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Alex17521 [72]
3 years ago
5

Evaluate the expression 2(8-4)² - 10 ÷ 2

Mathematics
2 answers:
katovenus [111]3 years ago
6 0
First Distribute.
18-8= 10^2= 100

100-10/2.
Remember the rule of PEMDAS
Division comes before subtraction.
100-5= 95

95 is your final answer
expeople1 [14]3 years ago
3 0
The answer is 27 hope it helps
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A used bookstore sells hardback books and paperback books.A hardback book costs $11, including tax.A paperback book costs $5, in
Ket [755]

Answer:

D.5

Step-by-step explanation:

You can write the following equations from the information given:

y=x+3 (1)

11x+5y=47 (2)

x is the number of hardback books

y is the number of paperback books

You can replace (1) in (2):

11x+5(x+3)=47

11x+5x+15=47

16x=47-15

16x=32

x=32/16

x=2

Then, you can replace the value of x in (1) to find the value of y:

y=2+3

y=5

According to this, the answer is that Jamal bought 5 paperback books.

6 0
4 years ago
What conic section is this 4x^2 +9y^2 =81?
Contact [7]
This follows the base equation of a circle:

(x - h)^2 + (y - k)^2 = r^2

both of the variables are squared, and they're being added--you've got a circle.
3 0
4 years ago
Kyree paid $10 for a pizza he now has $46.how much money did he have before buying the pizza ??
Taya2010 [7]

46 + 10 = 56

<h2>He had <u>$56</u></h2>
5 0
3 years ago
Read 2 more answers
A delivery truck is transporting boxes of two sizes: large and small. The combined weight of a large box and a small box is 70 p
nikklg [1K]
X = large boxes and y = small boxes

x + y = 70.....x = 70 - y
60x + 65y = 4300

60(70 - y) + 65y = 4300
4200 - 60y + 65y = 4300
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y = 100/5
y = 20 <=== the small boxes weigh 20 lbs

x + y = 70
x + 20 = 70
x = 70 - 20
x = 50 <== and the large boxes weigh 50 lbs
5 0
3 years ago
Which expression can be used to convert 30 US dollars into australlian dollars
9966 [12]

Answer:

39

Step-by-step explanation:

30 x 1.30 = 39

1 us Dollar equals 1.30 us dollars

4 0
3 years ago
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