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3 years ago

Solve for x and y -4x + 9y = 9 x - 3y = -6

Mathematics

1 answer:

baherus [9]3 years ago

7 0

Answer:

Solve for x:

$x = \frac{9(y - 1)}{4}$

Solve for y:

$y = \frac{4x}{9} + 1$

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Plz help me If u do u are smart and gain 10 pts

Neporo4naja [7]

Answer:

White:1.2kg

green:2kg

black:2.8

Step-by-step explanation:

Total ratio = 3+5+7=15

white :

$= \frac{3}{15} \times 6$

$= 1.2$

green:

$\frac{5}{15} \times 6$

$= 2$

black:

$\frac{7}{5} \times 6$

$= 2.8$

4 0

2 years ago

What is the answer to y=-2(-3/2)-9

steposvetlana [31]

Answer:

-6

Step-by-step explanation:

y = -2 x -3/2 - 9

3 - 9 = -6

8 0

2 years ago

Read 2 more answers

Which of the following inequalities matches the graph? (1 point)

Lilit [14]

Y is less than or equal to 0

8 0

3 years ago

Using the functions presented in the example, how much can Cam expect to earn if he sells all the corn produced on 1.5 acres?

12345 [234]

Answer:

Cam expect to earn if he sells all the corn produced on 1.5 acres is $8725.

Step-by-step explanation:

Given : $C(a)=7500a-1500$ , $M(C)=0.9C- 50$ and $M(C(a))=6750a-1400$

To find : How much can Cam expect to earn if he sells all the corn produced on 1.5 acres?

Solution :

$C(a)=7500a-1500$

Substitute a=1.5,

$C(1.5)=7500(1.5)-1500$

$C(1.5)=11250-1500$

$C(1.5)=9750$

Now, taking function $M(C)=0.9C- 50$

Substitute C=9750,

$M(9750)=0.9(9750)- 50$

$M(9750)=8775- 50$

$M(9750)=8725$

Now, taking function $M(C(a))=6750a-1400$

Substitute a=1.5,

$M(C(1.5))=6750(1.5)-1400$

$M(C(1.5))=10125-1400$

$M(C(1.5))=8725$

Therefore, Cam expect to earn if he sells all the corn produced on 1.5 acres is $8725.

8 0

3 years ago

Find the value of X

olchik [2.2K]

<h3>Answer: 112</h3>

=========================================================

Explanation:

The angle adjacent to the 146 degree angle is 180-146 = 34 degrees.

In other words, the angles 34 and 146 combine to 180. These angles are supplementary.

The tickmarks on this triangle tell us it is isosceles. The angles opposite the congruent sides are congruent angles. So the unmarked interior angles (not marked x) are 34 degrees each.

Now use the fact that any triangle has its interior angles always add to 180

x+34+34 = 180

x+68 = 180

x = 180-68

x = 112

5 0

3 years ago