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3 years ago

How do I solve this complex multi-step equation 2x + (-2 )= 10x - 4 ?

2 answers:

8 0

All you have to remember is this. Reverse the operation. For example on this problem there is a -2 right? So reverse the operation and (REMEMBER:Always do what you did on one side to the other side) then you would have +2 on both sides. You do the same for variables and all of the numbers and result with 8x=2, so divide by 8 and get x=1/4

77julia77 [94]3 years ago

8 0

2x-2=10x-4
-8x=-2
x=1/4

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A rectangular garden that is 167 feet wide and 11 feet long will be covered with

steposvetlana [31]

Answer:

the answer is 92 bags.

167x11=1837

1837÷20=91.85....or 92 bags

6 0

2 years ago

7 years ago father was 7 times as old as his son was. three years hence, he will be three times as old as his son find their pre

EastWind [94]

Answer:

son = 10 , father = 40

Step-by-step explanation:

Let Five years ago the age of son be x years and age of father be 7x years

Present age of son =x+5

Present age of father =7x+5

5 years later their age will (x+10) and (7x+10)

∴7x+10=3(x+10)

7x−3x=20

4x=20

x=5

So, the present age of son=x+5=5+5=10years

and the present age of father=7x+5=35+5=40years

hope it helps you

8 0

2 years ago

The checkbook balance of Sunfresh, Inc. is $6,917.63. The bank statement shows a balance of $8,737.35. The bank statement showed

balandron [24]

The answer is d $10,748.68

6 0

3 years ago

Read 2 more answers

The student council had six fund raisers during the school year. They raised $212, $205, $206, $190, $188, and $195. Using the c

Rus_ich [418]

Answer:

$1200

Step-by-step explanation:

The clustering method for estimation is a method used for estimating the sums and products of numbers. This method is used when the numbers that are to be multiplied or added are near in value to a single number.

Given the money raised by six fund raisers:

$212, $205, $206, $190, $188, and $195

The numbers are to be added to find the total money raised. i.e.:

$212 + $205 + $206 + $190 + $188 + $195

But all the numbers are close to $200. Hence:

Using clustering method = $200 + $200 + $200 + $200 + $200 + $200 = 6 * $200 = $1200

4 0

2 years ago

Help me with this problem please a and b

nadya68 [22]

(a) Compare your quadratic for h to the general quadratic ax² +bx +c. Perhaps you can see that ...
a = -16
b = 128
You use these numbers in the given formula to find the time when the ball is highest.
t = -b/(2a) = -128/(2(-16)) = 4 . . . . . . the time at which the ball is highest

(b) Evaluate the quadratic to find the height at t=4.
h = -16(4)² +128(4) +21
h = -256 +512 +21
h = 277
The maximum height of the ball is 277 ft.

5 0

3 years ago