2 years ago

2b + y = 15 is this an expression?

Mathematics

2 answers:

Leya [2.2K]2 years ago

6 0

Answer:

No, it's not.

Step-by-step explanation:

2b + y = 15 is not an expression because it's an equation containing an equal sign. An expression cannot include inequality signs or equal signs.

FrozenT [24]2 years ago

4 0

Answer:

Step-by-step explanation you do the inverse which is subtraction and you get y

2-2=0 15-2=13 y=13

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18 questions answered correctly on a test. that is 75% of the total number of questions. How many questions were on the test?

adelina 88 [10]

Answer:

24 = questions on test

Step-by-step explanation:

Questions answered correctly = questions on test * percent answered correctly

We know that she answered 18 correctly and that 75% were answered correctly

Substitute this information into the equation

18 = questions on test *.75

Divide by .75 on each side

18/.75 = questions on test *.75/.75

24 = questions on test

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3 years ago

I need help plz help me !!

elena-14-01-66 [18.8K]

Answer:

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Step-by-step explanation

I took the test and 65 is off of the percentage list!

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Answer:

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