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3 years ago

What value of x satisfies the equation below? Explain how you know -3x = 15

Mathematics

2 answers:

RoseWind [281]3 years ago

6 0

Answer:

x = -5

Step-by-step explanation:

lisov135 [29]3 years ago

5 0

-3x = 15
————
-3. -3

x= -5

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Help asap I will give u huge amount of brainly points

Minchanka [31]

Answer:

$\boxed{\sf -\dfrac{5}{8}}$

Use BODMAS rule,

where:

brackets
order
division
multiplication
addition
subtraction

Given expression:

$\rightarrow \sf -\dfrac{1}{5} \times [\:4-14\times\left(\dfrac{1}{4} \right)^2]$

simplify exponent

$\rightarrow \sf -\dfrac{1}{5} \times [\:4-14\times\left(\dfrac{1}{16} \right)]$

$\rightarrow \sf -\dfrac{1}{5} \times [\:4-\(\dfrac{14}{16}]$

$\rightarrow \sf -\dfrac{1}{5} \times [\:4-\(\dfrac{7}{8}]$

$\rightarrow \sf -\dfrac{1}{5} \times [\:\dfrac{32}{8} -\(\dfrac{7}{8}]$

$\rightarrow \sf -\dfrac{1}{5} \times [\:\dfrac{25}{8}]$

multiply fractions

$\rightarrow \sf -\dfrac{25}{40}$

$\rightarrow \sf -\dfrac{5}{8}$

8 0

1 year ago

Read 2 more answers

She decides to change the length of the top of the top of the trapezoid shaped garden from 32 to 24 ft. Which expression finds t

gulaghasi [49]

Answer:

<h3>The change in the scale factor is $\frac{3}{4}$ ft</h3>

Step-by-step explanation:

Given that Sienna planned a trapezoid-shaped garden.

And She decides to change the length of the top of the trapezoid-shaped garden from 32 ft to 24 ft.

Let Old length of the top be 32 ft

Let New length of the top be 24 ft

$Scale factor =\frac{New length}{old length}$

$Scale factor = \frac{24}{32}$

$=\frac{3}{4}$ ft

<h3>∴ the change in the scale factor is $\frac{3}{4}$ ft</h3>

7 0

4 years ago

In circle A, measure of arc CFE is 240°.

yKpoI14uk [10]

The answer is 120°. Hope it helps.

8 0

3 years ago

Solve the system by graphing. 3x+8y=16 3x+8y=-64

Gnesinka [82]

-3x-y=10

4x-4y=8

or

y = -3x - 10

P(0,-10) and P(-2, -4) on this line: Plot and connect with the Line.

y = x - 2

P(0, -2) and (2,0) on this line: Plot and connect with the Line.

P(-2,-4) is the ordered pair that is the solution for this system of EQs

On may CHECK by substituting x= -2 and y = -4 into the EQs of these Lines

Hope this helps!!!

7 0

3 years ago

4/25 of the purchases were stuffed animals. 10/21 of them were bears. What fraction of the purchases were stuffed bears?

Bess [88]

Let's name all the purchases "x"

so $\frac{4}{25}$ of them were stuffed animals, and out of that $\frac{10}{21}$ were bears.

to get the results we have to multiply the fraction of bears by the fraction of the stuff animals:

$\frac{4}{25}*\frac{10}{21}$ .

and now we simplify:
$\frac{4*2}{5*21}$ = $\frac{8}{105}$

and this is the answer!

4 0

3 years ago