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Maru [420]
3 years ago
13

Shau-uen solved the equation 18.5 w + 6.5 w minus 2.8 w = 149.1. Her work is shown below.Step 118.5 w + 6.5 w minus 2.8 w = 149.

10Step 225 w minus 2.8 w = 149.1Step 3 Negative 2.8 w = 5.964Step 4w = negative 2.13In which step did Shau-uen make her first error? PLZ HELP FAST
Mathematics
2 answers:
finlep [7]3 years ago
6 0

First step.Addition error

Step-by-step explanation:

Given the equation as;

18.5 w + 6.5 w - 2.8 w = 149.1 add like terms

22.2w=149.1

22.2w/22.2=149.1/22.2

w=6.72

Learn More

Addition in decimals:brainly.com/question/9148823

Keywords: equation, error

#LearnwithBrainly

madam [21]3 years ago
6 0

Answer:

addition error

Step-by-step explanation:

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The perimeter of a rectangle is 22 inches. Find the dimensions if its length is 3 inches greater than its width.
MaRussiya [10]

Answer:

Length: 7

Width: 4

Step-by-step explanation:

We can create a system of equations for this problem, where w is the width and l is the length.

The perimeter of a rectangle is twice its length added to twice its width.

2l+2w=22

The length is 3 more than the width:

l = w+3

We can now substitute in w+3 as l in the equation 2l+2w=22.

2(w+3) + 2w = 22

Distribute the first terms:

2w+6+2w=22

Combine like terms:

4w+6=22

Subtract 6 from both sides:

4w=16

Divide both sides by 4:

w = 4

Now we know that w = 4. We can now substitute this inside an equation to find l.

l = w+3\\\\l = 4+3\\\\l=7

Hope this helped!

7 0
4 years ago
Learning
andrezito [222]

Answer:

13

Step-by-step explanation:

6 0
3 years ago
Pentagon DEFGH is translated 4 units to the right to create pentagon UVXYZ. DE is 5cm long. What is the length of UV?
Semmy [17]
If a shape is translated (has it's vertex' coordinates moved/changed), then it retains its original values but just has different vertex coordinates.

Thus since DE is equal to UV, then,

DE = UV; substitution:
5=5
3 0
3 years ago
Write 1.4455 x 10^3 in standard form
liberstina [14]

Answer:

you multiply 1.4455 x 10 x 10 x 10 or easily because you are multiplying the decimal moves as many powers of ten to the right..

1.4455  start with

14.455

144.55

1445.5 is answer

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Solve the following equation for x.<br><br> 12x^2-36x=0
OlgaM077 [116]

\qquad\qquad\huge\underline{{\sf Answer}}♨

Let's solve for x ~

\qquad \sf  \dashrightarrow \:12 {x}^{2}  - 36x = 0

\qquad \sf  \dashrightarrow \:12 x({x}^{}  - 3) = 0

\qquad \sf  \dashrightarrow \:12x = 0 \:  \: or \:  \: x - 3 = 0

\qquad \sf  \dashrightarrow \:x = 0 \:  \: or \:  \: x = 3

Therefore, the possible values of x are 0 and 3

6 0
3 years ago
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