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loris [4]
3 years ago
6

What’s the answer??????? Pleaseeeeeeee helppppppppppp

Mathematics
2 answers:
Vinvika [58]3 years ago
5 0

Hello from MrBillDoesMath!

Answer:

Choice A,   18x - 6y = 20


Discussion:

Given line  

-9x + 3y = 12     (M)


Choice A:

18x - 6y = 20  =>          divide both sides by -2

-9x + 3y = -10     (N)


The left hand sides of (M) and (N) are equal implying that right hand sides are equal which further implies 12 = -10.  Contradiction! so the system M and N has no solution.


Thank you,

MrB

Svetlanka [38]3 years ago
4 0
The answer is a!!!!!!!!!!
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30 yd wide and 50 yd long find the length of the diagonal
Troyanec [42]
It's the same as finding the hypothenuse of a right triangle. Let c be the hypothenuse.

30 squared+ 50 squared= c squared.

900+ 2500= c squared
3400= c squared

Then find the square root of 3400 and that will equal c.

So, depending in what form the teacher was the answer. The answer will be square root of 3400 ft squared or 58.3 ft squared.
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3 years ago
What is the slope of the line that passes through (5,7) and (-10,-5)
Nat2105 [25]

Answer:

4/5

Step-by-step explanation:

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3 years ago
Which expression represents the combined area of the garden in square feet?
KATRIN_1 [288]
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8 0
3 years ago
The ratio table shows the costs for different amounts of bird seed. Find the unit rate in dollars per pound.
Maru [420]

Answer:

2.3 dollars

Step-by-step explanation:

Given:

Ratio table that shows the costs for different amounts of bird seed

To find: the unit rate in dollars per pound

Solution:

Amount (pounds)   5       10      15        20

Cost (dollars)         11.5   23    34.50    46

Here,

\frac{5}{11.5}=\frac{50}{115}=\frac{10}{23}\\\\\frac{10}{23}=\frac{10}{23}\\\\\frac{15}{34.50}=\frac{1500}{3450}=\frac{150}{345}=\frac{30}{69}=\frac{10}{23}\\\\\frac{20}{46}=\frac{10}{23}

Therefore,

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6 0
3 years ago
10 points!
Goryan [66]

Answer:

30 feet

Step-by-step explanation:

A ratio of 4:3 means that if one part can be represented by x, the original height is equal to 4 * x and the mural height is equal to 3 * x. This is because the ratio of original : mural is 4 : 3, so if one part = x, we have 4 * x : 3 * x. Therefore,

original mast height = 40 feet

4 * x = original mast height = 40 feet

divide both sides by 4 to get x

x = 10 feet

3 * x = mural mast height = 3 * 10 feet = 30 feet

4 0
2 years ago
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