All categories

3 years ago

5x + 9y = 10 -x +2=7/3y

Mathematics

1 answer:

Airida [17]3 years ago

8 0

Answer:

7/3y

Step-by-step explanation:

5x + 9y = 10

-x +2=7/3y

You might be interested in

Find the value of x in the triangle.

Musya8 [376]

The answer is 38 degrees because for every triangle, the angles add up to 180 and the small square on the triangle represents it is a right triangle, which has 90 degrees. 38 + 52 + 90 = 180

6 0

3 years ago

2 3 + 6^{2} ÷ 9 i need help with this one

creativ13 [48]

Answer: 7

Step-by-step explanation:

3+6^(2) / 9

3 + 36 / 9

3 + 4

5 0

3 years ago

If (y) varies directly with x, and y=3 when x=0.2, what is the value of (y) when x=1?

Luba_88 [7]

_Brainliest if helped!!

since it varies directly, we form an equation ,
Y =kX where k is a constant
use the points given to find K ,
3 =0.2k , k = 15

So to get final answer,

when x = 1
y = kx, = 1(15)
y= 15

Hence when x=1, < y = 15 >

4 0

3 years ago

Read 2 more answers

Please help me with this, it'd be highly appreciated and I may mark you brainiest!

alina1380 [7]

Answer:6/a^3

Step-by-step explanation:

3 0

3 years ago

Hi, can you please help me answer this direct proportion question?

Oksanka [162]

Answer:

X = 100

Step-by-step explanation:

In proportion questions, they want you to multiply one of the sides by a variable, (i usually represent it with K) and then change the proportion sign to an equal.
This is because proportional means they have a ratio between them, with one side increasing by "k" for each increase in the other side.

Multiply the left by k, so $y = \frac{k}{\sqrt{x} }$
we know that y= 5, for x = 36, so sub this in the equation
$5 = \frac{k}{\sqrt{36} }$
simplify $5 = \frac{k}{6 }$
re-arrange for k, <u>k = 5*6 = 30</u>
now we know k, we can create the real equation, $y = \frac{30}{\sqrt{x} }$
sub in 3 as y
$3 = \frac{30}{\sqrt{x} }$
<u>x = 100</u>

4 0

2 years ago