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3 years ago

Please help! Thank you!

Mathematics

1 answer:

Schach [20]3 years ago

8 0

Answer:

$\huge \boxed{ \boxed{ \sf \: y = x + 15}}$

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know:</h3>

linear equation
linear equation word problems
PEMDAS

<h3>tips and formulas:</h3>

linear equation:y=mx+b

<h3>let's solve:</h3>

all we need to care about the middle condition which is

<h3>the new test score is 15 points more than the original score</h3>

given that

original score is x

New score is y

if you pay attention to the given condition

we can find it same as linear equation

therefore

according to the question

the equation is

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Juliet has a choice between receiving a monthly salary of $1750 from a company or a base salary of $1600 and a 3% commission on

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For an amount of sales of $5,000, the two salary choice will be equal

Let the amount of sales be $x

The 3% she will receive will be;

$\frac{3}{100}\times x\text{ = 0.03x}$

We add this to the base salary and equate to the former monthy salary

We have this as;

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1 year ago

The table below shows the number of tea bags needed to make different amounts of iced tea. What is the total number of quarts of

never [62]

Answer:

? = 6

Step-by-step explanation:

We can set up a proportion to find the solution.

$\frac{4}{16}=\frac{?}{24}$

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3 years ago

Asa received scores of 72, 97, and 82 on her last three math tests. She needs a mean test score of 82 to qualify for the math te

Flauer [41]

Scores are {72, 97, 82, x} where x is the unknown fourth score

They add up to 72+97+82+x = x+251

Divide this sum over four because there are four scores we want to average out. We end up with (x+251)/4 = M where M is the mean. Asa wants the mean to be 82, so make M = 82.

We can replace M with 82 and solve for x like so

(x+251)/4 = M

(x+251)/4 = 82

x+251 = 4*82

x+251 = 328

x = 328-251

x = 77

Asa needs a score of 77 on the fourth test so that the mean of the four tests is 82. If she scores higher than 77 on the fourth test, then the mean will be larger than 82.

-----------------------------------

Depending on what your teacher is looking for, the first step is to establish your variable. So you would say "let x = fourth score". However, that seems too easy. So perhaps your teacher is looking for the equation (x+251)/4 = 82 or some variant of it.

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3 years ago

Read 2 more answers

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Answer:

f(7) = 16

Step-by-step explanation:

substitute x = 7 into f(x) , that is

f(7) = 3(7) - 5 = 21 - 5 = 16

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