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jeka57 [31]
3 years ago
11

Julias text messaging plan costs $8 for the first 400 messages and 20e for each additional text message. If she owes $24.00 for

text messaging in the month of
September, how many text messages did she send that month?
Mathematics
1 answer:
Makovka662 [10]3 years ago
4 0

Answer:

160 is the answer because 8x20 is 160 also 20÷400 is 20 so that made pretty good sense

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(Free points)<br><br>Factorise x³ + 216y³ + 8z³ - 36xyz​
Nadusha1986 [10]

Answer:

[x+6y+2z][x²+(6y)²+(2z)²-6xy-12yz-2xz]

Step-by-step explanation:

x³+216y³+8z³-36xyz

x³+(6y)³+(2z)³-3×6×2×xyz

As we know

a³+b³+c³-3abc=(a+b+c)(a²+b²+c²-ab-bc-ca)

Let a=x

b=6y

c=2z

Now.

[x+6y+2z][(x²+(6y)²+(2z)²-x×6y-6y×2z-x×2z]

[x+6y+2z][x²+(6y)²+(2z)²-6xy-12yz-2xz]

3 0
3 years ago
Read 2 more answers
Find f (0) if f(t) = t2 – 2t – 5.
Sonbull [250]
Answer is -5.

Explanation- Since t equals 0. You put 0 in place of every t.

0(2)- 2(0)- 5 =
0-0-5= -5
8 0
3 years ago
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State the postulate that verifies AB is in plane Q when points A and B are in Q. Postulate 1: A line contains at least two point
Dmitrij [34]
Answer: <span>Postulate 4: If two points lie in a plane, the line containing them lies in that plane.

</span>That is because two points, call them A and B, always form a line, and so, given that they form the line AB and they are in the plane Q, the line AB is in the plane Q.<span />
4 0
3 years ago
This is the question.
madreJ [45]

Answer:

8 rows and 3 extra

Step-by-step explanation:

40/5=8

43-40=3

4 0
3 years ago
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2a is any number a multiplied by the number 2. Calculate the value of 2a for a = 7.
marshall27 [118]

Answer:

14

Step-by-step explanation:

step 1.

substitute 'a' with 7

You are then left with a multiplication problem.

step 2.

solve 2 × 7

answer is 14

3 0
3 years ago
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