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1
Grade 9
/ inequalities
7 exercises (100% corrected)
a
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A
B
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A
B
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B
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A
B
1.
Unclassifie
d
exer
cises
E.2088
W
e
note
x
the
n
um
b
er
of
studen
ts
in
a
class
who
had
the
a
v
erage
on
the
last
F
renc
h
test.
Eac
h
sen
tence
b
elo
w
describ
es
a
differen
t
situation.
F
or
eac
h
of
them,
write
an
inequalit
y
v
erified
b
y
the
n
um
b
er
x
.
1
A
t
least
10
p
eople
scored
higher
than
10
.
2
A
t
least
13
p
eople
got
the
a
v
erage.
3
No
more
than
9
p
eople
had
the
a
v
erage.
4
No
more
than
15
p
eople
scored
ab
o
v
e
8
.
E.6434
Consider
the
graduated
line
sho
wn
b
elo
w
:
W
e
denote
a
and
b
the
resp
ectiv
e
abscissas
of
the
p
oin
ts
A
and
B
.
1
Compare
the
abscissas
of
p
oin
ts
A
and
B
.
2
Consider
the
p
oin
ts
A
and
B
with
resp
ectiv
e
abscissas
:
a
+3
;
b
+3
Compare
the
abscissas
of
the
p
oin
ts
A
and
B
.
3
Consider
the
p
oin
ts
A
and
B
of
abscissa
:
a
−
2
;
b
−
2
Compare
the
abscissas
of
p
oin
ts
A
and
B
.
E.5662
Consider
t
w
o
n
um
b
ers
a
and
b
suc
h
that
a
<
b
.
F
or
eac
h
question,
complete
the
blanks
to
compare
the
pairs
of
n
um
b
ers
sho
wn
:
a
a
+2
:::
b
+2
b
a
−
4
:::
b
−
4
c
a
+
1
2
:::
b
+
1
2
d
a
−
ı
:::
b
−
ı
E.5664
Let
x
b
e
an
indeterminate
n
um
b
er.
a
Si
x
+2
>
5
then
x
>
:::
b
Si
x
−
5
>
0
then
x
>
:::
c
Si
x
+4
<
2
then
x
<
:::
d
Si
x
−
2
<
6
then
x
<
:::
E.6435
On
a
graded
line,
consider
t
w
o
p
oin
ts
A
and
B
whose
abscissas
a
and
b
are
noted.
1
Consider
the
scaled
line
b
elo
w
:
a
Compare
the
abscissas
of
p
oin
ts
A
and
B
.
b
Place
the
p
oin
ts
A
and
B
with
abscissas
2
×
a
and
2
×
b
,
resp
ectiv
ely
,
on
the
graduated
line
b
elo
w.
c
Compare
the
abscissas
of
p
oin
ts
A
and
B
.
2
Consider
the
scaled
line
b
elo
w
:
a
Compare
the
abscissas
of
p
oin
ts
A
and
B
.
b
Place
the
p
oin
ts
A
and
B
with
abscissas
2
×
a
and
2
×
b
,
resp
ectiv
ely
,
on
the
graduated
line
b
elo
w.
c
Compare
the
abscissas
of
p
oin
ts
A
and
B
.
3
Consider
the
scaled
line
b
elo
w
:
a
Compare
the
abscissas
of
p
oin
ts
A
and
B
.
b
Place
the
p
oin
ts
A
and
B
with
abscissas
−
a
and
−
b
,
resp
ectiv
ely
,
on
the
graduated
line
b
elo
w.
c
Compare
the
abscissas
of
p
oin
ts
A
and
B
.
4
Consider
the
scaled
line
b
elo
w
:
a
Compare
the
abscissas
of
p
oin
ts
A
and
B
.
b
Place
the
p
oin
ts
A
and
B
with
abscissas
−
a
and
−
b
,
resp
ectiv
ely
,
on
the
graduated
line
b
elo
w.
c
Compare
the
abscissas
of
p
oin
ts
A
and
B
.
E.5663
Consider
a
and
b
t
w
o
n
um
b
ers
suc
h
that
a
<
b
.
F
or
eac
h
question,
complete
the
blanks
to
compare
the
t
w
o
prop
osed
n
um
b
ers
:
a
2
a
:
:
:
2
b
b
−
3
a
:
:
:
−
3
b
c
1
2
a
:
:
:
1
2
b
d
−
3
2
a
:
:
:
−
3
2
b
E.2066
Consider
a
n
um
b
er
x
indeterminate,
but
v
erifying
the
follo
wing
inequalit
y
:
x
>
4
.
F
or
eac
h
question,
three
statemen
ts
are
prop
osed,
only
one
of
whic
h
is
correct.
Sp
ecify
whic
h
ones
:
a
b
c
1
x
+2
<
6
x
+2
>
6
x
+2
<
4
2
2
x
>
2
2
x
<
8
2
x
>
8
3
−
0.5
x
<
−
2
−
0.5
x
>
−
2
−
0.5
x
>
2
4
2
x
+1
<
9
2
x
+1
>
9
2
x
+1
<
1.5
5
1
−
x
<
3
1
−
x
>
−
3
1
−
x
<
−
3
h
ttps:/
/c
hingmath.fr
chapExoCorrec/2088
sacados/2088
chapExoCorrec/6434
sacados/6434
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A
B
chapExoCorrec/5662
sacados/5662
chapExoCorrec/5664
sacados/5664
chapExoCorrec/6435
sacados/6435
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chapExoCorrec/5663
sacados/5663
chapExoCorrec/2066
sacados/2066
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