3 years ago

6*5 0487684768436843684786468456489kmkl/68 25468

Mathematics

1 answer:

Lera25 [3.4K]3 years ago

6 0

6× 5 = 30 totally answer

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<img src="https://tex.z-dn.net/?f=3%28y%20-%209%29%20%3D%2030" id="TexFormula1" title="3(y - 9) = 30" alt="3(y - 9) = 30" align=

Ira Lisetskai [31]

Answer:

y=19

Step-by-step explanation:

3(y - 9) = 30

3y - 27 = 30

3y = 30 + 27

3y = 57

y = 19

brainliest?

4 0

3 years ago

Without drawing the graphs, find the points of intersection of the lines: a 7x+4y=23 and 8x–10y=19

emmainna [20.7K]

Answer:

(3,0.5)

Step-by-step explanation:

The given system has equations:

$7x + 4y = 23 \\ 8x - 10y = 19$

Let us multiply the second equation by 4 and the first equation by 10.

$70x + 40y = 230 \\ 32x - 40y = 76$

We add both new equations to get:

$102x = 306 \\ x = \frac{306}{102} = 3$

Put x=3 into the first equation and solve for y.

$7(3) + 4y = 23 \\ 21 + 4y = 23 \\ 4y = 23 - 21 \\ 4y = 2 \\ y = \frac{1}{2}$

The point of intersection is the solution to the system of equation which is (3,0.5)

8 0

3 years ago

9f+7f i need the answer pleaseeeee

astraxan [27]

Answer:

it's either 32 or 16f I don't know though

3 0

2 years ago

Read 2 more answers

2/3x-5=x-8 can you please show your work too? I need the answer ASAP.

Anna [14]

Answer x=9
Pls mark brainliest

4 0

3 years ago

36__3__12__6__1 = 36

KatRina [158]

Answer:

36 * 3 - 12 * 6 * 1 = 36

Step-by-step explanation:

36 * 3 - 12 * 6 * 1 = 36

3 0

3 years ago