Answer:
The dolphin will jump 18 times in 2hours.
Step-by-step explanation:
Find the jumps per hour: 54/6 = 9
^This means that the dolphin jumps 9 times in an hour.
9*2 (hours) = 18
The dolphin will jump 18 times in two hours.
Let that number be x.
"I multiply a number by four" Can be represented by 4x.
"Then I add one" means that to 4x, you added 1. So it's 4x + 1
"The answer is 33" So 4x + 1 = 33.
We need to solve for x.
4x + 1 = 33
First, subtract 1 from each side to have the variable on a side and the number on the other:
4x + 1 - 1 = 33 - 2
4x = 32
Divide both sides by 4 to get the variable x alone on a side and its value on the other side:
(4x)/4 = 32/4
x = 8
You can recheck your answer (very important):
4x = 8*4 = 32
4x + 1 = 32 + 1 = 33
The answer has been approved.
Hope this Helps! :)
Answer:
3(3a²-2x)
Step-by-step explanation:
that right answer
Answer:
4.2
Step:
P=2( base+height)
152.8= 2*72.2 + 2(height)
152.8-144.4 = 2* h
h = 8.4/2= 4.2
Let x is the smaller integer.
x+12 is the larger integer because two integers differ by 12.
The sum of their square means
x² + (x+12)² = 74
x² + x² + 24x + 144 = 74
2x² + 24x + 70 = 0
2(x² + 12x + 35) = 0
2(x+5)(x+7) = 0
x = -5 or - 7
so we have two answer.
first x = -5 as smaller and 7 as the larger x = -5 + 12 = 7
second x = -7 as smaller and 5 as the larger. x = -7 + 12 = 5
