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zhannawk [14.2K]
3 years ago
10

Solve for y 2/5x + y = 3

Mathematics
1 answer:
Crank3 years ago
3 0

Answer:

y=-2/5x +3

Step-by-step explanation:

You get the y to be alone on it's side of the equal sign.

So you subtract 2/5 x from that side and what you do to one side you have to do to the other.

You get: y=-2/5x +3

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Substitution 4x+y=-5 -2x-8y= -20
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Answer:

35 over 6 an 10 over 3

Step-by-step explanation:

7 0
2 years ago
The ages of two brothers are in the ratio two to three, but in eight years, the ratio of Their ages will be three to four. what
Gnoma [55]
O - older one
y - younger one

\dfrac{y}{o}=\dfrac{2}{3}\\
\dfrac{y+8}{o+8}=\dfrac{3}{4}\\\\
2o=3y\\
3o+24=4y+32\\\\
2o-3y=0\\
3o-4y=8\\\\
-8o+12y=0\\
\underline{9o-12y=24}\\
o=24



It's 24.
8 0
3 years ago
A local deli sells 4-inch sub sandwiches for $2.95. It has decided to sell a "family sub" that is 50
liubo4ka [24]

Answer:

36.875

Step-by-step explanation:

4 0
3 years ago
In UVW, the measure of W=90°, WU = 32 feet, and UV = 51 feet. Find the
Ber [7]

Answer:

38.9

Step-by-step explanation:

Sin x = opposite/hypotnuse

Sin-1 = 32/51

=38.86

=38.9

8 0
3 years ago
A recipe for beef stew calls for 1 pound of beef and 3 potatoes the recipe is doubled to include 2 pounds of beef and 6 potatoes
Lerok [7]

Pounds of beef and potatoes are in ratio or proportion of \frac{1}{3} .

<u>Step-by-step explanation:</u>

Correct Question: A recipe for beef stew calls for 1 pound of beef and 3 potatoes. The recipe is doubled to include 2 pounds of beef and 6 potatoes. Which proportion represents the situation?

We have , A recipe for beef stew calls for 1 pound of beef and 3 potatoes , i.e.

Number of beef stew calls = 1

Number of potatoes = 3

Now , The recipe is doubled to include 2 pounds of beef and 6 potatoes i.e. for every 2 pounds of beef we have 6 potatoes

⇒ 2/6

⇒ \frac{2}{6}

⇒ \frac{2}{2(3)}

⇒ \frac{1}{3}

Therefore , Pounds of beef and potatoes are in ratio or proportion of \frac{1}{3} .

4 0
3 years ago
Read 2 more answers
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