H = 2f / (m+1)
[multiply by (m+1)]
h(m+1) = 2f
[divide by 2]
f = (h (m + 1)) / 2
3b / (b+2) = 12 / (b+2)
[multiply by (b+2)]
3b = 12
[divide by 3]
b = 4
3 / (6x + 1) / 2 = 8 / (x + 4) / 3
[multiply both denominators to mike one denominator]
3 / 8(6x+1) = 8 / 3(x+4)
[expand brackets]
3 / (48x + 8) = 8 / (3x + 12)
[multiply by (48x + 8)]
3 = 8(48x + 8) / (3x+12)
[multiply by (3x+12)]
3(3x +12) = 4(48x + 8)
[simplify]
9x + 36 = 192x + 32
173x = 4
x = 4 / 173
Answer:
3(3+x)=9+3x, or B
Step-by-step explanation:
From the diagram, we can see that there are 3 rows of one x and 3 ones each.
Therefore, we can make the equation 3(3+x)
Then we could either count the blocks out to get 9+3x or just solve the above equation.
So, the answer would be 3(3+x)=9+3x, or B
Answer:
B
Step-by-step explanation:
9514 1404 393
Answer:
d: (11×7) - (6 + 10)
Step-by-step explanation:
"the product of 11 and 7" is 11×7.
"the sum of 6 and 10" is (6 +10).
The difference between the product and the sum is ...
(11×7) -(6 +10) . . . . . matches choice D
Answer:
Step-by-step explanation:
Let the base is x, then the legs are 2x each.
<u>The perimeter is:</u>
- x + 2x*2 = 50
- 5x = 50
- x = 10
The base is 10 cm and legs are 20 cm each.
