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Nonamiya [84]
2 years ago
9

Calculate: 20+ 3 (5 – 1)

Mathematics
2 answers:
Natasha2012 [34]2 years ago
8 0

Answer:

23,4

Step-by-step explanation:

yanalaym [24]2 years ago
5 0

Answer:

32

Step-by-step explanation:

20 + 3(5 - 1)

20 + 15 - 3

35 - 3

32

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How many 2.5 inch by 6 inch tiles will fit on a back splash that is 2.5 feet tall and 8 feet long
alina1380 [7]
First, you would multiply 2.5 by 8, getting 20, to find the area. Then, multiply 20 by 12 to convert it into inches, getting 240 inches squared as the area. Then, multiply 2.5 by 6, getting 15, to find the area of each tile. Finally, divide 240 by 15, getting 16, to find the number of tiles needed.

7 0
3 years ago
Solve the quadratic equation. Simplify if possible:<br><br> -5 (x + 3) 2 = -80
ZanzabumX [31]

Answer:

Step-by-step explanation:

(x +y)² = x² + 2xy +y²

-5(x + 3)² = -80

-5(x² + 2*x*3 + 3²) = -80          

-5(x² + 6x + 9) = -80

Divide the equation by (-5)

x² + 6x +9 = -80/-5

x² + 6x + 9 = 16

x² + 6x + 9 - 16 = 0

x² + 6x  - 7 = 0

x² - x + 7x - 7 = 0

x(x - 1)  + 7(x - 1) = 0

(x - 1)(x + 7) = 0

x -1 = 0   ; x + 7 = 0

x = 1     ; x = -7

3 0
2 years ago
How do I find a slope of a line?
joja [24]

Answer:The slope of a line characterizes the direction of a line. To find the slope, you divide the difference of the y-coordinates of 2 points on a line by the difference of the x-coordinates of those same 2 points .

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Which of the following companies offers the greatest total employment compensation? Company A Gross pay $38,200 Insurance $3,500
spayn [35]

Answer:

Company C offers the greatest total employment compensation.

Step-by-step explanation:

Now we calculate the greatest total employment compensation as follows:

Company A :

Gross pay -      $38,200

Insurance -       $3,500

Paid time off -  $4,100

Total compensation = 38,200 + 3,500 + 4,100 = $45,800

Company B :

Gross pay -                         $39,000

Total employee benefit -   20% of 39,000 (0.20 × 3900) = $7,800

Job expenses -                  $700

Total compensation =  39,000 + 7,800 + 700 = $47,500

Company C :

Gross pay -     $39,900

Insurance -      $3,200

paid time off -  $3,900

Job expenses- $1,000

Total compensation = 39,900 + 3,200 + 3,900 + 1,000 = $48,000

Company D:

Gross pay - $39,400

total employee benefits - 18% of 39,400 (0.18 × 39,400) = $7,092

Total compensation = 39,400 + 7,092 = $46,492

Therefore company c offers the greatest total employment compensation.

3 0
3 years ago
Read 2 more answers
Round 249798.828806 to the nearest ten.
Artyom0805 [142]
249798.8

The nearest ten
5 0
2 years ago
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