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3 years ago

The sum of two numbers is 19. Three times the larger is 3 more than 6 times the smaller. Find the numbers.

Mathematics

1 answer:

ella [17]3 years ago

6 0

Answer:

x=6

y=13

Step-by-step explanation:

The statement says that:

$3x=6y+3\\$

Been y the smaller and x the larger. The other equation that we have is the summation of the two numbers. Then we have 2 equations and 2 unknowns

$1. 3x=6y+3\\2. x+y=19\\$

Solving the equations the answers is x=13 and y=6.

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Janet bought a book for $19.95, and the tax was 6.25%. including tax how much did she pay round to nearest cent

drek231 [11]

Answer:$21.2

Step-by-step explanation:

multiply 19.25*6.25 then divide by 100 then add that answer onto 19.25 to then get an estimate of 21.2 dollars

3 0

3 years ago

Which value can be added to the set below without changing its mean?

shusha [124]

Answer:

15..

Step-by-step explanation:

4, 10, 14, 18, 22, 22

Mean = (4 + 10 + 14 + 18 + 22 + 22)/6

= 90/6

= 15.

Number to be added, 'y'

For the mean to be the same

(90 + y) / 7 = 15

90 + y = 15 × 7

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3 years ago

Find the value of x and then the measure of each angle. You should have 3 answers.

Softa [21]

Answer:

x = 7

3x + 11 = 32

8x + 2 = 58

Step-by-step explanation:

3x + 11 + 8x + 2 = 90

11x + 13 = 90

11x = 77

x = 7

3x + 11 = 3(7) + 11 = 32

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5 0

3 years ago

A theater sells adult tickets for $8.00 and Children's tickets for 5.50. Sally bought some of each kind (not the same number) an

sdas [7]

8x +(5.5)y=78.50 is the equation.

8 0

3 years ago

find the length of each isosceles right triangle when the hypotenuse of the given measure given 5 to the square root of 6

iragen [17]

In isosceles right triangle, legs are equal. Let each leg is of x units . And the given hypotenuse is 5 square 6. We use pythagorean identity here, which is

$a^2 + b^2 = c^2$

Where a=b=x and c= 5 square root 6

$x^2 +x^2 =(5 \sqrt6)^2$

$2x^2 = 150$

$x^2 =75$

$x= 5 \sqrt 3$

And that's the length of both the legs . ANd that's the required answer .

8 0

3 years ago