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3 years ago

Simplify 3(4x-5y)+2y , thank you kindly

Mathematics

2 answers:

Katen [24]3 years ago

7 0

the answer is 12x-13y use simple simplification

Maru [420]3 years ago

4 0

3(4x - 5y) + 2y

Your first step is to apply the distributive property, like so:

12x - 15y + 2y

Next, combine like-terms.

12x - 13y is the simplified version of the given expression.

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Brian invests £600 into his bank account.

Savatey [412]

Answer:

It will be £2520

Step-by-step explanation:

3.2=
$\frac{16}{5}$
$\frac{16}{5} \times 100 = 320$
320
$320 \times 6 = 1920$
$1920 + 600 = 2520$

7 0

3 years ago

Please help me will be marked brainlist

Sholpan [36]

The answer is 3 days. My work is in the pic in case you need it

7 0

3 years ago

Find the nth term <br> 26,19,12,5,-2<br><br> I will mark brainliest for the best answer :D

lara31 [8.8K]

Answer:

-9

Step-by-step explanation:

you're taking away 7 each time, so -2-7=-9

5 0

3 years ago

Another wooden plank is leaning against an outside wall of a building. The bottom of the plank is 9 ft from the wall. The length

Vladimir [108]

Given:
bottom of the plank or ground is 9 feet from the wall
length of the plant is 41 ft
height of the wall is unknown.

Let us use the Pythagorean theorem.

a² + b² = c²
a² + (9ft)² = (41ft)²
a² + 81 ft² = 1,681 ft²
a² = 1,681 ft² - 81 ft²
a² = 1,600 ft²
√a² = √1,600 ft²
a = 40 ft

The height of the wall is 40 ft.

3 0

4 years ago

<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B2x%7D%20%2B%2012%20%3D%20x%20%2B%208%20" id="TexFormula1" title=" \sqrt{2x} + 12

Helga [31]

First note that $x\ge0$ ; otherwise $\sqrt{2x}$ is undefined as long as we're only looking for real solutions.

We can write

$\sqrt{2x}+12=x+8$
$\sqrt{2x}=x-4$
$2x=(x-4)^2$
$2x=x^2-8x+16$
$x^2-10x+16=0$
$(x-8)(x-2)=0$

$\implies x=8,x=2$

4 0

3 years ago