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2 years ago

Quarters make up what part of the group of coins ? Write the answer as fraction and word firm

Mathematics

1 answer:

aleksandr82 [10.1K]2 years ago

3 0

Quarts = 25 there are 100 in a dollar so you have 25 out of 100

25/100<span />

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F(x)=-3x+21,find x when f(x)=6

balu736 [363]

Answer:

x=5

Step-by-step explanation:

F(x)=-3x+21,

f(x)=6 = -3x+21

6 = -3x+21

Subtract 21 from each side

6-21 = -3x+21-21

-15 = -3x

Divide each side by -3

-15/-3 = -3x/-3

5 = x

6 0

2 years ago

The line passes through (9,8) and is perpendicular to x-2y=-16

pickupchik [31]

The equation of line perpendicular to x-2y=-16 passing through (9,8) is: y=-2x+26

Step-by-step explanation:

Given

$x-2y=-16\\Adding\ 2y\ on\ both\ sides\\x=2y-16\\Adding\ 16\ on\ both\ sides\\x+16=2y-16+16\\x+16=2y\\2y=x+16\\Dividing\ both\ sides\ by\ 2\\\frac{2y}{2}=\frac{x+16}{2}\\y=\frac{x}{2}+\frac{16}{2}\\y=\frac{1}{2}x+8\\$

The equation is in slope-intercept form, the coefficient of x will be the slope of given line. The slope is: 1/2

As the product of slopes of two perpendicular lines is -1.

$\frac{1}{2}*m=-1\\m=-1*\frac{2}{1}\\m=-2$

Slope intercept form is:

$y=mx+b$

Putting the value of slope

y=-2x+b

To find the value of b, putting (9,8) in the equation

$8=-2(9)+b\\8=-18+b\\b=8+18\\b=26$

Putting the values of b and m

$y=-2x+26$

Hence,

The equation of line perpendicular to x-2y=-16 passing through (9,8) is: y=-2x+26

Keywords: Equation of line, Slope-intercept form

Learn more about equation of line at:

#LearnwithBrainly

4 0

3 years ago

I need to find x but I don't know how

vagabundo [1.1K]

If you're looking for the angle it is a 30, 60, 90, but if you're looking for the length of the hypotenuse it's 5

5 0

3 years ago

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the sum of two consecutive integers is three times their difference.what is the larger number.please help!

Vesnalui [34]

9514 1404 393

Answer:

Step-by-step explanation:

If n is the larger integer, n-1 is the smaller. The difference of consecutive integers is 1, so their sum is ...

n +(n -1) = 3(1)

2n = 4 . . . . . . . . . add 1

n = 2 . . . . . . . . . . divide by 2

The larger integer is 2.

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2 years ago

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The equation below represents Function A and the graph represents Function B:

lana66690 [7]

a)the y-intercept of function A is 9units below the y-intercept of function B

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3 years ago