The team sold 755 cards.
Explaination:
.40 times 755 equal $302
Answer:
√13
Step-by-step explanation:
d² = (-3)² + (-2)²
d² = 9 + 4
d² = 13
d = √13
Find the slope first: 4=x 2=y 1=x2 -7=y2
-7-2/1-4=-9/-3
So the slope is -9/-3
so far we have y=-9/-3x-b
then we replace
2=-9/-3(4)-b
2=-9/-3*4-b
2=12-b
12-2=10
10=b
So y=3x-10
Answer:
Thus, Sue has 24 dimes and 76 quarters.
steps:
Let d be the number of dimes Sue has and let q be the number of quarters As she has 2140 cents total, a dime is worth 10 cents, and a quarter is worth 25 cents, we obtain the following system of equations:
{
d
+
q
=
100
10
d
+
25
q
=
2140
From the first equation, we have
d
=
100
−
q
Substituting that into the second equation, we have
10
(
100
−
q
)
+
25
q
=
2140
⇒
1000
−
10
q
+
25
q
=
2140
⇒
15
q
=
1140
⇒
q=
1140
/15
=
76
Knowing that q
=
76 we can substitute that value into the first equation to obtain
d
+
76
=
100
∴
d
=
24
