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andriy [413]
2 years ago
8

Solution or not a solution and because

Mathematics
1 answer:
tamaranim1 [39]2 years ago
5 0

Step-by-step explanation:

X + Y = -3

X + 3x +5 = -3

X=-2

X+Y=-3

Y=-3+2

Y=-1

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Can someone please help me on this question? 30 points
romanna [79]

Answer:

Equation: 3x-20+x=180

4x-20=180

4x=200

x=50

Step-by-step explanation:

5 0
2 years ago
Mitchell works at a concession stand selling hotdogs and cans of soda. A hotdog costs $3.00 and a can of soda costs $1.00. One n
Dimas [21]
If you are asking how many hot dogs and cans of soda are sold, this is how I solved it.

Given:
cost of hot dog $3 
cost of a can of soda $1
total items sold: 350
total sales: $624

let h stand for hot dog and s stand for soda.

h + s = 350

3h + 1s = 624

h = 350 - s
3(350-s) + s = 624
1,050 -3s + s = 624
-2s = 624 - 1050
-2s = -426
-2s/-2 = -426/-2
s = 213   cans of soda

h = 350 - s
h = 350 - 213
h = 137 hot dogs

3h + s = 624
3(137) + 213 = 624
411 + 213 = 624
624 = 624

Mitchell sold 137 hot dogs and 213 cans of soda.
8 0
2 years ago
What is x? Super confused
Over [174]

Answer:

\\ from \: triangle \: applying \: pyth \\ \sqrt{ {3}^{2}  +  {3}^{2} }  = 3 \sqrt{2}  \\ from \: rectangle \:applying \: pyth \\ {x}^{2} = {7}^{2} - 3 \sqrt{2}  \: units

6 0
2 years ago
Find the arc length for arcs of circles as follows:
Sauron [17]

Answer:

≈ 11.78 in

Step-by-step explanation:

The arc length is calculated as

arc = circumference of circle × fraction of circle

     = 2πr × \frac{\frac{\pi }{4} }{2\pi } ( cancel 2π on numerator/ denominator )

     = 15 × \frac{\pi }{4}

     = \frac{15\pi }{4}

     ≈ 11.78 in ( to 2 dec. places )

6 0
2 years ago
7 (1) = 7 is an example of what property?
Kitty [74]

Answer:

Identity property

Step-by-step explanation:

Identity property of multiplication: The product of 1 and any number is that number. For example, 7 × 1 = 7 7 \times 1 = 7 7×1=77, times, 1, equals, 7.

I hope it's helpful!

5 0
2 years ago
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