The difference of 17 and five times a number.

Answers

Answer 1

Answer: That is impossible to know, it can be any number. We need one more fact.

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Translate the phrase into an algebraic expression.
3 times b

Answers

Answer:

Step-by-step explanation:

It`s just . . . 3b lol

When numbers and variables multiply, they are put in the form of (integer)(variable). They phrase can only be further simplified if there is a number substitution for b.

Y = x - 2 and y=-2x +7

Answers

$\huge\boxed{\boxed{\bold{(3, 1)}}}$

$\hrulefill$

I'm assuming you need to find the solution to this system of equations (where the lines intersect).

We can use the substitution method to solve this system. Take the value of $y$ from the second equation and substitute it into the first:

$-2x+7=x-2$

Add $2x$ to both sides of the new equation:

$7=3x-2$

Now add $2$ to both sides of the equation:

$9=3x$

Divide both sides by $3$ :

$\boxed{3}=x$

Now let's solve for $y$ by substituting the known value of $x$ into the first equation:

$y=3-2$

Simplify using subtraction:

$y=\boxed{1}$

This means our solution is:

$\large\boxed{(3, 1)}$

Answer:

x = 3, y = 1

Step-by-step explanation:

Solve the following system:

{y = x - 2 | (equation 1)

y = 7 - 2 x | (equation 2)

Express the system in standard form:

{-x + y = -2 | (equation 1)

2 x + y = 7 | (equation 2)

Swap equation 1 with equation 2:

{2 x + y = 7 | (equation 1)

-x + y = -2 | (equation 2)

Add 1/2 × (equation 1) to equation 2:

{2 x + y = 7 | (equation 1)

0 x+(3 y)/2 = 3/2 | (equation 2)

Multiply equation 2 by 2/3:

{2 x + y = 7 | (equation 1)

0 x+y = 1 | (equation 2)

Subtract equation 2 from equation 1:

{2 x+0 y = 6 | (equation 1)

0 x+y = 1 | (equation 2)

Divide equation 1 by 2:

{x+0 y = 3 | (equation 1)

0 x+y = 1 | (equation 2)

Collect results:

Answer: {x = 3, y = 1

A school is having a canned food drive. Each class is challenged to collect 200 cans. If there are c classes in the school, which equation could be used to find the total number of cans, T, the school will collect if each class meets the challenge? A. T= c/200 B. T=200/c

C. 200c

D. 200+c

Answers

The answer would be C. 200c. This is because in order to find the answer you multiply the number of cans (200) by the number of classes (c) to get the total (t) for the school. Therefore, your equation would be: T= 200c

4k^2(-3k^2 - 4k + 5) A. -12k^4 - 16k^3 + 20k^2
B. 12k^4 - 16k^3 + 9k^2
C. -12k^3 + 20k
D. k^4 + 9k^2

Answers

Hello,

Answer A for 4k²*5=20k²
====================

Factor this please: x^4-9x^2+20

Answers

Your answer is (x+2)(x-2)(x^2-5)

x = ± √5 = ± 2.2361 x = 2 x = -2

Gabriela buys a basket of coconuts on sale for $22 before tax. the sales tax is 12%.

Answers

After tax, it would be: 22 + 22*12/100 = 22+2.64 = $24.64

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