Answer:
Step-by-step explanation:
4 1/2 minutes = 4.5 minutes
2 / 4.5 = 0.44 laps per minute
OR
4.5 / 2 = 2.25 minutes per lap
not sure which one ur looking for...but both are unit rates
Answer:
16
Step-by-step explanation:
To solve this equation, we need the formula for perfect squares:
or
<em>this is the formula we will use because the signs match the one in the question</em>.
Knowing these, we can set up an equation that assumes that the answer we will end up with is a perfect square.
Work:
- this is the setup for being able to solve for the unknown
, now we need to solve for .
(I replaced 
with 
because I'm setting up this question to be a perfect square).
- multiply the left side. Remember that your answer will not be
, but 
.
- Divide like terms and isolate the variable. In this case,
and 
are on both sides, so dive them and they will be canceled out.
- divide by
and you will have your value for .
- Now we plug into our original equation equation for perfect squares.
Our final answer is 16.
Answer:
a.False
b.True
c.False
d.True
e.True
f.True
g.False
h.False
Step-by-step explanation:
a.The quotient of 25/11 =2, 25-2*11=3 not 14
b.25/11 and 14/11 have the same remainder which is 3
c.The quotient of 3/11 =0, 3-0*11=3 not 14
d.14/11 and 3/11 have the same remainder which is 3
e.The quotient of 14/11 is 1, 14-1*11=3
f.14/11 and 3/11 have the same remainder which is 3
g.Incorrect expression
I. Incorrect expression
12 is the 15% of 80
80 x 0.15 = 12
Answer:
x=−7/5and y=−6/5
Step-by-step explanation:
Step: Substitute−2x−4foryiny=3x+3:
y=3x+3
−2x−4=3x+3
−2x−4+−3x=3x+3+−3x(Add -3x to both sides)
−5x−4=3
−5x−4+4=3+4(Add 4 to both sides)
−5x=7
−5x
−5
=
7
−5
(Divide both sides by -5)
x=−7/5
