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3 years ago

How many quarters are there in thirty dollars

Mathematics

2 answers:

Olenka [21]3 years ago

7 0

Idk becuase i searched it up and got one fourth

AURORKA [14]3 years ago

6 0

There are 120 quarters bc if there are 4 quarters in 1 dollar than there should be 120 in $30

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A local clothing store sells jeans and shirts. The store makes a $10 profit on the sale of jeans and $3 profit on the sale of th

Zepler [3.9K]

Answer:

An inequality to model the situation is : ( 10 m + 3 n) ≥ 150

Here, m : The number of jeans sold

n : The number of shirts sold.

Step-by-step explanation:

Here, the profit on each sale of jeans = $ 10

The profit on each sale of shirt = $ 3

The profit needed to be made = AT LEAST $150

Now, here: Let us assume the number of jeans sold = m

And, The number of shorts sold =n

So, the profit on m jeans = m x ( Profit on 1 jeans) = m x ( $ 10) = 10 m

So, the profit on n shirts = n x ( Profit on 1 shirt) = n x ( $ 3) = 3 n

⇒ The total profit on m jeans + n shirts = ( 10 m + 3 n)

But, according to the question, the profit should AT LEAST $150.

⇒ TOTAL PROFIT ≥ $ 150

⇒ ( 10 m + 3 n) ≥ 150

Hence, an inequality to model the situation is : ( 10 m + 3 n) ≥ 150

3 0

4 years ago

So i know how to do this but.... im confusing my self >n< please help me

ASHA 777 [7]

Answer:

see the attached graph

Step-by-step explanation:

When an equation is in standard form (or almost standard form), I like to put it into intercept form for graphing. Here, it is convenient to divide the equation by 2 to put it in standard form (coefficients mutually prime).

x +3y = -3

Now, it is convenient to divide by the constant on the right (-3) to put the equation into intercept form:

x/(-3) +y/(-1) = 1

The denominators are the x- and y-intercepts, respectively. Plot those, (-3, 0) and (0, -1), and draw the line through them.

3 0

4 years ago

A city has a population of 250,000. The population is expected to decrease 1.5% annually for the next decade. Write a function t

notka56 [123]

Answer:

Population after $t\ years=250000\times (0.985)^t$

Step-by-step explanation:

If $P$ is the initial amount, $r$ is the annual rate of decrease then after $t$ years the remaining amount $(A)$ will be given by

$A=P(1-\frac{r}{100})^t$

Here $P=250000, r=1.5\%\\\\A=250000(1-\frac{1.5}{100})^t\\\\A=250000(1-0.015)^t\\\\A=250000\times (0.985)^t$

5 0

3 years ago

Solve for X: 2^3x + 1 = 2^10 please look at photo and give detailed steps!! thank you

mel-nik [20]

Step-by-step explanation:

since the bases are the same all you have to do is just get the powers of both bases which is 3x + 1 and 10

you're then going to equate 3 x + 1 to 10 and then you have to make +1 cross to the other side making it become -1

you then can subtract 1 from 10 leaving you with 9

and at the LHS we have 3x

we are gonna get rid of the three by dividing it into itself and the 9 at the RHS then X = 3

7 0

3 years ago

Name a perfect square between 60 and 80.

Studentka2010 [4]

Answer:

8*8 = 64

Step-by-step explanation:

PERFECT SQUARE

4 0

3 years ago

Read 2 more answers