You can write the two equations x = 4y - 7 and x + y = 93; substitute the value of x into the other equation
(4y - 7) + y = 93; combine like terms
5y - 7 = 93; add 7 to both sides
5y = 100; divide both sides by 5
y = 20; substitute this value into the other equation
x + 20 = 93
x = 73
So the numbers are 20 and 73
Answer:
y
=
4
(
x
+
11
)
2
−
484
Step-by-step explanation:
Answer:
<h2>
503 cm²</h2>
Step-by-step explanation:
The surface area of the figure is sum of areas of two triangles and three ractangles:

Answer:
390
Step-by-step explanation:
500*.22=110
500-110=390
390
Answer:
7 cm
Step-by-step explanation: