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2 years ago

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Jeffrey is n years old. His sister is 5 years older than Jeffrey’s age. Write an expression that represents the relationship of

his sister’s age in terms of Jeffrey’s age, where n represents Jeffrey’s age. I need help ASAP PLEASE!!

1 answer:

weqwewe [10]2 years ago

8 0

Answer:

jeffreys sister is 5+n

Step-by-step explanation:

so practically jefferys sister is N or jefferys age plus 5

hope this helped

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Step-by-step explanation:

<h2>[1]</h2>

SI = $250
Rate (R) = 12 $\sf \dfrac{1}{2}$ %
Time (t) = 4 years

$\longrightarrow \tt { SI = \dfrac{PRT}{100} } \\$

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<h2>__________________</h2>

<h2>[2]</h2>

2/7 of the balls are red.
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Rest are yellow.
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Let the total number of balls be x.

→ Red balls + Blue balls + Yellow balls = Total number of balls

$\longrightarrow \tt{ \dfrac{2}{7}x + \dfrac{3}{5}x + 36 = x} \\$

$\longrightarrow \tt{ \dfrac{10x + 21x + 1260}{35} = x} \\$

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$\longrightarrow \tt{ 31x + 1260= 35x} \\$

$\longrightarrow \tt{ 1260= 35x-31x} \\$

$\longrightarrow \tt{ 1260= 4x} \\$

$\longrightarrow \tt{ \dfrac{1260 }{4}= x} \\$

$\longrightarrow \underline{\boxed{ \tt { 315 = x }}} \\$

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A/Q,

3/5 of the balls are blue.

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$\longrightarrow \tt{ Balls_{(Blue)} =\dfrac{3 }{5}(315)} \\$

$\longrightarrow \tt{ Balls_{(Blue)} = 3(63)} \\$

$\longrightarrow \underline{\boxed{ \green {\tt { Balls_{(Blue)} = 189 }}}} \\$

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