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OleMash [197]
2 years ago
9

If y varies directly as x and y=32 when x=4 find the value of y when x=5

Mathematics
1 answer:
Alex Ar [27]2 years ago
3 0

Answer:

y=40

Step-by-step explanation:

32 divided by 4 equals 8. And 5 times 8 equals 40.

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1/96

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3 years ago
Draw graphs of the following lines: The line through (-5, 2) having the slope of -3
Ivanshal [37]
What you want to do here is take this information and plug it into point-slope form. any time you're given a point and a slope, you generally want to plug it into this equation: y - y1 = m(x - x1).

in this equation, m is your slope and (x1, y1) is a given point. plug in your info--slope of -3 and (-5, 2).

y - 2 = -3(x + 5)

that is the equation of your line. however, if you want to graph it, this doesn't really make much sense to you. convert it to slope-intercept form, y = mx + b, by solving for y.

y - 2 = -3(x + 5) ... distribute -3
y - 2 = -3x - 15 ... add 2
y = -3x - 13 is your equation.

to graph this, and any other y = mx + b equation, you want to start with your y-intercept if it's present. your y intercept here is -13, which means the line you wasn't to graph crosses the y-axis at y = -13, or (0, -13). put a point there.

after you've plotted that point, you use your slope to graph more. remember that your slope is "rise over run"--you rise up/go down however many units, you run left/right however many units. if your slope is -3, you want to go down 3 units, then go to the right 1 unit. remember that whole numbers have a 1 beneath them as a fraction. -3/1 is your rise over 1.
6 0
3 years ago
Read 2 more answers
Is this right? please help me
Dimas [21]

Answer: i would help but the picture is blank .

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
5 miles=8km how many miles in 80km
Irina-Kira [14]
5miles/8km = xmiles/80km

8x=400

x=50
4 0
3 years ago
Which expression represents "10 less than the product of 12 and 9"?
seraphim [82]

Answer:

answer.

Step-by-step explanation:

B. 12x9-10 is the answer

6 0
2 years ago
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