3 years ago

In direct variation, the variables change by a constant _______________.

Mathematics

1 answer:

jolli1 [7]3 years ago

5 0

Direct variation is of the form y=kx (inverse variation is of the form y=k/x)

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The straight line ℓ is perpendicular to the line y + 2x = 9 and passes through the point p(4, 3). find the x-intercept of ℓ.

evablogger [386]

The slope of the line l is the opposite reciprocal of y+2x=9. Rearranged the equation to y=9-2x and we get a slope of -2. The opposite reciprocal of -2 is 1/2.

y-y=m(x-x)
y-3=.5(x-4)
y=.5x+1

At the x-intercept, y=0, so
0=.5x+1
-1=.5x
x=-2

8 0

3 years ago

2/3=1.2/x solve for x

Anvisha [2.4K]

First isolate x by multiplying by x on both sides. It will look like this:

(2/3)x=1.2

Then devise by (2/3) on both sides to get:

x= 1.2/(2/3)

The easiest way to get this is plug that into a calculator and get the answer:

x=1.8

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3 years ago

A sample of 260 students enrolled at a university were asked what they intended to do after graduation. The results are shown be

vovikov84 [41]

ANSWER

$30\%$

EXPLANATION

The total number of students can be calculated by adding all the frequencies.

From the graph the total frequency is,

$39+117+78+26 =260$

The number of students who intend to go into state or local government after graduation is 78.

The percentage of students who intend to go into state or local government after graduation

$= \frac{78}{260} \times 100\%$

$= \frac{3}{10} \times 100\%$

$= 30\%$

4 0

3 years ago

Read 2 more answers

BRAINLIEST, hurry please!!

tester [92]

The answer i D because 11-6=5

8 0

2 years ago

The James63 Algorithm:<br><br> 13 x 63 + 592 / 72 x V<br><br> V = 13 x 63 + 592 / 72

Nonamiya [84]

Answer:

answer 1962323