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4 years ago

Which equation is true for x = 5? A) 2x + 5 = 25 Eliminate B) 3x + 5 = 17 C) 5x − 18 = 7 D) 6x − 10 = 26

Mathematics

2 answers:

amm18124 years ago

8 0

Answer:

It is C) 5x-18=7

Step-by-step explanation:

Plug in 5 for x.

5x - 18 = 7

5(5) - 18 = 7

Simplify. First, multiply, then subtract.

25 - 18 = 7

7 = 7 (True)

xxTIMURxx [149]4 years ago

7 0

Answer:

C) 5x - 18 = 7

Step-by-step explanation:

Plug in 5 for x.

5x - 18 = 7

5(5) - 18 = 7

Simplify. First, multiply, then subtract.

25 - 18 = 7

7 = 7 (True)

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Answer:

Whoa! You made a rectangle that's twice as big as the triangle! The area of the rectangle is bh=4\times 5 = 20bh=4×5=20b, h, equals, 4, times, 5, equals, 20 square units, so the area of the triangle is \dfrac 12 by = \dfrac 12 \times 4 \times 5 = 10

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4 years ago

Dose anyone know the answer for these two i need help

Leviafan [203]

Answer:

g=-6, x=-1

Step-by-step explanation:

23=−4g−1

Step 1: Flip the equation.

−4g−1=23

Step 2: Add 1 to both sides

−4g−1+1=23+1

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--------------------------------------------------------------------------------------------------------------

13=−4x+9

Step 1: Flip the equation

−4x+9=13

Step 2: Subtract 9 from both sides

−4x+9−9=13−9

−4x=4

Step 3: Divide both sides by -4

−4x/-4= 4/-4

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3 years ago

Find the value of y and simplify completely

Law Incorporation [45]

Here we have three similar triangles

In similar triangles sides are in proportion

The altitude to the hypotenuse of a right triangle is the mean proportional between the segments into which it divides the hypotenuse.

$\frac{part of hypotenuse }{altitude} =\frac{altitude}{other part of hypotenuse}$

$\frac{16}{y} =\frac{y}{4}$

We cross multiply to solve for y

$y^{2} =64$

Taking root of both sides

y=8

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3 years ago