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nikdorinn [45]
3 years ago
13

Helpppp with question 8

Mathematics
1 answer:
koban [17]3 years ago
3 0

Answer:

y - 8

Step-by-step explanation:

She is 8 years younger so you'd subtract eight from her sister's age.

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oksano4ka [1.4K]
Yes it has 2 sets of parallel lines.
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The carpet Danil has chosen for his new recreation room costs $8.99 per square metre. this room measures 15ft by 18ft. how much
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Answer:

$225.50 (nearest cent)

Step-by-step explanation:

1 foot ≈ 0.3048 m

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Select the correct answer. Leeann works 20 hours per week and makes $15 per hour. What is her yearly pay? A. $10,100 B. $12,500
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Step-by-step explanation:

6 0
3 years ago
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The length of rectangular sign is 12 less than twice the width. Its perimeter is 114 ft. Find the length and the width of the si
Ymorist [56]

We have two relations between length and width. One is given in the problem statement. The other is given by the formula for perimeter. We can solve the two equations in two unknowns using substitution.

Let w and l represent the width and length of the sign in feet, respectively.

... l = 2w -12 . . . . . the length is 12 ft less than twice the width

... p = 2(l +w) = 114 . . . . the perimeter is 114 ft

Using the first equation for l, we can substitute for l in the second equation.

... 114 = 2((2w -12) +w)

... 114 = 6w -24 . . . . . . . . simpify

... 138 = 6w . . . . . . . . . . . add 24

... 23 = w . . . . . . . . . . . . . divide by 6

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The length and width of the sign are 34 ft and 23 ft, respectively.

7 0
3 years ago
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3 to the power of 12

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first add the exponents 3 and 6

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3^12

7 0
2 years ago
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