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2 years ago

Write the expression:

Mathematics

2 answers:

nydimaria [60]2 years ago

8 0

Answer:

5n+4

Step-by-step explanation:

Four more than 5 times a number (n)

So we get 5n+4

Dmitriy789 [7]2 years ago

5 0

Answer:

5n+4

Step-by-step explanation:

As you have 4 more, you know you need to add four to n. Then, the expression asks 5 times n, leaving 5n+4.

You might be interested in

Mario was given some birthday

Len [333]

The answer would be option B "he was given $50 for his birthday."

Here is how:

Y equals the amount of money in the account.

75$+50$=

75x represents the amount of money he DEPOSITS which is in the question.

So if he deposits 75$ a week (which represents X) and he adds 50$ to it which means he has 50$ to begin with which means he got 50$ for his birthday.

Also....

Because 75x already represents X therefore it wouldn't be options A, C or D.

Hope this helps!

4 0

3 years ago

John needs to write 2,146 online math questions in 45 weeks. John is estimating how many questions he should write each week to

vagabundo [1.1K]

Answer: 2,000 ÷ 50

Step-by-step explanation:

From the question, we are informed that John needs to write 2,146 online math questions in 45 weeks and that he is estimating how many questions he should write each week to meet the deadline.

The compatible numbers that provide a better estimate for the number of question he should write each week, is 2,000 ÷ 50. This is because rounding up of 2146 to the nearest thousand gives 2000. The number beside the thousand place is 2 and sinces it's not up to 5, the number becomes 2000. Likewise 45 to the nearest ten gives 50 since the number beside the ten is 5, therefore 1 will be added to 4 which becomes 5 and the number in the unit place is changed to 0, this makes the number become 50.

Therefore, the answer is 2000 ÷ 50.

5 0

3 years ago

Consider randomly selecting a student at a large university, and let A be the event that the selected student has a Visa card an

poizon [28]

Answer:

We have that $B = 0.3$ .

$0.3 = b + (A \cap B)$

However, b is a probability, which means that it cannot be negative. So no, P(A ∩ B) cannot be 0.5. It can, at most, be 0.3.

Step-by-step explanation:

Event A:

Probability that a student has a Visa card.

Event B:

Probability that the student has a MasterCard.

We have that:

$A = a + (A \cap B)$

In which a is the probability that a student has a Visa card but not a MasterCard and $A \cap B$ is the probability that a student has both these cards.