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kramer
2 years ago
12

X= algebraic expression? 3=18 4=32 5=50 7=98

Mathematics
1 answer:
denis-greek [22]2 years ago
7 0

Hi there!

Answer:

1. 3=18(6*3=18 and 3*6=18)

2. 4=32(4*8=32 and 8*4=32)

3. 5=50(5*10=50 and 10*5=50)

4. 7=98(7*14=98 and 14*7=98)

Step-by-step explanation:

Division property of equality is dividing both sides of an equation by the same non-zero number does not change the equation.

Multiplication property of equality is multiplying both sides of an equation by the same number does not change the equation.

Addition property of equality is adding the same number to both sides of an equation does not change the equation.

Subtraction property of equality is subtracting the same number from both sides of an equation does not change the equation.

a÷c=b÷c for c≠0

Distributive property: ⇒ a(b+c)=ab+ac

___________________________

3=18

18/3=6

3*6=18

6*3=18

18/6=3

______________________

4=32

32/4=8

32/8=4

4*8=32

8*4=32

___________________________

5=50

50/5=10

50/10=5

10*5=50

5*10=50

_______________________________

7=98

7*14=98

98/14=7

98/7=14

14*7=98

_________________________________

Hope this helps!

-Charlie

Have a great day!

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Step-by-step explanation:

<u><em>The question is incomplete, so the complete question is below:</em></u>

A\ cell \ phone \ company\  offers\  two \ different \ plans.

Plan\ A\ costs\ \$92\ per\ month\ for\ unlimited\ talk\ and\ text.\ Plan\ B\ costs \ $0.20\ per\ minute\ plus\ \$0.10\ per\ text\ message\ sent.You\  need \  to\   purchase \  a \  plan \  for\   your \  14-year-old \  sister.Your\  sister\  currently \ uses\  1,750 \ minutes\  and \ sends\  1,650 \ texts\  each \ month.(1) What\  is\   your \  sister's\   total\   cost\   under \  each\   of\   the\   two\   plans?

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Cost of the Plan A = $92.

<u><em>Now, to find the cost under Plan B:</em></u>

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(2) The total cost under Plan A is $92 and the total cost under Plan B is $1,030.

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