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alukav5142 [94]
2 years ago
10

50+30x=250+10x Help!!!!!

Mathematics
1 answer:
kow [346]2 years ago
3 0

Answer:

x = 10

General Formulas and Concepts:

Order of Operations: BPEMDAS

Step-by-step explanation:

<u>Step 1: Define equation</u>

50 + 30x = 250 + 10x

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Subtract 10x on both sides:                         50 + 20x = 250
  2. Subtract 50 on both sides:                          20x = 200
  3. Divide both sides by 20:                              x = 10

<u>Step 3: Check</u>

<em>Plug in x to verify it's a solution.</em>

  1. Substitute:                         50 + 30(10) = 250 + 10(10)
  2. Multiply:                             50 + 300 = 250 + 100
  3. Add:                                    350 = 350
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Winter coats are marked 70% off on February 1st. If a coat costs 57.75 on January 31st, how much will it cost on February 1st.
satela [25.4K]

Answer:

So Price after discount would be 17.5 on February 1st

Step-by-step explanation:

Given:

Original Cost  =57.75

Off Price = 70%

To Find:

Price after discount = ?

Solution:

We have to find the price after discount which is given by the formula

Price after Discount = Original Cost - Discount Price

We have to find the value of discount price

Discount Price = off Price * Original Cost

Putting in the values

Discount Price = 70 % * 57.75

it becomes

Discount Price =\frac{70*57.75}{100}

It becomes

                         =\frac{4025}{100}

                                = 40.25

Now

Price after Discount = Original Cost - Discount Price

Putting in the values

it becomes

Price after Discount = 57.75-40.25

                                   = 17.5

So Price after discount would be 17.5 on February 1st


3 0
3 years ago
Read 2 more answers
A pencil decreases in size by 1/12 millimeters per day. The total change in size of the pencil is -7/9 millimeters. How many day
AlekseyPX

9  1/3 days

Step-by-step explanation:

  • If the total change in the size of the pencil is -7/9 millimeters. Then the actual change itself is 7/9 which is a positive value.
  • If each day the pencil changes by 1/12 millimeters, how many 1/12 millimeters are there in 7/9 millimeters. This is a division query;

7/9  ÷ 1/12 = 7/9 * 12/1 = 28/3

= 9 & 1/3 days

Learn More:

For more on fractions check out;

brainly.com/question/1878884

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The length of a rectangle is 8 inches more than the width. the perimeter is 44 inches. find the length and width of the rectangl
vazorg [7]

Answer: Width is 7 inches, length is 15 inches.

Step-by-step explanation:

Let the width be w. Then, the length is w+8.

2(w+w+8)=44\\\\w+w+8=22\\\\2w+8=22\\\\2w=14\\\\w=7\\\\\implies l=15

8 0
2 years ago
Mathematics please help...​
galben [10]

Answer:

the answer is B

Step-by-step explanation:

area of the minor arc is teter all over 360 times 2 pie r square.

that is

\frac{?}{360}  \times 2\pi {r}^{2}

= but because the question said for length AB, youvhave to use only one radius.

\frac{160}{360}  \times 2 \times  \pi \times 9

You the use 40 to cancel 160 and 360 to get 4 all over 9 times 2 pie times 9.

\frac{4}{9}  \times 2 \times \pi \times 9

You then cancel 9 with 9 to get 4 times 2 times pie

4 \times 2 \times \pi

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8\pi

3 0
2 years ago
50 pounds to 35 pounds percentage of change
iVinArrow [24]

Answer:

30%

Step-by-step explanation:

<h2><u>Percentage change </u></h2><h3>formula :</h3>

\frac{change}{origional} * 100

= 50 - 35 = 15

= \frac{15}{50}*100\\

<h3>= 30 %</h3>
4 0
3 years ago
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