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3 years ago

Help me please thanks

Mathematics

1 answer:

Sonbull [250]3 years ago

6 0

4.) 5/3

Rise over run. Up five and over three. Up hill = be positive

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One day a store sold 36 sweatshirts. White ones cost $10.95 and yellow ones cost $11.50. In all, $404.65 worth of sweatshirts

Hatshy [7]

Answer:

17 white sweatshirts were sold and 19 yellow sweatshirts were sold.

Step-by-step explanation:

Let w represent the number of white sweatshirts sold and y represent the number of yellow sweatshirts sold.

We can write a system of equations to represent the situation.

Since the store sold a total of 36 sweatshirts, the sum of the white and yellow sweatshirts must total 36. So:

$y+w=36$

And since each white sweatshirt cost $10.95 and each yellow sweatshirt cost $11.50 and the total profit was $404.65:

$10.95w+11.5y=404.65$

Solve the system. I'll use substitution this time (though elimination will work just as perfect). From the first equation, subtract w from both sides:

$y=36-w$

Substitute this into the second:

$10.95w+11.5(36-w)=404.65$

Distribute:

$10.95w+414-11.5w=404.65$

Simplify:

$-0.55w=-9.35$

Divide both sides by -0.55:

$w=17$

So, 17 white sweatshirts were sold.

Using the modified equation, substitute:

$y=36-(17)=19$

Therefore, 17 white sweatshirts were sold and 19 yellow sweatshirts were sold.

7 0

3 years ago

Which decimal is equal to this fraction

kenny6666 [7]

Answer:

you need a better picture

7 0

3 years ago

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Melanie had 67 dollars to spend on 7 books. After buying them she had 11 dollars. How much did each book cost?

STatiana [176]

$9.57 because 67/7=9.57 only use the first 2 numbers after the decimal with money

7 0

3 years ago

Read 2 more answers

Based on the quadratic model, what was the approximate number of workers that were hired during the seventh year?

IrinaVladis [17]

You need to show quadratic model, in order for me to answer.

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3 years ago

A central angle theta in a circle of radius 7 m is subtended by an arc of length 8 m. Find the measure of theta in degrees. (Rou

gogolik [260]

Answer: In degrees , The measure of $\theta=65.5^{\circ}$

In radians , the measure of $\theta =\dfrac{8}{7}\text{ radians}$ .

Step-by-step explanation:

We know that the formula for length of arc is given by :-

$l=\theta r$

, where $\theta$ = Central angle subtended by arc.

r= radius of the circle.

As per given , we have

Radius of circle : r=7 m

Length of arc : l= 8 m

Substitute these values in the above formula , we get

$8=\theta (7)\\\\\Rightarrow\ \theta =\dfrac{8}{7}\text{ radians}$

Hence, the measure of $\theta =\dfrac{8}{7}\text{ radians}$ .

To convert it into degrees we multiply it with $\dfrac{180^{\circ}}{\pi}$

The measure of $\theta =\dfrac{8}{7}\times\dfrac{180^{\circ}}{\pi}$

$=(\dfrac{8\times180}{7\times3.14})^{\circ}=65.5141037307^{\circ}$

$\approx65.5^{\circ}$

Hence, the measure of $\theta=65.5^{\circ}$

8 0

3 years ago