All categories

3 years ago

13x+15=11x-25 5t-5=5t+7 Please show steps for both Thank you

Mathematics

1 answer:

Tanzania [10]3 years ago

3 0

I hope this helps you

13x-11x=-25-15

2x=-40

x=-20

5t-5t=7+5

0=12 false

You might be interested in

The base of a triangle exceeds the height by 7 centimeters. If the area is 400 square centimeters, find the length of the base a

zvonat [6]

Answer:

Base = 32 cm

Height = 25 cm

Step-by-step explanation:

Area of a triangle can be calculated as:

$Area = \frac{1}{2}\times Base \times Height$

We are given that the base of triangle exceeds the height by 7 cm. This can be expressed in an equation form as:

Base = Height + 7

Lets use B to represent base and H to represent height

B = H + 7

The equation of area can be stated as:

$Area=\frac{1}{2}bh\\\\ Area=\frac{1}{2}(h+7)(h)\\\\ 400=\frac{1}{2}h(h+7)\\\\ 800=h^{2}+7h\\\\ h^{2}+7h-800=0$

This is a quadratic equation which can be solved using a quadratic equation as shown below:

$h=\frac{-7+-\sqrt{49-4(1)(-800)} }{2(1)} \\\\ h=\frac{-7+-57}{2}\\\\h=-32,25$

Since the height cannot be negative, we'll consider the positive value only i.e height is equal to 25 cm.

Therefore, the length of base will be 25 + 7 = 32 cm.

8 0

4 years ago

6 ten thousands mutilply 10 = what

Oksana_A [137]

Answer:

I believe the answer is six-hundred thousand (600000). That's if I read your question right. I'm not sure what you were asking exactly.

Step-by-step explanation:

6 (10000 x 10)

6 (100000)

600000

3 0

3 years ago

Express the form n:1 give n as a decimal 14:8

Alexus [3.1K]

I’m pretty sure it’s 1. 8:1

6 0

3 years ago

Divide. Reduce the answer to lowest terms.

Anastasy [175]

I don’t get the question

4 0

3 years ago

What is the y intercept of the functionsl f(x)=-2/9+1/3

Wittaler [7]

The y-intercept is 1/3 or (0, 1/3)

hope this helped !!

7 0

3 years ago