Ask question

Ask question

All categories

3 years ago

15

In the equation below, solve for y: 2x+5y=12

1 answer:

Liula [17]3 years ago

7 0

Answer:

y = $\frac{12-2x}{5}$

Step-by-step explanation:

Given

2x + 5y = 12

Isolate the term in y by subtracting 2x from both sides

5y = 12 - 2x ( divide both sides by 5 )

y = $\frac{12-2x}{5}$

You might be interested in

When a bakery opened this morning the ratio of pineapple muffins to the number of mango muffins was 3:2. After 144 pineapple muf

Elena L [17]

$3x-\ pineapple\\
2x-\ mango\\\\
after\ selling\ 144\ pineapple:\\
3y-\ pineapple\\
5y-\ mango\\\\
3x-144=3y\ \ | add\ 144\\
2x=5y\\\\
3x=3y+144\ \ \ | divide\ by\ 3\\
2x=5y\\\\
x=y+48\\2x=5y\\\\
2(y+48)=5y\\
2y+96=5y\ \ \ | subtract\ 2y\\
96=3y\ \ \ | divide\ by\ 3\\
32=y\\
x=32+48=80\\\\
There\ were\ 240\ pineapple\ muffins.
$

6 0

3 years ago

A sector with a radius of 8 cm has an area of 56pi cm2. What is the central angle measure of the sector in radians?

Maurinko [17]

Answer:

$\frac{7\pi}{4}$ .

Step-by-step explanation:

Given information:

Radius of circle = 8 cm

Area of sector = $56\pi\text{ cm}^2$

Formula for area of sector is

$A=\dfrac{1}{2}\theta r^2$

where, r is radius and $\theta$ is central angle in radian.

Substitute $A=56\pi$ and r=8 in the above formula.

$56\pi=\dfrac{1}{2}\theta (8)^2$

$56\pi=\dfrac{64}{2}\theta$

$56\pi=32\theta$

$\dfrac{56\pi}{32}=\theta$

$\dfrac{7\pi}{4}=\theta$

Therefore, the measure of the sector in radians is $\frac{7\pi}{4}$ .

6 0

3 years ago

Which of the binomial is a factor of this trinomial x2-7x-44?

yan [13]

I hope this helps you

x^2-7x-44

x -11

x +4

(x-11)(x+4)

6 0

3 years ago

In a lab experiment, 2400 bacteria are placed in a petri dish. Due to the conditions, the

o-na [289]

Answer:

38,400 bacteria

Step-by-step explanation:

Because there are 24 hours in a day, it will double 4 times

2400times 2 equals 4800 (1st)

4800 times 2 equals 9600 (2nd)

9600 times 2 equals 19200 (3rd)

19200 times 2 equals 38400 (4th)

5 0

3 years ago

This year, Carmen watched 70 movies. She thought that 21 of them were very good. Of the movies she watched, what percentage did

spin [16.1K]

Carmen thought 30% of the movies were good.

I found the percent by dividing 21 by 70

21/70= .3

.3= 30%

8 0

4 years ago