Ask question

Ask question

All categories

3 years ago

6

In the equation minus m over 20 +4=7 what is first step to solve

1 answer:

miv72 [106K]3 years ago

7 0

Simple....

we have:

$\frac{-m}{20}$ +4=7

We must first isolate what we want to find...or m......

So...we must..

$\frac{-m}{20} +4=7$
-4 -4

Leaving you with...

$\frac{-m}{20} =3$

Thus, your answer isolate the variable. (Subtract 4 from both sides.)

You might be interested in

Simplify the expression. Write answer using only positive exponents.<br><br><br> (1/3a^3)^-4

Artemon [7]

Answer:

81/a^12

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

What is the answer to this question?

AfilCa [17]

The answer should be B.

4 0

3 years ago

The sides of △FGH are FG = 6 x+ 7, GH = 8x - 5, and FH = 10x - 11. If the perimeter of △FGH is 87, list the angles in order from

irga5000 [103]

Answer:

From largest to smallest: FG, FH, GH

Step-by-step explanation:

Given

$FG = 6x + 7$

$GH = 8x - 5$

$FH = 10x - 11$

$Perimeter = 87$

Required

Order the sides in descending order

First, we need to solve for x.

Perimeter of FGH is calculated as thus:

$Perimeter = FG + GH + FH$

Substitute values for FG, GH, FH and Perimeter

$87 = 6x + 7 + 8x - 5 + 10x - 11$

Collect Like Terms

$87 - 7 + 5 + 11= 6x + 8x + 10x$

$96= 24x$

Reorder

$24x = 96$

Divide through by 24

$x = 96/24$

$x = 4$

Substitute 4 for x in FG, GH and FH

$FG = 6x + 7$

$FG = 6 * 4 + 7$

$FG = 24 + 7$

$FG =31$

$GH = 8x - 5$

$GH = 8 * 4 - 5$

$GH = 32 - 5$

$GH = 27$

$FH = 10x - 11$

$FH = 10*4 - 11$

$FH = 40 - 11$

$FH = 29$

In order of arrangement in descending order, we have:

$FG =31$ $FH = 29$ $GH = 27$

4 0

2 years ago

Bring the fraction a/a−4 to a denominator of 16−a^2<br><br> really do appreciate this thx

RSB [31]

Answer:

-a(a+4)/(16 - a²)

Step-by-step explanation:

a/(a - 4) Multiply by (a + 4)/(a + 4)

= a(a + 4)/[(a – 4)(a + 4)] Multiply the denominatorator terms

= a(a + 4)/(a² - 16) Multiply by -1/(-1)

= -a(a+4)/(-a² + 16) Reorder terms in denominator

= -a(a+4)/(16 - a²)

5 0

3 years ago

Use 4's and any of the operations: +, -, × and ÷ to write number sentences.

Furkat [3]

Answer:

Step-by-step explanation:

(4x4)÷(4+4) = 2

(4x4)÷ (4 +4) - 4= 4

(4+4)+(4÷ 4)- 4= 5

(4+4)- (4÷4) - 4= 3

8 0

3 years ago

Read 2 more answers