Answer:
x = -9
y = -8
Step-by-step explanation:
here's the solution :-
=》y = 2x + 10
=》y = x + 1
plunging the value of y from equation 1 into equation 2
=》2x + 10 = x + 1
=》2x - x = 1 - 10
=》x = -9
value of x = -9
now, plugging the value of x in equation 2, we get :-
=》y = x + 1
=》y = -9 + 1
=》y = -8
Answer:
4 19/30
Step-by-step explanation:
1 3/10 + 3 1/3 = 139/30 or 4.63333...
Simplyfiy 139/30 to 4 19/30
Answer:
f(4)
Step-by-step explanation:
replace the x in f(x) with 4
There are 20 cassettes.
Step-by-step explanation:
Given,
Ratio of cassette to compact disc = 10:3
Let,
the number of cassettes = 10x
Number of compact disc = 3x
According to given statement;
the number of cassettes is 10 less than 5 times the number of compact discs.
10x = 5(Number of CD) - 10

Dividing both sides by 5

Number of cassettes= 10x = 10(2) = 20
There are 20 cassettes.
Keywords: variable, ratio
Learn more about variables at:
#LearnwithBrainly
Answer:
80.64
Step-by-step explanation:
12.6*6.4=80.64