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3 years ago

!! PLEASE HELP!!

Mathematics

1 answer:

laila [671]3 years ago

4 0

Answer:

10 customers

Step-by-step explanation:

16x+4y=360

x=20

16(20)=320

320+4y=360

4y=40

y=10

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Which numbers belong to the range of the relation {(0, 7), (6, 0),

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Range is the second number in an ordered pair. Domain is the first. The correct answers are A, B, & D.

5 0

3 years ago

How do I solve: m-77 = 222

Alona [7]

Answer:

m = 299

Step-by-step explanation:

When isolating variables, you must do the same thing to both sides of the equation. To isolate "m", you must add 77 to both sides.

m - 77 = 222 <----- Original equation
+77 +77 <----- Add 77 to both sides

m + 0 = 299 <----- Resulting equation

m = 299 <----- Rewrite

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2 years ago

Read 2 more answers

Leon has 4 times as much money as Andrew, and Bryanna has $250 more than Leon. If Bryanna has $300, how much does Andrew have? L

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Answer:

$12.5

Step-by-step explanation:

Bryanna has : $300

Since she has $250 more than Leon.

To get the amount that Leon has, Subtract $250 from $300. $300-$250=$50

So Leon has : $50

Leon has 4 times as much money as Andrew

To get the amount that Andrew has, Divide $50 by 4. $50÷4=$12.5

8 0

3 years ago

In a given course a student receives preliminary examination grades of 81, 85, and 95. The final examination is weighed for one-

Vsevolod [243]

Answer:

B. 96

Step-by-step explanation:

Let x represent score of final third exam.

We have been given that in a given course a student receives preliminary examination grades of 81, 85, and 95.

Let us find average of preliminary scores.

$\frac{81+85+95}{3}=\frac{261}{3}=87$

We have been given that the final examination is weighed for one-third and the average of the preliminary grades is weighed as 2/3 of the final grade. This means that final grade is equally weighed into 3 parts. The two parts are 87 each and third part is x.

Using our given information, we can set an equation as:

$\frac{87+87+x}{3}=90$