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3 years ago

Pleaseeeeeeee helpppppppppppppp!!! :)

Mathematics

2 answers:

vazorg [7]3 years ago

6 0

Answer:

x=-1

y=2

Step-by-step explanation:

3x+2y=1

x-3y=-7

x=3y-7

3(3y-7)+2y=1

9y-21+2y=1

11y=1+21

11y=22

y=22/11=2

x=3(2)-7=6-7=-1

mrs_skeptik [129]3 years ago

5 0

x=0.2

y=2.4

$\frac{0.2}{2.4} \\$

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Find the reciprocal of 3/5

Kisachek [45]

The reciprocal of 3/5 is 5/3.

To get the reciprocal of a fraction, just turn it upside down.

A fraction has a numerator, top number, and a denominator, bottom number.
To get the reciprocal of a fraction, just swap over the numerator and denominator.

If whole numbers, to get the reciprocal of whole number, just divide the whole number by 1 to make it into a fraction, then get the reciprocal of that fraction.

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3 years ago

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The heights of women aged 20 to 29 are approximately normal with mean 64 inches and standard deviation 2.7 inches. Men the same

san4es73 [151]

Answer:

Step-by-step explanation:

$Z=\frac{x-mu}{\sigma }$

X - Heights of women aged 20 to 29: X is N(64, 2.7)

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3 years ago

The goal of a toy drive is to donate more than 1000 toys. The toy drive already has collected 300 toys. How many more toys does

Brilliant_brown [7]

Answer:

Let t be the number of toys.

Since, the toy drive already has collected 300 toys

⇒ t+ 300

Also, it is given that the goal of a toy drive is to donate more than 1000 toys.

We get an inequality:

⇒ $t + 300 > 1000$

Solve an inequality:

$t + 300 > 1000$

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3 years ago

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Andrei [34K]

Answer:

RT is an altitude of GRS

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2 years ago

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Please , I didn't have time to study. god bless to all <3

Naily [24]

This is the first half of the question.
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