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inn [45]
3 years ago
15

Which equation is a true proportion?

Mathematics
2 answers:
Svetllana [295]3 years ago
7 0

Answer:

you need to put a picture or type the equations of the proportion cause nobody will know what you mean

Step-by-step explanation:

which equation is a true proportion

what are the equations?

Lelechka [254]3 years ago
7 0
What are the equations
Lmk if this helped
Give me the equation and I’ll help!!!
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Indicate the equation of the given line in standard form. The line through point (-3, 4) and perpendicular to a line that has sl
statuscvo [17]
To be perpendicular the product of the two slopes must equal -1.

2m/5=-1

2m=-5

m=-2.5

since y=mx+b we have so far

y=-2.5x+b, using point (-3,4) we can solve for b

4=-2.5(-3)+b

4=7.5+b

b=-3.5 so

y=-2.5x-3.5  We can multiply the whole equation by two so that the coefficients are integers...

2y=-5x-7  add 5x to both sides

5x-2y=-7
6 0
2 years ago
22.5x−4.6=3.5 Solve correctly
Colt1911 [192]

Answer:

x = 0.36

Step-by-step explanation:

22.5x − 4.6 = 3.5

first, add the -4.6 over

22.5x = 8.1

then, divide 8.1 by 22.5

x = 0.36

best of luck!

8 0
3 years ago
Transform both equations in each system of equations so that each coefficient is an integer.
inysia [295]
For the first one multiply each term by the LCM of 4 and 6, which is 12:-

15x -36 = 2y..................(1)

and second multiply by 5:-

2x + y = 9..............(2)

solving:-
from equation (2) y = 9-2x,  substitute  in equation (1):-

15x - 36 = 2(9-2x) = 18 - 4x
19x = 54
x = 54/19 = 2.84

so y =  9 - 2(2.84) = 3.32


4 0
3 years ago
In the diagram, AB = 10 and AC = 2√10. What is the perimeter of △ABC?
Zigmanuir [339]
<span>D. 20 + 2âš10 units To solve this, you simply need to calculate the length of each side of the triangle with the vertexes of A(3,4), B(-5,-2), and C(5,-2). The length of each side is simply calculated using the pythagoras theorem. Note that it doesn't matter what order you do the subtraction. The absolute value will be the same and if it happens to be negative, not a problem since it will become positive once you square the values. So the length of side AB is sqrt((3-(-5))^2 + (4-(-2))^2) = sqrt(8^2 + 6^2) = sqrt(64 + 36) = sqrt(100) = 10. The length of side BC is sqrt((-5 - 5)^2 + (-2 - (-2))^2) = sqrt(-10^2 + 0^2) = sqrt(100+0) = sqrt(100) = 10. And finally, the length of side AC is sqrt((3-5)^2 + (4-(-2))^2) = sqrt(-2^2 + 6^2) = sqrt(4+36) = sqrt(40) = 2 * sqrt(10) Finally, add all the lengths together. 10 + 10 + 2âš10 = 20 + 2âš10</span>
4 0
3 years ago
the price of a new pair of sneakers is $79.95. if sales tax is 7.5%, then approximately, how much tax will be paid on sneakers?
Firlakuza [10]

Answer:

$6

Step-by-step explanation:

Find 7.5% of the sneaker price, by multiplying the price by 0.075:

79.95(0.075)

= 6

So, approximately, the tax will be $6

3 0
3 years ago
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