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3 years ago

Please show workings Plssssssssss

Mathematics

1 answer:

Luda [366]3 years ago

5 0

Answer:

The length of XY is 11.

Step-by-step explanation:

since the triangles are congruent to one another,

(4x-7)=(2x-3)

move the like terms to the other side

4x-2x=-3+7

2x=4

x=4

then subsitute x into the equation

2(4)+3

= 11

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How do i solve -3=-2x+1 by graphing?

KonstantinChe [14]

Answer:

x = 2

Step-by-step explanation:

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3 years ago

A travelers ground speed is 2 feet per second against the walkway and 8 feet per second with the walkway, what is the travelers

creativ13 [48]

Answer:

The traveller's speed is 5ft/s and the walkway speed is 3ft/s

Step-by-step explanation:

Given

Represent the traveller's speed with T and the walkway's speed with W.

When the traveller walk against the walkway, we have:

$T - W = 2$ ---- i.e. 2ft/s against the walkway

When the traveller walk with the walkway, we have:

$T + W = 8$ ---- i.e. 8ft/s with the walkway

Required

Solve for W and T

$T - W = 2$ --- (i)

$T + W = 8$ --- (ii)

Add (i) and (ii)

$T + T - W + W = 2 + 8$

$T + T = 2 + 8$

$2T = 10$

Divide both sides by 2

$\frac{2T}{2} = \frac{10}{2}$

$T = \frac{10}{2}$

$T = 5$

Substitute 5 for T in (ii)

$T + W = 8$

$5 + W = 8$

Make W the subject

$W = 8 - 5$

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7 0

3 years ago

2 to the power of 4 - 3+2x5

Mnenie [13.5K]

Answer:

121

Step-by-step explanation:

(4 - 3+2·5)²

Multiply

(4-3+10)²

Now add and subtract

(1+10)²

11²

121

6 0

3 years ago