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Lubov Fominskaja [6]
3 years ago
6

Please help answer this​

Mathematics
2 answers:
ELEN [110]3 years ago
8 0

Answer:

4) 7

5) -12

Step-by-step explanation:

4) 5x+2= 37

   5x= 37-2

    x= 35/5

     x= 7

5) -6x-7= 65

    -6x= 65+7

      x= 72/-6

       x= -12

brilliants [131]3 years ago
8 0

Answer:

X= 7

X= -12

Step-by-step explanation:

5x+2=37

5x+2-2=37-2

5x\5=35/5

X=7

-6x-7=65

-6x-7+7=65+7

-6x=72

-6x/-6=72/-6

X=-12

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Consider the formula for the average velocity, v, of a moving particle. In the formula, d, and dy represent the distance travele
il63 [147K]

Answer:

Option C.

Step-by-step explanation:

Note: The question and options are  not in correct form.

Let the correct question is "Consider the formula for the average velocity, v, of a moving particle. In the formula, d1 and d2 represent the distance traveled by the particle at times t1 and t2 respectively.

v = (d2 - d1)/(t2 - t1)  

Which of the following equations is equivalent to the formula for velocity?

A. t1=v(d2-d1)-t2

B. d1=v (t2-t1)-d2

C. d2=v(t2-t1)+d1

D. t2=v(d2-d1)+t1 "

The given formula is  

v=\dfrac{d_2-d_1}{t_2-t_1}

On cross multiplication, we get

v(t_2-t_1)=d_2-d_1

Add d_1 on both sides.

v(t_2-t_1)+d_1=d_2-d_1+d_1

v(t_2-t_1)+d_1=d_2

Since, d_2=v(t_2-t_1)+d_1, therefore, the correct option is C.

5 0
3 years ago
The seventh grade enrollment at Main Middle School reduced from 615 students to 492 students. By What percentage was the number
Contact [7]

Answer:

492 *100/625 =80 %

Step-by-step explanation:

Where [*]= Multiply

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3 years ago
Point C is on the graph of the function y = x2 – 3. Its x-coordinate is 4. Which ordered pair gives the location of point C? A.(
Scilla [17]

Answer:

B (4, 2+3)

Step-by-step explanation:

To do this you fill in x with 4 so the equation becomes y = (4)2 - 3

You then solve to y = 8 - 3

then 8 - 3 is 5.

Making the coordinates (4, 5) and in this case with the answers (4, 2+3)

5 0
3 years ago
Read 2 more answers
Needd help please and thank you!! It’s 1/E just in case you couldn’t see that! Thx!
Margaret [11]

Answer:

option A

The base is e^-1

Step-by-step explanation:

Given in the question a function, f(x) = (1/e)^{x}

This function can also be write as.

f(x) =(e^{-1})^{x}

by using Negative Exponent Rule

x^{-n}=\frac{1}{x^{n}}

This says that negative exponents in the numerator get moved to the denominator and become positive exponents.

5 0
3 years ago
michael wittry has been investing inhis roth IRA retirement account for 20 years. Two years ago his account was worth $215,658.
Over [174]
Let's say

a = 215,658

ok... so.. he first lost 1/3 of that

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\\\\\\
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\\\\\\
\cfrac{2a}{3}+\cfrac{2a}{3}\cdot \cfrac{1}{2}\implies \cfrac{2a}{3}+\cfrac{2a}{6}\implies \cfrac{4a+2a}{6}
\\\\\\
\cfrac{6a}{6}\implies \boxed{a}\implies 215,658


so, his nickname might just be even steven, because, he ended up with the same original amount after the 1/2 bump.
4 0
3 years ago
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