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iogann1982 [59]
3 years ago
9

I need help!!! :))))

Mathematics
2 answers:
timurjin [86]3 years ago
6 0

Answer:

c

Step-by-step explanation:

aleksandr82 [10.1K]3 years ago
3 0

Answer:

420-20w = 240

Step-by-step explanation:

She starts with $420 and is taking out $20 a week so in the equation the 20 has to be negative because she is withdrawing instead of adding.

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The formula P=0.6x-89 models the profit, P, in dollars, for a shoe shiner when he shines x pairs of shoes.Use the formula to fin
yanalaym [24]

Answer:

do you still need help

Step-by-step explanation:

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2 years ago
When evaluating (6.28 x 10^12) over (3.14x10 ^ 4), what will be the exponent of 10 in the quotient?
SIZIF [17.4K]
When ur dividing with exponents, u subtract the exponents

10^12 / 10^4 = 10^(12 - 4) = 10^8 <== ur exponent is 8
3 0
2 years ago
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The perimeter of a triangle is 64cm ,the sides are the ratio 6:5:5 , work out the area of the triangle
Fofino [41]
The area is 192 cm^2

the sides are 20 20 24 with the base being 24

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4 0
3 years ago
Write the Equation of the line that is parralel to the linear equation in question 1 and passes through the point (3,7)
BlackZzzverrR [31]
Where’s question 1? And the question
4 0
2 years ago
Only questions 10-12!! Help please!!
butalik [34]

Answer:

Step-by-step explanation:

10) The opposite sides of a parallelogram are equal. It means that

a + 15 = 3a + 11

3a - a = 15 - 11

2a = 4

a = 4/2 = 2

Also,

3b + 5 = b + 11

3b - b = 11 - 5

2b = 4

b = 4/2 = 2

11) The opposite angles of a parallelogram are congruent and the adjacent angles are supplementary. This means that

2x + 11 + x - 5 = 180

3x + 6 = 180

3x = 180 - 6 = 174

x = 174/3 = 58

Therefore,

2x + 11 = 2×58 + 11 = 127 degrees

The opposite angles of a parallelogram are congruent, therefore,

2y = 127

y = 127/2 = 63.5

12) The diagonals of a parallelogram bisect each other. This means that each diagonal is divided equally at the midpoint. Therefore

3y - 5 = y + 5

3y - y = 5 + 5

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Also,

z + 9 = 2z + 7

2z - z = 9 - 7

z = 2

3 0
3 years ago
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