Answer:
62m
Step-by-step explanation:
16+16+8+12+10
=62m
Answer:
Roy is 10 years old at present and Joan is 5 years old at present
Step-by-step explanation:
Let
x----> Roy's age
y----> Joan's age
we know that
x=2y ----> equation A
(x+3)+(y+3)=21 ----> equation B
substitute equation A in equation B
(2y+3)+(y+3)=21
solve for y
3y+6=21
3y=21-6
3y=15
y=5 years
Find the value of x
x=2y ----> x=2(5)=10 years
therefore
Roy is 10 years old at present
Joan is 5 years old at present
Answer: Hope this helps
y = 3/5x + 100
Slope: 3/5
Y-int: 100
Step-by-step explanation:
y = mx + b
<em>replace b with y-int</em>
y = mx + 100
<em>replace m with the slope which is 3/5</em>
y = 3/5x + 100
<em>How do you get slope?</em>
<em>Well I did rise/run with two points so I saw it ran 5 squares and rose only 3.</em>
<em>How do you get the y-int?</em>
<em>Well the y-int is the point where x is 0. So using the point (0,100), since x is 0, the y-int is 100.</em>
Answer:
x = 10 and y = 2
Step-by-step explanation:
multiply first equation by 5 and 2nd equation by 3 then subtract equation 1 and 2, we get,
10x+15y= 130
9x+15y=120
( -) (-) (-)
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x= 10
substituting the value of x in equation 1 we get
2x + 3y = 26
2*10 + 3y = 26
3y = 26-20
y =6/3
y= 2.i hope this helps