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icang [17]
3 years ago
8

Cadence is substituting t=4 and t=6 to determine if the two expressions are equivalent.

Mathematics
2 answers:
liberstina [14]3 years ago
3 0

Answer:

Both expressions are equivalent to 78 when t = 6 ⇒ answer A

Step-by-step explanation:

* To solve this problem substitute the value of t and then check

  the answer

∵ The first expression is 2(7t - 3) ⇒ simplify it

# 2(7t) = 14t

# 2(3) = 6

∴ 2(7t - 3) = 14t - 6

- Substitute t by 4

∴ 14t - 6 = 14(4) - 6 = 56 - 6 = 50

- Substitute t by 6

∴ 14t - 6 = 14(6) - 6 = 84 - 6 = 78

∵ The second expression is 15t - 12

- Substitute t by 4

∴ 15t - 12 = 15(4) - 12 = 60 - 12 = 48

- Substitute t by 6

∴ 15t - 12 = 15(6) - 12 = 90 - 12 = 78

- The first expression has two values

# 50 when t = 4

# 78 when t = 6

- The second expression has two values

# 48 when t = 4

# 78 when t = 6

- From these information

# The two expressions have the same value 78 when t = 6

∴ Both expressions are equivalent to 78 when t = 6

trapecia [35]3 years ago
3 0

Answer: A

Step-by-step explanation: Both expressions are equivalent to 78 when t= 6.

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4 0
2 years ago
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5 0
3 years ago
The average score of this quiz is 24 points with a standard deviation of 1.5 points. What is the probability that someone scored
navik [9.2K]

Answer:

8.08 %

Step-by-step explanation:

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Step 2

The probability that someone scored 21.9 or less is :

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7 0
3 years ago
Jo is thinking of a number. Four less than 9 times the number is 176. Find Jo’s number
kondaur [170]

Answer:

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5 0
2 years ago
Fully factorise 8x+24
irinina [24]
8(x+3)
In this form, it is fully factored. All you need is a GCF, which is 8.
Hope this helps!
6 0
3 years ago
Read 2 more answers
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