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2 years ago

Solve the equation for y 5x-7y=10

Mathematics

1 answer:

leva [86]2 years ago

4 0

Answer:

y = 5x/7 + 10/-7

Step-by-step explanation:

subtract 5x from both side and you should get -7y = -5x + 10

divide negative 7 into both side -7/-7 = -5x/-7 + 10/-7

and the answer is y = 5x/7 + 10/-7

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If (he)={(0,1),(2,3),(-4,1)}, find h^-1(x)

ololo11 [35]

The given function is

$h(x) = \{ (0,1), (2,3), (-4, 1) \}$

The inverse function is

$h^{-1}(x) = \{ (1,0), (3,2), (1,-4)\}$

To get the inverse, we swap each x and y coordinate.

The rule is $(x,y) \to (y,x)$

So that's why the point (0,1) becomes (1,0) for instance.

3 0

2 years ago

Eddie's Evergreens sells Christmas trees and wreaths. Trees cost 3 dollars more than 4 times the price of each wreath. It costs

kari74 [83]

Answer:

$W = 16$

$T = 67$

Step-by-step explanation:

Represent trees with T and wreaths with W

Given

$T = 3 + 4 * W$

$2 * W + T = 99$

Solving (a): Cost of W

Substitute 3 + 4 * W for T in the second equation

$2*W + 3 + 4 * W = 99$

$2W + 3 + 4 W = 99$

Collect Like Terms

$2W + 4 W = 99 - 3$

$6W = 96$

Divide through by 6

$W =\frac{96}{6}$

$W = 16$

Hence, each wreath costs $16

Solving (b): Cost of T

$T = 3 + 4 * W$

Substitute 16 for W

$T = 3 + 4 * 16$

$T = 3 + 64$

$T = 67$

Hence, each tree costs $67

3 0

2 years ago

Hii guys I need help with this I took a screenshot of it.

eduard

Answer:

x <= 9

Step-by-step explanation:

x -15 <= -6

+15. +15

x <=9

8 0

2 years ago

Please help due tomorrow All he help you Got

Lunna [17]

A,b,d,e,f,h would be similar because they are all quadrilaterals (they all have four sides) and c,g would be the same because they are both triangles

3 0

3 years ago

What is the value of x?<br><br> Enter your answer in the box.<br><br> x =

vampirchik [111]

Answer:

26 degrees

Step-by-step explanation:

90-64=26

Hope this helps!

6 0

3 years ago