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3 years ago

Please explain to me EVERYTHING about percentages (7th grade level.) Tell me anything percentage related. Please and thank you !

Mathematics

1 answer:

Salsk061 [2.6K]3 years ago

7 0

What part in percentages are you having trouble with

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Solve for x. 25 - 3x = -5(1 - x) - 2x

grandymaker [24]

Answer:

$x = 5$

Step-by-step explanation:

25 - 3x = -5(1 - x) - 2x

We have to first get rid of the parenthesis:

$-5 * 1$ ==> -5

$-5 * -x$ ==> 5x

So now you should have:

25 - 3x = -5 + 5x - 2x

Combine like terms:

25 - 3x = -5 + 5x - 2x

25 - 3x = -5 + 3x

Add 3x to both sides:

25 - 3x = -5 + 3x

+ 3x = + 3x

And you should have:

25 = -5 + 6x

Add 5 to both sides:

25 = -5 + 6x

+5 = +5

30 = 6x

Divide 6 to both sides:

$\frac{30}{6}$ = $\frac{6x}{6}$

5 = x

3 0

2 years ago

Read 2 more answers

YALL PLEASE HELP I WILL MARK YOU AS BRAINLEST

Dahasolnce [82]

Step-by-step explanation:

But you can search on other applications

Can U tell me U are in which std

3 0

3 years ago

The surface area of a right square pyramid is given by A=b2+2bh where b is the length of a side of the base and h is the slant h

gizmo_the_mogwai [7]

Answer:

$h = \dfrac{A - 9}{6}$

Step-by-step explanation:

A=b^2+2bh

b = 3

A = 3^2 + 2(3)h

A = 9 + 6h

6h = A - 9

$h = \dfrac{A - 9}{6}$

4 0

3 years ago

What is (6-6)+7x7+4= ?

laiz [17]

<h2>Anser</h2>

Step-by-step explanation:

(6-6)+7×7+4

=0+7×7+4

=7×7+4

=49+4

=53

8 0

3 years ago

Read 2 more answers

What’s the answer to the problem

Maru [420]

Isolate the variable by dividing each side by factors that don't contain the variable.
Exact Form:
m
=
√
130
10
,
−
√
130
10
m
=
130
10
,
-
130
10
Decimal Form:
m
=
1.14017542
…
,
−
1.14017542
…

7 0

3 years ago