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Aloiza [94]
3 years ago
8

| If f(x) = 7 + 4x and g(x)= 7, what is the value of (f/g)(5)

Mathematics
2 answers:
attashe74 [19]3 years ago
7 0

Answer:

27/7.

Step-by-step explanation:

(f/g)x = (7 + 4x) / 7

(f/g)(5) = (7 + 4(5)/ 7

= 27/7.

Strike441 [17]3 years ago
6 0

Yo sup??

f(x)=7+4x

g(x)=7

f/g(5)

=7+4*5/7

=27/7

Hope this helps

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At a bake shop, the cost of flour is $2.50 per pound and increases at a rate of $0.07 per month. The cost of cocoa is $6.00 per
Vesna [10]

Answer:

Step-by-step explanation:

We will find two equations for this system, one representing flour and the other representing cocoa.  For the flour, we start with $2.50, and the cost goes up .07 per month, x. The equation for that is

y = .07x + 2.50

For the cocoa, the equation is written in the exact same way, but the cost goes down.  Down is a negative thing while up is a positive thing.  The cost starts at $6.00 and goes down .03 per month, x. The equation for that is

y = -.03x + 6.00

Comparing the first equation to the second, the .07 is positive because the cost goes UP that amount per month and the .03 is negative because the cost goes DOWN that amount per month.  Get it?

If y is cost and we are tryong to find out where the cost is the same, we are looking for when y is the same.  If the first y is equal to .07x + 2.50 and the second y is equal to -.03x + 6.00, and y is equal to y, then

.07x + 2.50 = -.03x + 6.00 (this is setting the first y equal to the second y).  This is the system that describes how to find the number of months x when the cost y is the same. We'll solve it just for practice.

Combining like terms we get

.10x = 3.5 so

x = 35

Now back sub in what x equals to solve for y.  If x = 35, then in the first equation,

.07(35) + 2.50 = y and

y = 4.95 (you could have used the second equation and subbed in 35 for x and you will get the exact same y value.  Promise!)

What this answer tells us is that 35 months after the start of this pricing, the cost of flour will be the same as the cost of cocoa.  But immediately after 35 months, the costs will not be the same anymore.  It is only AT 35 months.  At 36 months, the costs will be different.

7 0
2 years ago
In a school day each student has to participate either in music or sport . Out of 350 students of the school 250 participated in
vredina [299]

Answer:

a. 45

b. 305

(left side) just sports, (middle) amount that did both, (right side) kids that just did music

Step-by-step explanation:

a. 250 + 145 = 395 395-350 = 45

b. 350-45= 305

ope this helps :)

5 0
2 years ago
Whats 3.8412 in place values
ELEN [110]
3 in the hundred-thousand place, 8 in thousands place, 4 in the hundreds place, 1  in the tens place, 2 in the one's place.
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2 years ago
Four points A, B, C, and D are coplanar, but only two at a time are collinear. Suppose a line is drawn through each pair of poin
Brut [27]
Based on the given details above, the number of lines that can be drawn through each pair of points would be six: Four sides and two diagonals. When we say coplanar points, these are points that lie in the same plane. This is made up of three or more points. Hope this answer helps. 
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Wire is commonly made by putting hot metal through a hole in a plate. What length of wire, of diameter 1mm, can be made from a 1
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Basing on the question the volume of metal should be equal to the volume of the wire.
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since the volume of the wire is same as the volume of the metal, we simply substitute.

1 cm^3 = 3.14 x r^2 x h

h is the length of the wire.
the diameter of the wire is 1 mm or 0.1 cm, to get the radius we divide it by 2, 0.1 cm / 2 is 0.05 cm, we substitute

1 cm^3= 3.14 x (0.05 cm)^2 x h
1 cm^3= 3.14 x 0.0025 cm^2 x h
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h=0.00785 cm or 0.0785 mm.
7 0
3 years ago
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