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kotegsom [21]
3 years ago
7

Solve: y=-3x+5 5x-4y=-3

Mathematics
1 answer:
Dafna1 [17]3 years ago
7 0
Use y=-3x+5 on this equation 5x-4y=-3

5x-4(-3x+5) = -3
5x+12x-20 = -3
17x=17
x=1

y=-3x+5
for x=1;
y=-3+5
y=2
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What is 2x8 and 3x5 AND
USPshnik [31]

Answer:

2x8=16

3x5=15

Step-by-step explanation: I hope you have/had an amazing day<3

7 0
2 years ago
Read 2 more answers
Pls help I’m failing
GuDViN [60]

Answer:

-7

Step-by-step explanation:

you divide both sides by -2 and 14/-2 is equal to -7

6 0
3 years ago
Please answer the question below
Maurinko [17]

Answer:

The rate of change in the submarine's elevation is 26.0 feet per second.

Step-by-step explanation:

She begins 151 feet below sea level

Thus, her initial point is y₁ = 151 feet below sea level

i.e. at t₁=0 seconds, y₁ = 151 feet below sea level

After descending for the 3 seconds, she is 229 feet below sea level.

Thus, her second point is y₂ = 229 feet below sea level after 3 seconds

i.e. at t₂=3 seconds, y₂ = 229 feet below sea level

The rate of change is basically the slope. Thus, the rate of change can be obtained by taking the slope.

slope = rate of change = (y₂ - y₁)/(t₂ - t₁)

                                      = (229 - 151) / (3 - 0)

                                       = 78/3

                                       = 26.0

Therefore, the rate of change in the submarine's elevation is 26.0 feet per second.

6 0
3 years ago
Can someone help me please
Leni [432]
80 because you find the area of the triangle and subtract it from the area of the rectangle to get 80
5 0
3 years ago
5. For the data in the table below, find the sum of the absolute deviations for the predicted values
Kipish [7]

Based on the absolute deviations and the predicted values, the sum of absolute deviations will be <u>4.8.</u>

<h3>What would be the sum of absolute deviations from predicted values?</h3>

This can be found as:

= ∑ (Observed value - Predicted value)

The observed values are given in the table and the predicted values will be calculated using y = 3.6x - 0.4.

Solving gives:

=  [3 - (3.6 x 1 - 0.4)] + [7 - (3.6 x 2 - 0.4)] + [ 9 - (3.6 x 3 - 0.4)] + [14 - (3.6 x 4 - 0.4)] + [15 - (3.6 x 5 - 0.4)] + [21 - (3.6 x 6 - 0.4)] + [25 - (3.6 x 7 - 0.4)]

= 0.2 + 0.2 + 1.4 + 0 + 2.6 + 0.2 + 0.2

= 4.8

Find out more on absolute deviation at brainly.com/question/447169.

4 0
2 years ago
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