The first thing we must do for this case is to define variables.
We have then:
x = Multiple-choice questions
y = short-answer questions
We write the following system of equations:
2x + 4y = 80
x + y = 25
Solving the system of equations we have:
x = 10
y = 15
Answer:
there are 10 multiple-choice questions
A because mrs guha taught me
Answer:
81
Step-by-step explanation:
To find the answer, first divide 54 by 6 to get 9. Now we know that Adele prepared 9 kilograms of dough an hour. Now we multiply 9 by 9 to get 81. So, in conclusion, Adele made 81 kilograms of dough in 9 hours
Hope this helps :)
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Answer: Its (C) there is not enough inf...
Step-by-step explanation: PLEASE mark me as (brainlisit) .... thank uu
Answer:
The discriminant of a quadratic equation helps determine the types of roots that can be extracted from the polynomial equation. The sign of the discriminant helps to do this. The formula is b^2 -4ac equal to (-9)^2 -4*2*3 equal to 57. this is over zero and there are two roots, hence.
Step-by-step explanation:
