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Andre45 [30]
3 years ago
13

Please help, this is a chapter on Derivatives.

Mathematics
2 answers:
Licemer1 [7]3 years ago
8 0
Ooop and in middle school :(
horsena [70]3 years ago
7 0

Answer:

Step-by-step explanation:

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Solve the system of linear equations by elimination −2x+3y=7 and 5x+8y=−2
forsale [732]
You would need to make them eliminate so I would multiply the entire first one by 2.5 to make the X's cancel out. So you would end up with -5X+7.5Y=17.5. The X's would cancel and you would be left with 15.5Y=15.5. So Y=1. Then replace Y into one of the equations. I'm going to use the top again. -2X+3(1)=7. Subtract 3 from both sides to get -2x=4. Divide both sides by negative 2 to get X=-2. So the solution would be (-2,1)
4 0
3 years ago
In the science club, 1/2 the students are freshman, 1/20 are sophomores, 1/10 are juniors, and 70 students are seniors. How many
Nataly [62]

So we are using the denominator 20.

1/2 of 20 would be 10.

So, out of 20 we multiply it by 10 since it is our numerator.

Now, we have converted it to 100/200.

Freshman : 100 students

Sophomores : 10 students

Juniors : 20 students

Seniors : 70 students

6 0
3 years ago
Complete this proof.
Alja [10]

Answer:

1) distributive property

2) subtraction property of equality

3) division property of equality

Step-by-step explanation:

Given : If \frac{1}{2}(8x+14)=39 , then x=8

To complete the proof :

Solution :

Following are the complete steps or proof of solving the given expression,

\frac{1}{2}(8x+14)=39  is given

4x + 7 = 39 - distributive property

4x = 32 - subtraction property of equality

x = 8 - division property of equality

3 0
3 years ago
Read 2 more answers
two teams are playing in the finals for an adult soft leauge. Each team has 13 players and the ages of the team members are show
Andrew [12]

Answer: C.

Step-by-step explanation:

6 0
3 years ago
The number 2400 is first increased by 30%.The value obtained is next decreased by 20%.Find the final number
kvasek [131]

<em>2400 is increased by 30%.</em>

so,

2400 + (30/100 * 2400)

2400 + (30 * 24)

2400 + 720

3120

<em>this number is decreased by 20%.</em>

so,

3120 - (20/100 * 3120)

3120 - (2 * 312)

3120 - 624

2496

therefore, the final number will be 2496.

3 0
3 years ago
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