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In-s [12.5K]
4 years ago
12

~Help me with this please! I will mark as BRANLIEST! (Look at the attachment)

Mathematics
1 answer:
EleoNora [17]4 years ago
7 0

Answer:

You will find the answer from my explanation.

Step-by-step explanation:

Let the cost of one small shirt be x

And that of a large shirt be y

From the expression above;

4x + 14y = 210; since the total cost of a small shirt by Wili is;

4 * x and the large shirts 14 * y

Similarly for Jordan we have:

12x + 11y = 110; since the total cost of a small shirt by Jordan is;

12 * x and the large shirts 11 * y

We now have two equations,

So you can solve both equations now using elimination method;

If you multiply all the variables of x and y in the first equation by 3 and then subtract the second equation from it, x would be eliminated remaining y;

Multiplying the first equation we have;

12x + 42y = 630

- 12x + 11y = 110

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

0. + 31y = 520

You can continue from there

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Carl has a rock collection. Of the rocks, 3/8 are quartz and 1/3 are granite. What fraction of Carl's rocks are quartz or granit
hoa [83]

Answer:

\frac{17}{24} <em>of Carl's rocks are quartz or granite</em>

Step-by-step explanation:

<u>Proportions and Fractions </u>

A proportion is expressed as a fraction a/b, where a and b are compared by division. If a=b, the proportion (or ratio) equals 1, if a<b, the ratio is less than 1, and if a>b, the ratio is greater than 1. The proportion of elements of a set to the total number of elements of the set is less than one, and the sum of all them equals 1.

We know 3/8 of Carl's rock collection are quartz and 1/3 are granite. If both subsets of rocks are mutually exclusive or disjoint (cannot happen simultaneously), then the proportion of both is the sum of the fractions.

\displaystyle \frac{3}{8}+\frac{1}{3}=\frac{9+8}{24}=\frac{17}{24}

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3 years ago
A law firm is going to designate associates and partners to a big new case. The daily rate charged to the client for each associ
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oh sor

Step-by-step explanation:

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3 years ago
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True or False: You cannot approximate the location of an irrational number on the number line.
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Can some help me with this problem please -41=-2/5(45n+60)+n
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Answer:

Step-by-step explanation:

I will ASSUME you mean

-41 = (-2/5)(45n + 60) + n    

and not -41 = -2/(5(45n + 60)) + n

        or -41 = -2/(5(45n + 60) + n)

-41 = (-2/5)(45n + 60) + n

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What is the area of the composite figure whose vertices have the following coordinates?
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Answer:

60 square units

Step-by-step explanation:

We can use Pythagoras to solve this as appropriately projecting lines from any point will form a triangle. The vertical and horizontal lengths of which can be read of from the axis.

The distance between two points is  √ ( x 1 − x 2 ) 2 + ( y 1 − y 2 ) 2

Let the distance between two points be  

d i

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Area  = d 1 × d 2 = 2 √ 10 × 3 √ 10 = 60

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