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Amanda [17]
3 years ago
13

If x varies directly with y and x = 3.5 when y = 14, find x when y = 18.

Mathematics
1 answer:
maks197457 [2]3 years ago
5 0

Answer:

x = 4.5

Step-by-step explanation:

there's definitely other ways to solve this, but I used a proportion.

\frac{3.5}{x} = \frac{14}{18}

Then you can make this equation:

14x = 3.5 * 18

I solved for it and got 4.5 .

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CLICK HERE IF YOU HAVE BIG FEET <br><br> Using the function g( x) = -2 x – 11, calculate g(-3).
Leokris [45]

════════ ∘◦❁◦∘ ════════

<h3>Answer = -5</h3>

════════════════════

<h3>Known</h3>

g(x) = -2x - 11

════════════════════

<h3>Question</h3>

g(-3) = ..?

════════════════════

<h3>Way to do</h3>

#since x inside (x) change into (-3) then it means that you only need to change x into -3

g(-3) = -2(-3) - 11

g(-3) = 6 - 11

g(-3) = -5

════════════════════

6 0
3 years ago
At the spring dance there were 23 more students than 6 times the number of teachers. There were 215 students that attended the d
Mademuasel [1]

Answer: There were 32 teachers.

Step-by-step explanation:

(215 - 23)/6 = amount of teachers

215 - 23 = 192

192/6 = 32

8 0
3 years ago
Read 2 more answers
Find the value of x.
Shalnov [3]

Answer:

74 degrees

Step-by-step explanation:

The arc degree measurement of the arc that is colored in orange is given as 254 degrees.

The remaining part is the part in green.

The green part plus the orange part should equal 360 degrees because that would make a full rotation around the circle.

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The green arc has measurement 106 degrees.

We can find x by computing half the difference of the arcs there.

That is,

x=\frac{1}{2}(254-106)

x=\frac{1}{2}(148)

x=74

8 0
3 years ago
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John mows 247 square feet of lawn per minute. how many square yards of lawn does he mow per hour?
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1647. 1 hour=60 minutes. John can mow 247 square feet per minute, so he can mow 60*247=14820 square feet per hour. 1 yard=3 feet, so 1 square yard =3^2=9 square feet, so in the same duration of time, John can mow 14820/9=1647 square yards (approximately) per hour. 
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4 years ago
The endpoints of the segment AB are A(-2,4) and B(4,0). Find the endpoints of the image after the segment is reflected over the
serious [3.7K]

Answer:

A' ( 2, 4) and B' ( -4, 0)

Step-by-step explanation:

A ( -2, 4) and B( 4,0)  reflected over the y-axis

A' ( 2, 4) and B' ( -4, 0)

the y-coordinate do not change and the x is opposite sign

(x,y) reflected over y-axis (-x, y)

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