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3 years ago

What is the value of x in the equation 3x - 4y=65, when y=4?

Mathematics

1 answer:

grigory [225]3 years ago

7 0

Answer:

Step-by-step explanation:

Given 3x-4y=65

Y=4

So 3x-4×4=65

3x-16=65

3x=65+16

X=81/3

X=27

So value of X is 27

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The Carter Motor Company claims that its new sedan, the Libra, will average better than 31 miles per gallon in the city. Assumin

Nutka1998 [239]

Answer:

The null hypothesis $H_o : \mu = 31$

The alternative hypothesis $H_a : \mu > 31$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 31 \ miles / gallon$

Generally

The null hypothesis is that the company's new sedan, the Libra, will have an average of $\mu = 31 \ miles / gallon$

This mathematically represented as

The null hypothesis $H_o : \mu = 31$

The alternative hypothesis is that the company's new sedan, the Libra, will have an average better than $\mu = 31 \ miles / gallon$

This mathematically represented as

The alternative hypothesis $H_a : \mu > 31$

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3 years ago

The distance from Scott's house to school is 3/5 of a mile scott walked 2/3 of the way there before he stopped to pick up his fr

gregori [183]

Answer:

2/5

Step-by-step explanation:

2/3 of 3/5 means to multiply the fractions to get 6/15

6/15 can be reduced by dividing by 3 to get 2/5

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2 years ago

Answer these questions with work

sweet-ann [11.9K]

First, you make 9 into a fraction which would become 36/4
then, subtract 9/4 from both sides so that would give you 3/4x = 27/4
then divide each side by 3/4 (same thing as multiply by its reciprocal) and that would give you x=9

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3 years ago

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Is 7/11 and 42/60 proportional?

il63 [147K]

No they arent proportional

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3 years ago

Factor 10a^3 b ^2 −5a^2 b+15a^2 b^3 PLS HELP IM STUCKK

kykrilka [37]

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