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Inessa05 [86]
3 years ago
11

Please help me!

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
5 0
<span>4x + 3y = 12
-2x - 5y = 1
multiply bottom by 2
</span><span>4x + 3y = 12
-4x - 10y = 2
add both equations
-7y = 14
divide by 7
y = -2
plug into first equation
4x + 3(-2) = 12
solve for x
4x = 18
x = 4.5

</span>
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Please do It fast, I need it
jeka94

The reduction was 1/5.

Because you are given the reduced values, multiply the reduced value by the inverrse of the factor:

Inverse of 1/5 = 5

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6 0
3 years ago
PLEASE HELP ASAPPPPP
sveticcg [70]

Answer:

506.7 cm²

Step-by-step explanation:

The amount of cardboard needed would be the surface area of the cone,

S= pi(r)(l+r) where r is the radius and l is the slant height.

You can find l using the Pythagorean theorem. l²=r²+h² which is l²=6²+20² and you get l = √436.

Plug r and l into the equation: S = 6pi(√436 + 6) = 506.7 cm²

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4 0
2 years ago
you are making necklaces for your friends. You have 72 blue beads and 42 red beads. Each friend will recieve a identical necklac
Leni [432]

Answer: 6

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4 0
3 years ago
Read 2 more answers
Graph the function.<br> y=-x-6 ifx&lt;-6<br> y = 2x + 12 if x&gt;-6
Naddik [55]

Answer:

  see attached

Step-by-step explanation:

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For x > -6, the function has a slope of 2 and an x-intercept of -6.

The function given here is not defined at x=6, so there is a hole at (-6, 0).

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3 years ago
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chubhunter [2.5K]

Answer:

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Step-by-step explanation:

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