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photoshop1234 [79]
3 years ago
12

Sam has $40. He buys a book for $12.99 and a puzzle for $15.49.

Mathematics
2 answers:
sveta [45]3 years ago
7 0

40 = 12.99 + 15.49 + x

Total 40, 12.99 and 15.49 is how much he has spent, and x is the variable to be solved for

If this helped pls mark branliest.

WINSTONCH [101]3 years ago
5 0

Answer:

40-12.99-15.49=11.52

40-(15.49+12.99)=11.52

Step-by-step explanation:

There are two ways you can complete this you can just keep subtracting or you can add the two number that you need to subtract and then subtract them.

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Pleaseeeeeeee help 32 points
zlopas [31]

Find out the length of each side. For the slanty sides, you can do this by using the formula

d = \sqrt{(y2-y1)^{2} +(x2-x1)^{2} }

For the straight sides (like the one on the bottom and the one on the left), just use simple subtraction.

Add up all 4 sides and you get the perimeter. You should get 20, 15, 5\sqrt{5} and 5\sqrt{26}.  The total is 35 +  5(\sqrt{26} +\sqrt{5} ).

8 0
3 years ago
Which expression is equivalent to 24x2 - 22x + 5?​
enot [183]

Answer:

C

Step-by-step explanation:

Given

24x² - 22x + 5

Consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term.

product = 24 × 5 = 120 and sum = - 22

The factors are - 12 and - 10

Use these factors to split the x- term

24x² - 12x - 10x + 5 ( factor the first/second and third/fourth terms )

= 12x(2x - 1) + 5(2x - 1)  ← factor out (2x - 1) from each term

= (12x - 5)(2x - 1) ← in factored form → C

4 0
3 years ago
3) Original price of a tie: $29.50<br> Discount: 50%<br> Tax: 5%
Reptile [31]

Answer:

$15.49

Step-by-step explanation:

29.50*.50=14.75

14.75*.05=.74

14.75+.74=15.49

8 0
3 years ago
15 = -3(2c + d) (Solve for c)​
Paha777 [63]

Answer:

(15+3d)/6 = c

2 1/2 + 1/2d = c     (more simplified)

Step-by-step explanation:

15 = -3(2c +d)

15 = -6c -3d

+3d       +3d

15 +3d = -6c

/-6          /-6

(15+3d)/6 = c

2 1/2 + 1/2d = c

7 0
3 years ago
Consider 8x2 - 48x = -104. Write the equation so that a = 1: x^2 + __x =__
Ymorist [56]

Answer:

x² -6x = -13

Step-by-step explanation:

Divide the equation by 8, the current value of "a".

... (8x² -48x)/8 = -104/8

... x² -6x = -13

8 0
3 years ago
Read 2 more answers
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