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Dmitriy789 [7]
3 years ago
7

Shelly is 3 years older than Michele. Four years ago the sum of their age was 67. Find the age of each person.

Mathematics
2 answers:
lawyer [7]3 years ago
4 0

total of ages now is 67 + 4 + 4 = 75

S=shelly

M= Michelle

Michelle is 3 yrs younger than Shelly so use S-3

S +M = 75

replace M with S-3 to get:

S +S-3=75

2S=78

s=39

So shelly is 39

Michelle is 3 years younger = 39-3 = 36


lyudmila [28]3 years ago
3 0
It's is 36 I think I am not sure
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Find three consecutive positive integers such that the product of the first and​ third, minus the​ second, is 1 more than 7 time
Bas_tet [7]
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Define x :
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Let the smallest number be x.
First number = x
Second Number = x + 1
Third Number = x + 2

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Construct equation :
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x(x+2) - (x+1) = 7(x+2) + 1

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Solve x :
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x(x + 2) - (x + 1) = 7(x + 2) + 1
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6 0
3 years ago
Y =  7x +  3 <br> what is the X and Y intercepts
Neko [114]
To find the x intercept,plug a zero in for y and solve.
To find the y intercept,plug a zero in for x and solve.
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y = 7x + 3
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3 0
3 years ago
What is the value of x
pav-90 [236]

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If RS is 2 sqrt(3), then ST must be 2 and RT must be 4.

Triangle QRT is a 45-45-90 triangle, which means it has the relationship x - x - x sqrt(2).

If RT is 4, then RQ must also be 4.

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7 0
2 years ago
How to solve this problem
insens350 [35]
What’s da problem that u have?
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3 years ago
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