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kramer
3 years ago
9

Petro was given this system of equations. -14x-2y=24 14x+8y=-12

Mathematics
1 answer:
Svetllana [295]3 years ago
4 0

Pedro made mistake in step 3.

He supposed to plug in y = 12 into the y in the equation to solve for x

Should be:

-14x - 2(2)=24

-14x - 4 = 24

-14x = 28

    x = -2

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400 grams = 480 ml<br> so,<br> 180 grams = ?
Viefleur [7K]

Answer: 216 ml

Step-by-step explanation:

400 grams = 480 ml

180 grams = ?

Since the value of 180 grams in milliliters is unknown, let the unknown be Z

Thus, 400 grams = 480 ml

180 grams = Z

To get the value of Z, cross multiply

Then, Z x 400 grams = 480ml x 180 grams

400Z = 86400

Divide both sides by 400

400Z/400 = 86400/400

Z = 216

Thus, 180 grams is equal to 216 milliliters.

5 0
3 years ago
Read 2 more answers
10) Circle the two fractions that are equivalent in each set 1/4 3/12 2/6​
amid [387]

Answer:

1/4 and 3/12

Step-by-step explanation:

1/4=0.25

3/12=0.25

8 0
3 years ago
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An arrow is shot straight up from a cliff 58.8 meters above the ground with an initial velocity of 49 meters per second. Let up
Papessa [141]

Answer:

s(t)=-9.8t^2+49t+58.8

Step-by-step explanation:

We have been given that an arrow is shot straight up from a cliff 58.8 meters above the ground with an initial velocity of 49 meters per second. Let up be the positive direction. Because gravity is the force pulling the arrow down, the initial acceleration of the arrow is −9.8 meters per second squared.

We know that equation of an object's height t seconds after the launch is in form s(t)=-gt^2+v_0t+h_0, where

g = Force of gravity,

v_0 = Initial velocity,

h_0 = Initial height.

For our given scenario g=-9.8, v_0=49 and h_0=58.8. Upon substituting these values in object's height function, we will get:

s(t)=-9.8t^2+49t+58.8

Therefore, the function for the height of the arrow would be s(t)=-9.8t^2+49t+58.8.

6 0
4 years ago
PLEASE HELP! SUPER EASY
liubo4ka [24]

Answer:

1.trapezoid

parallelogram

3 0
3 years ago
Solve 2(5x + 6) &lt; x - 15 + 9x.​
ipn [44]

Answer:

Hope that was helpful for you! Good luck.

3 0
4 years ago
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