Answer: 7.2$
hope it helps :)
step-by-step explanation:
Cost of each box = 3$
Cost of 3 boxes without 20% coupon = 9$
With 20% off Coupon = 9 by 100 multiplied by 20
(the zero's cut with each other leaving)
= 9 by 10 multiplied by 2
(9 multiplied by 2 = 18)
= 18 by 10
(18 divided by 10 = 1.8)
= the 20% of 9$ is equal to 1.8
when subtracted with the total cost leaves 7.2$
Explic
Pasos para resolver una ecuación linea
A=J(1+rt)
Usa la propiedad distributiva para multiplicar J por 1+rt.
A=J+Jrt
Intercambie los lados para que todos los términos de las variables estén en el lado izquierdo.
J+Jrt=A
Combina todos los términos que contienen J.
(1+rt)J=A
La ecuación está en formato estándar.
(rt+1)J=A
Divide los dos lados por 1+rt.
rt+1(rt+1)J=rt+1A
Al dividir por 1+rt, se deshace la multiplicación por 1+rt.
J=rt+1A
Answer:
Triangles always have 180°, split in some manner between the three angles. With two of the three angles given, you can set up a relatively simple equation, where the third angle is assigned to the variable x:
45°+85°+x=180°
130°+x=180°
x=50°
Step-by-step explanation:
you subtract -4 by 7.
then you hav 5x=7
you divide 5x by 5 and seven by five so your x= that answer
then you put that number into the x in the second equtaion
then you subtract that number after multiplying the 6 by the number x equals
then you divide 2y by 2 and 22 by 2 and thats your y value
No, he got an 80% on the test. 24 divided by 30=0.80
