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2 years ago

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Mathematics

1 answer:

Sladkaya [172]2 years ago

8 0

Answer:

all the answers are there in safari and also can refer to your text book

Step-by-step explanation:

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PLSSSS HELPPPPPPPPPPPPPPPPPP

MArishka [77]

Answer:

$\huge\boxed{\sf Option \ 1}$

Step-by-step explanation:

People surveyed = 42

People who approved = 25

So, the sample is:

25 residents who approve.

And population:

42 residents surveyed.

$\rule[225]{225}{2}$

3 0

2 years ago

Solve the simultaneous equation 2x-5y=9 3x+4y=2

Dmitriy789 [7]

Answer/Step-by-step explanation:

2x-5y=9

Add 5y to both sides of the equation.

2x=9+5y

Divide each term by 2 and simplify.

Divide each term in 2x=9+5y by 2

$\frac{2x}{2} =\frac{9}{2} +\frac{5y}{2}$

Cancel the common factor of 2.

Divide x by 1.

$x=\frac{9}{2} +\frac{5y}{2}$

$y=\frac{-9}{5} +\frac{2x}{5}$

----------------------------------------------------------------------------------------------------------------

3x+4y=2

Add 4y to both sides of the equation

3x=2+4y

Divide each term by 3 and simplify.

Divide each term in 3x=2+4y by 3.

$\frac{3x}{3} =\frac{2}{3} +\frac{4y}{3}$

Cancel the common factor of 3.

Divide x by 1.

$x=\frac{2}{3} +\frac{4y}{3}$

$y=\frac{-1}{2} +\frac{3x}{4}$

5 0

2 years ago

Barbara can pay either $80 per month or one lump sum of $800 per year for car insurance. How much does she save yearly if she ch

Schach [20]

Answer:

$160

Step-by-step explanation:

In the monthly payment option she would pay $80 per month, therefore in a year (12 months) she would pay:

$80*12 = $960

We can see that this amount is greater than the $800 she would pay in the lump sum payment option.

The money she would save is:

$960 - $800 = $160

She would save $160 yearly with the lump sum payment option.

4 0

3 years ago

Decrease 784 in the ratio 3:4

Y_Kistochka [10]

Answer:

336 and 448

Step-by-step explanation:

sum the ratio

divide the actual number by the sum i.e 784÷7=122

multiply 112 by 3 and by 4

4 0

3 years ago

Chan receives a bonus from his job. He pays 30% taxes, pays 30% charity and 25% debt. Has $600 remaining from his bonus. What wa

Verdich [7]

Answer:

b = $4000

Step-by-step explanation:

Let b represent the bonus amount.

Then the bonus, b, less the three deductions, is represented by

b - 0.30b - 0.30b - 025b, and this comes to $600. Find the value of b.

b - 0.85b = $600, or

0.15b = $600

Then b = $4000

8 0

3 years ago

The photo contains the question​

The photo contains the question