3 years ago

Explain how to use a number line to find a decimal equivalent to 1 7/10..

Mathematics

1 answer:

IRISSAK [1]3 years ago

3 0

1 and 7 because the all what equal it selfe

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B. X = 4y + 3 2x - 4y = -10

maxonik [38]

Answer:

$x = - 13 \: \: and \: \: y = - 4$

Step-by-step explanation:

$x = 4y + 3......(1) \\ 2x - 4y = - 10.....(2) \\ \\ \\ x - 4y = 3......(1) \\ 2x - 4y = - 10...(2) \\ - x = 13 \\ x = - 13 \\ from(1) \\ x - 4y = 3 \\ - 13 - 4y = 3 \\ - 4y = 16 \\ y = - 4 \\$

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3 years ago

WILL MARK BRAINLEST!!!!!

Nimfa-mama [501]

247.5 is the answer I hope this will help u bye and god blesses u!

7 0

3 years ago

Suppose that x ∗ is an optimal basic feasible solution, and consider an optimal basis associated with x ∗ . Let B and N be the s

ch4aika [34]

If I’m honest I’d love to help but I’m pretty bad at math so

6 0

4 years ago

Solve algebraically the simultaneous equations X^2 + Y^2 =25 Y-2X = 5

Georgia [21]

Answer:

Therefore the solutions are

$x=0\\and\\ y =5\\\\Or\\\\x=-4\\and\\y=-3$

Step-by-step explanation:

Given:

$x^{2} + y^{2} =25$ .........( 1 )

$y-2x = 5\\y=2x+5$ ................( 2 )

To Find:

x = ?

y = ?

Solution:

Substituting ' y ' in Equation 1 we get

$x^{2}+(2x+5)^{2} =25$

Using identity (A+B)²=A²+2AB+B² we get

$x^{2}+4x^{2}+20x+25=25\\\\5x^{2}+20x=0\\5x(x+4)=0\\5x=0\ or\ x+4=0\\x=0\ or\ x= -4$

Now Substitute x =0 in equation 2 we get

$y=2\times 0+5=5$

Now Substitute x =-4 in equation 2 we get

$y=2\times -4+5=-3$

Therefore the solutions are

$x=0\\and\\ y =5\\\\Or\\\\x=-4\\and\\y=-3$

4 0

4 years ago

A ladder is leaning against a wall. The foot of the ladder is 6.5 feet from the wall . The ladder makes an angle of 74° with the

gayaneshka [121]

Answer:6.25

Step-by-step explanation:

Let the height of the wall be h

Sin 74=h/6.5

h =6.5sin 74

h=6.25

8 0

3 years ago