2x=2. Solving this, you get x=1. You then add 2 to 1 because she already has 2 necklaces to get that she can have a total of 3 necklaces.
Answer: 3570$
Step-by-step explanation:
5 x 6 = 30
30 x 119 = 3570
Answer:
<u>L = 12 inches and W = 8 inches</u>
<u>Area = 96 in^2</u>
Step-by-step explanation:
Perimeter(P) = 2(width) + 2(length)
Let W = width and L = length
P = 2W + 2L
L = 2W - 4
Substitute: P = 2W + 2(2W - 4)
P = 6W - 8
P = 40 inches
40 = 6W - 8
6W = 48
W = 8
L = 2W - 4
L = 2(8) - 4
L = 12
<u>L = 12 inches and W = 8 inches</u>
<u>===============================</u>
Check to see if this works:
P = 2W + 2L
P = 2(12) + 2(8)
P = 24 + 16
P = 40 inches <u>YES</u>
<u>========</u>
Area = WxL
Area = (12)*(8)
<u>Area = 96 in^2</u>
Answer:
900
Step-by-step explanation:
perimeter: P = 2w + 2h
P = 2(20) + 2(25)
P = 40 + 50
P = 90
Multiply perimeter by 10:
90 × 10 = 900
This is a tricky question that Reina and Sam are multiplying (84)5 (73)9and their work are (84)5 (73)9 = 84 + 573 + 9 = 89712 Reina's(84)5 (73)9 = 84⋅573⋅9 = 820727 Sam'sActually they are doing or multiplying using exponents.
Reina’s work (8⁴)₅(7³)⁹=8⁴⁺⁵+ 7³⁺⁹= 8⁹ 7¹²This is incorrect because she added exponents instead of multiplying exponents
Sams work (8⁴)⁵ (7³)⁹=8⁴ˣ⁵ 7³ˣ⁹= 8²⁰ 7²⁷This is correct because Sam multiplied exponents correctly
Exponents are multiplied not added.
