Answer:
<em>Good luck!</em>
Step-by-step explanation:
The small right angled triangle with hypotenuse vale 5 is similar to the big triangle with b as the hypotenuse
Corresponding sides are in the same ratio so we can write
a/12 = 5/b.....(1)
Also applying pythagoras theorem to the large triangle
b^2 = 5^2 + 12^2
b^2 = 169
b = 13
So substituting in equation (1):-
a / 12 = 5 / 13
a = (5*12 ) / 13
Given,
x
2
+
x
2
1
=98
(x+
x
1
)
2
=x
2
+
x
2
1
+2
98+2=100
∴x+
x
1
=10
(x+
x
1
)
3
=x
3
+
x
3
1
+3(x+
x
1
)
x
3
+
x
3
1
+3(x+
x
1
)=1000
x
3
+
x
3
1
=1000−3(10)=
Answer:
The answer is $56
Step-by-step explanation:
100% is 20, and 80% of 20 is 16. So you just have to add 16+20=36.That was this month.Then you add 20 +36 to combine the months.Therefore getting your answer.
For the proportion you write 80/100+x/20
Answer: y = -8.5
<u>Explanation:</u>
5.1y + 21.3 = -0.3y - 24.6
<u>+0.3y </u> <u>+0.3y </u>
5.4y + 21.3 = -24.6
<u> -21.3 </u> <u> -21.3 </u>
5.4y = -45.9
<u>÷5.4 </u> <u> ÷5.4 </u>
y = -8.5
