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3 years ago

Solve and graph. c – 10 + 3c -2 B. C 3 D. C < -2

Mathematics

2 answers:

Radda [10]3 years ago

7 0

I think that since their is no = sign you can’t have just one nimber because you can’t fully simplify... I got 4c-12

natima [27]3 years ago

7 0

Answer: I got 4c- 12 too

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Solve for x and y. Write any radical answers as "sqrt( )" or "squareroot( )".

LuckyWell [14K]

Answer:

x = 4 and y = 8

Step-by-step explanation:

This is a special right triangle with angle measures 90-60-30 degrees

The side lengths are like the following :

The side length that sees 90 degrees is represented with a

The side length that sees 60 degrees is represented with a $\sqrt{3}$

The side length that sees 30 degrees is represented with 2a

now, the angle measure that sees 60 degrees is given as 4 $\sqrt{3}$ so we understand that a is = 4 that's how we find the value of x and y

5 0

3 years ago

Two quadrilaterals are similar. The length of the row longest sides of the first quadrilateral are 40in and 60in. The lengths of

Andreyy89

Answer:

The sides of the first quadrilateral are 60 in, 40 in, 30 in and 12,5 in

The sides of the second quadrilateral are 24 in, 16 in, 12 in and 5 in

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional, and this ratio is called the scale factor

Arrange the sides of each quadrilateral from largest to smallest

First quadrilateral Second quadrilateral

Longest side=60 in Longest side=c in

Second side=40 in Second side=16 in

Third side= a in Third side= 12 in

Fourth side=b in Fourth side=5 in

$\frac{60}{c}=\frac{40}{16}=\frac{a}{12}=\frac{b}{5}$

Find the value of c

$\frac{60}{c}=\frac{40}{16}$

$c=60(16)/40$

$c=24\ in$

Find the value of a

$\frac{40}{16}=\frac{a}{12}$

$a=40(12)/16$

$a=30\ in$

Find the value of b

$\frac{40}{16}=\frac{b}{5}$

$b=40(5)/16$

$b=12.5\ in$

7 0

3 years ago

A wagon is on sale for 20% off. The sale price of the wagon is $114. What was the original price of the wagon assuming no sales

ivann1987 [24]

Answer:

$136.8

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

The perimeter of rectangular paper is 100 and are is 600 square cm. Find the different of length and breagth of the paper ?

ArbitrLikvidat [17]

The difference between the length and the breadth of the rectangular paper, having a perimeter of 100 cm, and an area of 600 square cm, is 10 cm.

In the question, we are given that the perimeter of rectangular paper is 100 cm and the area is 600 square cm.

We are asked to find the difference of length and breadth of the paper.

We assume the length and the breadth of the paper to be l cm and b cm respectively.

By the formula of the perimeter, the perimeter of the rectangular paper is 2(l + b) cm.

But, the value for the perimeter of the paper is given to be 100 cm.

Thus, we get an equation, 2(l + b) = 100, or, l + b = 50.

Also, its area = lb square cm.

The value for the area is given to be 600 square cm.

Thus, the equation we get is, lb = 600.

We are asked to find the difference between the length and the breadth of the paper, that is, l - b, assuming l >b.

Now, we know that, (x - y)² = (x + y)² - 4xy.

Putting l as x, and b as y, we get:

(l - b)² = (l + b)² - 4lb.

Substituting the values of l + b = 50, and lb = 600, we get:

(l - b)² = (50)² - 4(600),

or, (l - b)² = 2500 - 2400,

or, (l - b)² = 100,

or, l - b = √100,

or, l - b = 10.

Thus, the difference between the length and the breadth of the rectangular paper, having a perimeter of 100 cm, and an area of 600 square cm, is 10 cm.

Learn more about the area and the perimeter of a rectangle at

brainly.com/question/24571594

#SPJ9

8 0

2 years ago

Caleb earns points on his credit card that he can use towards future purchases. He earns four points per dollar spent on flights

Doss [256]

Given:
Flights: 4 points per dollar
Hotels: 2 points per dollar
Other: 1 point per dollar.
Total spent = $9,480
Points earned = 14,660

Let
x = money spent on flights
y = money spent on hotels
z = money spent on other purchases.

Because the money spent on flights was $140 more than twice the money spent on hotels, therefore
x = 2y + 140 (1)

Total charges were $9,480, therefore
x + y + z = 9480 (2)

Total points earned was 14,660. Therefore
4x + 2y + z = 14660 (3)

Subtract (2) from (3).
4x + 2y + z - (x + y + z) = 14660 - 9480
3x + y = 5180 (4)
Substitute (1) into (4).
3(2y + 140) + y = 5180
7y + 420 = 5180
7y = 4760
y = 680
From (1), obtain
x = 2y + 140 = 2*680 + 140 = 1500
From (2), obtain
z = 9480 - (x + y) = 9480 - (1500 + 680) = 7300

Answer:
$1,500 was spent on flights,
$680 was spent on hotels,
$7,300 was spent on other purchases.

8 0

4 years ago