MATHEMATICS MIDDLE SCHOOL

What’s the answer to this question

Answers

Answer 1

Answer:

Answer:

The length is 65 cm and the width is 12 cm

Step-by-step explanation:

A = lw = 780

P = 2 (l+w) = 154

The length is 5 more than 5 times the width

l=5w+5

P = 2 (l+w) = 154

Divide each side by 2

2 /2 (l+w) = 154/2

l+w = 77

Substituting l = 5w+5

5w+5 +w = 77

6w+5 = 77

Subtract 5 from each side

6w +5-5 = 77-5

6w = 72

Divide each side by 6

6w/6 = 72/6

w = 12

Now lets find l

l = 5w+5

l = 5(12)+5

l = 60+5

l = 65

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I'm not sure, so I won't answer it, in case you get it wrong

In the school chorus 4/24 of the students are fourth graders.In simplest form what fraction of the students in the school chorus are fourth grader

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The answer to your question is 1/6

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Recall that the length a spring streches varies directly with the amount of weight attached to it. a certain spring stretches 5cm when a 10-gram weight is attached write a direct variation equation relating the weight x and the amount of stretch y.

Answers

Direct variation is y=kx

In this case, y=1/2x. The spring stretches 5 cm for every 10 grams. Therefore if y=5 and x=10, k would have to be 1/2. That's how we come up with our direct variation model.

$This\ spring\ stretches\ in\ proportion\ to\ weight,\ that\ is,\ for\ every \n 10\ grams\ of\ weight\ the\ amount\ of\ stretch\ is\ 5\ cm.\n \nx\ [g]\ \ \ |\ \ 10\ \ |\ \ 20\ \ |\ \ 30\ \ |\ \ 40\ \ |...|\ \ \ a\ \ \ |\n------------------\ny\ [cm]\ |\ \ 5\ \ \ |\ \ 10\ \ |\ \ 15\ \ |\ \ 20\ \ |...|\ \ (1)/(2) a\ \ |\n\na\ variation\ equation\ is\ y= (1)/(2) x$

on a test, 20 problems were given. five points were given for each correct anawer, and 2 points deducted for each incorrect answer. How many correct answers are required to score 79 on the test?

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you cant technically get a 79 unless you get 3 point for a question

Which of the following is true about a linear function? It may curve in some parts and be horizontal in others.It must cross the origin.
It has a constant rate of change.
It must contain only positive values.

Answers

The true statement is "it has a constant rate of change" option (C) is correct which has the constant rate of change.

What is a function?

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

It is given that:

The linear function has a slope and y-intercept

y = mx + c

The m is the slope which is a constant rate of change.

So the truth about the linear function is "It has a constant rate of change."

Thus, the true statement is "it has a constant rate of change" option (C) is correct which has the constant rate of change.

Learn more about the function here:

brainly.com/question/5245372

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Answer: It has a constant rate of change.

How many odd prime numbers are there between 1 and 20?