All categories

2 years ago

7(b+4)=14 find the value of the variable

Mathematics

2 answers:

Tasya [4]2 years ago

4 0

Answer:

b= -2

Step-by-step explanation:

Artist 52 [7]2 years ago

4 0

Answer:

b = -2

Step-by-step explanation:

First, isolate (b + 4) by dividing both sides of this equation by 7. We get:

b + 4 = 2, so that b = -2

You might be interested in

How to do this problem??

lorasvet [3.4K]

We know that the sum of the inner angles of any triangle is 180º

72º + (7x + 3)º + (3x + 5)º = 180º
72º + 7xº + 3º + 3xº + 5º = 180
7xº + 3xº = 180º - 72º - 3º - 5º
10xº = 100º
$x^0 = \frac{100^0}{10^0}$
$x^0 = 10\to\:\boxed{\boxed{x = 10^0}}\end{array}}\qquad\quad\checkmark$

The sum of the external angle (9y + 1)º with inner angle (3x + 5) = 180 °, <span>Replace the measure of "x" found:
</span>
(9y + 1)º + (3x + 5)º = 180º
9yº + 1º + 3xº + 5º = 180º
9yº + 1º + 3.(10)º + 5º = 180º
9yº + 1º + 30º + 5º = 180º
9yº = 180º - 1º - 30º - 5º
9yº = 144º
$y^0 = \frac{144^0}{9^0}$
$y^0 = 16\to\:\boxed{\boxed{y = 16^0}}\end{array}}\qquad\quad\checkmark$

Answer:
<span>The measures of "x" and "y" are respectively: 10º and 16º</span>

6 0

2 years ago

\sqrt{-100}=____+____i

lubasha [3.4K]

Answer: Is this a legitimate question?

Step-by-step explanation:

7 0

2 years ago

I don't get itttt pls helpppp its khan academy

saul85 [17]

Answer:

Opinion 4

Step-by-step explanation:

hope that will help you

7 0

3 years ago

for small changes in temperature, the formula for the expansion of a metal rod under a change in temperature is: g-l=al(t-t), wh

Anuta_ua [19.1K]

Equation giving the length of this rod at temperature is g = 0.000085t + 84.991075 cm.

What is temperature ?

A temperature is a unit used to represent voguishness or coolness on any of a number of scales, including Fahrenheit and Celsius.
According to temperature, heat energy will naturally move from a hotter( body with an advanced temperature) to a colder( body with a lower temperature)( one at a lower temperature).

Given that,

Temperature denoted by T

G - L = aL(t - T)

G = aLt + L(1 - aT)

Slope = aL

Intercept = L(1 - aT)

g = 0.000085t + 84.991075 cm

Learn more about temperature here: brainly.com/question/24746268

#SPJ9

3 0

1 year ago

Tell whether x and y show direct variation. Explain your reasoning. y−x=0

Jlenok [28]

Answer:

yes

Step-by-step explanation:

Direct variation is represented as

y = kx, where k is a constant.

We can rewrite y - x = 0 as

y = x (add x to both sides)

This can be looked at as

y = (1)x , so this is a direct variation relationship where k = 1

7 0

2 years ago