement:</em> Anytime that the "th" is at the end of a word like "hundred" in rounding, it means to go behind (or to the right of) the decimal point. So, 2 falls into the 1 - 4 scale, so it doesn't get rounded.

5,099.600 (or 5,100.600 because of the answer earlier.)

I hope this helps.

6 0
2 years ago
could someone explain to me what intervals are in algebra? how would i know if it is positive, increasing, negative, or decreasi
aalyn [17]

Answer:

Interval positive and negative

The positive regions of a function are those intervals where the function is above the x-axis. It is where the y-values are positive (not zero). The negative regions of a function are those intervals where the function is below the x-axis. ... y-values that are on the x-axis are neither positive nor negative.

Step-by-step explanation:

7 0
3 years ago
Find the value of p.​
Rainbow [258]
P=1
7p + 13=20
-13 | -13
7/7
P=1
4 0
3 years ago
Please help? will mark branliest
Art [367]

Answer:

-0.25

Step-by-step explanation:

did the math

its 12 + {2 - (4xa^2)} dived by 7 + b

    12 + {2 - (100} dived by 8

    12 + -98 dived by 8

        -0.25

8 0
3 years ago
Can someone please help me please?
san4es73 [151]

Answer:

c

Step-by-step explanation:

5 0
3 years ago
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