2 years ago

Which equation has a solution of t = 1/4

Mathematics

2 answers:

ValentinkaMS [17]2 years ago

8 0

Answer:

C. 2t = 1/2

Step-by-step explanation:

A. 2 1/4 + (1/4) = 4

9/4 + 1/4 = 4

10/4 = 4

2 1/2 = 4 X

B. 4(1/4) = 16

1 = 16 X

C. 2(1/4) = 1/2

1/2 = 1/2

D. (1/4) - 1 = 3/4

-3/4 = 3/4 X

ss7ja [257]2 years ago

5 0

Answer:

2t = 1 / 2

Step-by-step explanation:

2t = 1 / 2

t = 1 / ( 2 x 2 )

t = 1 / 4

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2 years ago

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Four times a number added to 3 times a larger number is 31. Seven subtracted from the larger number is equal to twice the smalle

aev [14]

Let the smaller number be x.
Let the bigger number be y.

$\begin{cases} &4x + 3y = 31 \tex{ ----- (1) } \\ &y- 7 = 2x \tex{ ----- (2) } \end{cases}$

Rearrange equation (2):
$\begin{cases} &4x + 3y = 31 \tex{ ----- (1) } \\ &y = 2x + 7 \tex{ ----- (2) } \end{cases}
$

Sub (2) into (1):

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Answer: The two numbers are 1 and 9.

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