That is where they intersect each other
it looks like at x=-1 and x=1
so -1 and 1 are the answers
first and 3rd option
Step-by-step explanation:
price difference= $45-$36
=$9
now,
x% of $45=$9
or, x/100 ×45 =9
or, x/20 ×9=9
or, x/20=1
therefore, x= 20%
The vendor sold 124 sodas and 90 hot dogs.
Step-by-step explanation:
Let,
x be the number of sodas.
y be the number of hot dogs.
Total sold = 214
According to given statement;
x+y=214 Eqn 1
y= x-34 Eqn 2
Putting value of Eqn 2 in Eqn 1;

Dividing both sides by 2;

Putting x=124 in Eqn 2;

The vendor sold 124 sodas and 90 hot dogs.
Keywords: linear equations, substitution method
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16=1/4 d+2.5
Where d is diameter of larger gear
16-2.5=1/4d
D=74 cm
F = 1.8C + 32
Replace C by 15 and solve:
F = 1.8 (15)+32
F= 27+32
F= 59