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allochka39001 [22]
3 years ago
6

Mark purchased a Playstation on sale at a 40%

Mathematics
1 answer:
Roman55 [17]3 years ago
7 0
The amount of the discount was $140.

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the standard addition algorithm below is being used to add three two-digit numbers 4z + 27 + x 5 equals y 14. If x, y, and z eac
Studentka2010 [4]
For the units positions of all numbers we have:
z+7+5=4 \\ z+12=4
From this we can conclude that total sum of these three numbers is 14. Number 1 we carry to next step. So we have:
z+12=14 \\ z=2

For the tens positions of all numbers we have:
4+2+x+1=1 \\ 7+x=1
The extra number 1 on left side comes from the carry from last step. Similar to ones position we know that total sum is 11.
7+x=11 \\ x=4

Now we insert x and z to find out y:
42+27+45=y14 \\ 114=y14 \\ y=1

Now we need to find out the product of these three numbers:
x*y*z=4*1*2=8
3 0
3 years ago
The table below shows the budget for the Smith family.
tiny-mole [99]

Answer:

415 300 213 3400 4500 = 8415

4500 450 415 300 215 3400 = 9280

8828 times 100 divided by 9280 =9 5.1293103448

95.1 percent (simplified)

Step-by-step explanation: income is income rescieved, id.k if income taxes is given to you but taxes is usually taken away from you, college savings, retirement saving and emergency funds are income, and living expenses is for living and you use it on what ever you want. mainly food.

8 0
3 years ago
Read 2 more answers
Write the measurement for "A"
Sindrei [870]

Answer:

The measurement for "A" is 1.5

5 0
3 years ago
Read 2 more answers
In 2013, the Centers for Disease Control and Prevention surveyed 450,000 adults ages 18 and older and found that 79% of them do
belka [17]

Answer:

Percent = 79\%

Step-by-step explanation:

Given

Adults = 450000

Rate = 79\% --- Those that do not get recommended amount of exercise

Required

The percentage that do not get the recommended amount of exercise

From the question, we have 79% to be the percentage of adults that do not get the recommended amount of exercise. This 79% represents the required percentage

Hence:

Percent = 79\%

6 0
3 years ago
Plz I really need help with this problem<br> Find the are of the shaded region
Nat2105 [25]

Answer:

379.69 \:  {ft}^{2}

Step-by-step explanation:

Area of the shaded region = Area of the square with side 25 ft - Area of the semicircle with radius (25/2) = 12.5 ft.

=  {(25)}^{2}  -  \frac{1}{2}  \times \pi \times  {(12.5)}^{2}  \\  \\  = 625 -  \frac{1}{2}  \times 3.14 \times 156.25 \\  \\  = 625 - 245.3125 \\  \\  = 379.6875 \:  {ft}^{2}  \\  \\  = 379.69 \:  {ft}^{2}

8 0
3 years ago
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