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gregori [183]
3 years ago
5

Ed is 7 years older than Ted.Ed's age is also 3/2 times Ted's age.How old is Ed and Ted

Mathematics
2 answers:
My name is Ann [436]3 years ago
3 0
x-Ted's\ age\\x+7-Ed's\ age\\\\x+7=\dfrac{3}{2}x\ \ \ |subtrac\ 7\ from\ both\ sides\\\\x=\dfrac{3}{2}x-7\ \ \ |subtract\ \frac{3}{2}x\ from\ both\ sides\\\\-\dfrac{1}{2}x=-7\ \ \ |multiply\ both\ sides\ by\ (-2)\\\\\boxed{x=14}\leftarrow\ Ted's\ age\\\\14+7=\boxed{21}\leftarrow Ed's\ age
pochemuha3 years ago
3 0

Answer:

Ted is 14 years old, and Ed is 21 years old.

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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sukhopar [10]

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Step-by-step explanation:

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In a​ study, researchers wanted to measure the effect of alcohol on the hippocampal​ region, the portion of the brain responsibl
ziro4ka [17]

Answer:

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Step-by-step explanation:

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We'll conduct a hypothesis test at the 0.01 significance level with

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Alternate hypothesis: x < 9.02 cm³

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According to the sample, with 99% confidence, t statistic for the value X=9.02 can be found using the formula:

t=\frac{X-M}{\frac{s}{\sqrt{N} } } where

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If we put these numbers in the formula:

t=\frac{9.02-8.12}{\frac{0.8}{\sqrt{13} } } =4.056

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3 years ago
Single choice question
posledela

Answer:

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Because the discount price is the whole equation 24(1-x),

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