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lara31 [8.8K]
3 years ago
10

Which property is represented? 7(t + U) = 7t + 70

Mathematics
1 answer:
Nikitich [7]3 years ago
3 0

Answer:

t=-7u+70/0

Step-by-step explanation:

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15+x<24 what is the solution to this inequality
ra1l [238]
Move all terms not containing x to the right side of the inequality. x < 9

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How many solutions does the equation 4y − 4y − 12 = 14 − 2 have?
Thepotemich [5.8K]

Answer:

NONE

Step-by-step explanation:

4Y-4Y-12=14-2

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7 0
3 years ago
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The owner of a candy store wants to mix some peanuts worth $3 per pound, some cashews worth $10 per pound, and some Brazil nuts
elena-14-01-66 [18.8K]
Let
x = pounds of peanuts
y = pounds of cashews
z = pounds of Brazil nuts.

The total pounds is 50, therefore
x + y + z = 50                   (1)

The total cost is $6.60 per pound for 50 pounds of mixture.
The total is equal to the sum of the costs of the different nuts.
Because the cost for peanuts, cashews, and Brazil nuts are $3, $10, and $9 respectively, therefore
3x + 10y + 9z = 50*6.8
3x + 10y + 9z = 340         (2)

There are 10 fewer pounds of cashews than peanuts, therefore
x = y + 10                         (3)

Substitute (3) into (1) and (2).
y + 10 + y + z = 50
2y + z = 40                     (4)
3(y + 10) + 10y + 9z = 340
13y + 9z = 310                (5)

From (4),
z = 40 - 2y          (6)
Substitute (6) into (5).
13y + 9(40 - 2y) = 310
-5y = -50
y = 10
z = 40 - 2y = 40 - 20 = 20
x = y + 10 = 20

Answer:
Peanuts:     20 pounds
Cashews:   10 pounds
Brazil nuts: 20 pounds


8 0
3 years ago
Is the exponent of a number without a written exponent 1 or 0?
Temka [501]

Answer:

1

Step-by-step explanation:

4 0
3 years ago
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a class has a ratio of boys to girls of 3/4 each for each statement below decide whether it is the fraction of boys in the class
Yanka [14]

Answer:

Step-by-step explanation:

Ratio of boys to girls = 3:4

Total ratio = 7

Fraction for boys = 3/7

5 0
3 years ago
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