Answer:
60
Step-by-step explanation:
Given the following :
Half of baseball card got wet and was ruined
Number of baseball cards bought has replacement for the ruined cards = 20
Total number of baseball cards now = 50
The initial number of baseball cards =?
Let the initial number = y
Number that hit ruined = half of initial = y/2
Hence,
y - y/2 + 20 = 50
y/2 + 20 = 50
y/2 = 50 - 20
y/ 2 = 30
y = 30 * 2
y = 60
Hence, he started with 60 baseball cards.
Answer:
Length = 8
Step-by-step explanation:
If Area = L • W then if we have the area and the width we should divide the Area by the width to get the length.
6 2/5 divided by 4/5 = 8
Steps:
1) convert 6 2/5 to improper fraction and switch sign: 32/5 • 5/4 = 8
Hope I helped!
Answer:
5² × 5
5²: 10
karena ada pangkat 2
jadi kita kalikan dengan jumlah yang
dihitung yang sesuai dengan pangkat nya
Contoh:
5×10+5 =
55
Step-by-step explanation:
( Type an exact answer,using radicals and i as
needed) .
Answer:
See attachment for graph
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Step-by-step explanation:
Given
Required
The graph of the step function
Before plotting the graph, it should be noted that:
and use closed circle at its end
and use open circle at its end
So, we have:
The line stops at -1 with an open circle
The line starts at - 1 and stops at -1 with a closed circle at both ends
The line starts at 1 with an open circle
The options are not complete, so I will plot the graph myself.
<em>See attachment for graph</em>
A^2-2ab+b^2=(a-b)^2
(a-b)^2- c^2= (a-b-c)(a-b+c)
[difference of square]
Hope this can help.