3 years ago

Homework 4.1-4.2 worksheet

Mathematics

1 answer:

Tasya [4]3 years ago

8 0

I don’t know what do you mean

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I need help on this the full answer

Elan Coil [88]

Answer:

t > 3

Step-by-step explanation:

1 hour = 194

582 / 194 = 3

She needs to ride for 3 hours to burn 582 calories

She needs to ride for more than 3 hours to burn more than 582 calories

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3 years ago

Bye bye bye bye bye bye

Evgen [1.6K]

Answer:

Bye bye bye bye thank you

Step-by-step explanation:

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2 years ago

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subtracting 1 to the product of 5 and x gives the same value as adding 10 to the product of 3 and x. what value of x makes the s

Vilka [71]

Answer:17

Step-by-step explanation: You just follow the steps.

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2 years ago

Suppose you know that Mr. and Mrs. Vincent have at most eight children. One day you happen to meet two girls who were the Vincen

lianna [129]

Answer:

The number of children are 4 out of which 3 are girls

Step-by-step explanation:

Data provided in the question:

P(Two randomly selected children are girls) = $\frac{1}{2}$

now,

let the number of children be 'n'

the number of girls be 'x'

thus,

P(Two randomly selected children are girls) = $\frac{^xC_2}{^nC_2}$ = $\frac{1}{2}$

also,

$^nC_r$ = $\frac{n!r!}{(n-r)!}$

thus,

$\frac{\frac{x!2!}{(x-2)!}}{\frac{n!2!}{(n-2)!}}$ = $\frac{1}{2}$

$\frac{x(x-1)}{n(n-1)}$ = $\frac{1}{2}$

2x(x-1) = n(n-1)

now

for x = 3 and n = 4

i.e

2(3)(3-1) = 4(4-1)

12 = 12

hence, the relation is justified

therefore,

The number of children are 4 out of which 3 are girls

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3 years ago

What is 7/10 in a decimal and percent

Ksivusya [100]

In a decimal it is 0.70 and in a percent it is 70%

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3 years ago

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