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3 years ago

What two numbers have a sum of 217 and a difference of 85?

Mathematics

1 answer:

Setler [38]3 years ago

8 0

Answer:

the two numbers are 151 and 66

Step-by-step explanation:

x+y =217

x-y = 85

add the two equations

x+y =217

x-y = 85

-------------

2x = 302

divide by 2

2x/2 = 302/2

x = 151

now find y

x+y =217

151+y =217

subtract 151 from each side

y = 217-151

y =66

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Answer:

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Step-by-step explanation:

y - 4 = 3(x + 1)

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Point slope form looks like:

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3 years ago

1. 3x + 7 = 13 (x = -2; x = 2; x = 5)

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3 years ago

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jonny [76]

Answer:

8.60 units (3 s.f.)

Step-by-step explanation:

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$\sqrt{(y1 - y2)^{2} + {(x1 - x2)}^{2} }$

Thus using the above formula,

Distance between (-10, 9) and (-5, 2)

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3 years ago

A woman has 7 keys. only one of them will open her door. when seh arrives at the door there is no sufficient light for her to fi

Gala2k [10]

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$\frac{1}{7}$
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Answer:

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Step-by-step explanation:

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