Answer:
280
Step-by-step explanation:
Not entirely sure what 3 in means, but if we were to multiply the lenght*witdth*height we would get 56 since 8 x 3.5 x 2 =56, if we then multiplied one block by 5 we would get 280. this tower would have a height of 10 inches, a length of 8 inches, and a width of 3.5
-6=4x+12
+12=4x
6=4x
/4 /4
3/2=x
let the goldfish be x and the guppies be y
4x + 3y = 29...equ(1)
3x + 5y = 30...equ(2)
multiplying equation 1 by 5 and equation 2 by 3
20x + 15y = 145...equ(1)
9x + 15y = 90...equ(2)
subtracting equation 2 from 1
11x = 55
∴x = 5
substituting the value of x into equation
4(5) + 3y = 29
20 + 3y = 29
3y = 9
∴y =3
Answer:
y = x + 3
Step-by-step explanation:
slope intercept form: y = mx + b
slope is given: 1
(x, y) is given: (4, 7)
plug in values and solve for b:
7 = (1)(4) + b
b + 4 = 7
b = 3
rewrite equation:
y = 1x + 3
y = x + 3
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