If we call the number "x" then:
x*25%=21
x*25/100=21
x=21*4
x=84
Hope this helps. :)
Answer:
$82 sundaes
$74 banana split
Step-by-step explanation:
Step one :
Given data
Cost of sundaes =$2 each
Cost of banana split =$3 each
Let the number of sundaes bought be x
And the number of banana split bought be y
The total is x+y
The shop sold 8 more Sundaes than the Banana split
x=8+y—-------1
Total amount made = $156
Therefore the system of equation for the situation is
x=8+y----—----------1
2x+3y=156---------2
But x=8+y
8+y+y=156
8+2y=156
2y=156-8
2y=148
Divide both sides by 2
y=148/2
y=74
On That day they sold $74 banana split
And also they sold x=8+74=$82 sundaes
Answer:
Conditional probability is defined as the likelihood of the occurrence of an event or outcome, based on the occurrence of a previous event or outcome.
Step-by-step explanation:
Answer:
The answer is c because there is not suppose to be a negative number
Step-by-step explanation:
Answer:
250x+140=y
Step-by-step explanation:
so amount earned for 10 hours of work is 250
