3 years ago

Do the ratios 3:2 and 54:10 form a proportion

Mathematics

1 answer:

Bas_tet [7]3 years ago

5 0

Answer:

No.

Step-by-step explanation:

3/2=1.5 and 54/10=5.4.

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3 years ago

Help find the value of x please

lyudmila [28]

Answer:

138

Step-by-step explanation:

Because 180-42

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3 years ago

A business trip reimbursed $0.55 per mile. Mr. Jackson has a budget of $70 for the round trip. If he is traveling to a town 61 m

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2 years ago

Use the normal distribution of SAT critical reading scores for which the mean is 502 and the standard deviation is 116. Assume t

PSYCHO15rus [73]

Answer:

(a) 93.19%

(b) 267.3

Step-by-step explanation:

The population mean and standard deviation are given as 502 and 116 respectively.

Consider, <em>X</em> be the random variable that shows the SAT critical reading score is normally distributed.

(a) The percent of the SAT verbal scores are less than 675 can be calculated as:

$P(X$

Thus, the required percentage is 93.19%

(b)

The number of SAT verbal scores that are expected to be greater than 575 can be calculated as:

$P(X>575)=P(\frac{x-502}{116}>\frac{575-502}{116}\\P(X>575)=P(Z>\frac{575-502}{116})\\P(X>575)=P(Z>0.6293)\\P(X>575)=0.2673$

So,

Out of 1000 randomly selected SAT verbal scores, 1000(0.2673) = 267.3 are expected to have greater than 575.

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3 years ago

How many 10 kobo coins are there in #9.90?

baherus [9]

Answer:

Step-by-step explanation:

1₦ = 100 k

₦9.90 =?

=990k

990/10=99

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2 years ago