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3 years ago

Help me please and thank you :)

Mathematics

1 answer:

Paul [167]3 years ago

4 0

Answer:

Step-by-step explanation:

We have the equation:

$\displaystyle \frac{3}{8}y=2+x$

And we want to determine whether or not this represents a direct proportion.

First, let's solve for y. Multiply both sides by 8/3:

$\displaystyle y=\frac{16}{3}+\frac{8}{3}x$

Remember that direct proportions must pass through the origin point on a graph. In other words, their y-intercept or constant value is zero.

Since the constant value here is not zero (it is 16/3), the equation is not direct proportion.

Our answer is A.

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Freddie is half as tall as his mother.

EleoNora [17]

Answer:

Step-by-step explanation:

Freddie is one meter shorter than his father

His father is 180 centimeters tall

So freddie is 80 centimetres

Freddie is mother÷2

So 80=M÷2

Mother is 190 centimeters

8 0

3 years ago

Read 2 more answers

Please help I need two other related equations to the problem C = K − 273.15. please hurry.

N76 [4]

k=273.15+c

that's one of them

3 0

4 years ago

Andrew is showing his work in simplifying −4.5 + 4.2 + 5.6 − 7.3. Identify any errors in his work or in his reasoning. Write fee

Vinil7 [7]

Solving the expression $-4.5 + 4.2 + 5.6 -7.3$ we get -2.

Comparing the solution with the one given, you can find the errors.

Step-by-step explanation:

We need to simplify $-4.5 + 4.2 + 5.6 -7.3$ and identify errors.

Since the steps are not shown, so we cannot identify errors but I can solve the expression and you can compare to find errors.

Simplifying:

$-4.5 + 4.2 + 5.6 -7.3$

Using algebraic rule: if one digit has positive (+) sign and other digit has negative (-) sign then we will perform subtraction. and after subtraction, the sign of bigger value will be the sign of result.

Using the rule and solving:

$=(-4.5 + 4.2) + 5.6 -7.3$

$=-0.3 + 5.6 -7.3$

$=(-0.3 + 5.6) -7.3$

$=5.3 -7.3$

$=-2$

Solving the expression $-4.5 + 4.2 + 5.6 -7.3$ we get -2

Comparing the solution with the one given, you can find the errors.

Keywords: Simplifying expressions

Learn more about Simplifying expressions at:

#learnwithBrainly

5 0

3 years ago

130% of what number is 208?

ozzi

1. 208/x = 100/130
2. multiply both sides by x
3. 208 = 0.76923x
4. divide both sides by 0.76923
5. x = 270.4

8 0

3 years ago

Give an example of an even function and explain algebraically why it is even.

sveta [45]

There's lots of even functions, but two that come to mind are the absolute value function, IxI, and x^2. These are even because they are reflected over the y axis. Another way to find this is that (-x)^2 is equal to x^2 and so is I-xI, the algebraic method. Good luck!

8 0

3 years ago