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ANTONII [103]
3 years ago
14

I have 3 questions for math

Mathematics
1 answer:
Airida [17]3 years ago
7 0

Answer:

  1. no question content
  2. (x, y) = (1/2, 4)
  3. (x, y) = (2, 10)

Step-by-step explanation:

1. No link, no question

__

2. Divide the first equation by 2 and substitute for y using the expression in the second equation.

  2x +(4x+2) = 5

  6x = 3 . . . . . . . . . subtract 2

  x = 3/6 = 1/2 . . . . divide by2

  y = 4(1/2) +2 = 4 . . . . substitute into the equation for y

The solution is (x, y) = (1/2, 4).

__

3. The solution using a graphing calculator is (x, y) = (2, 10). (see attached)

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Lisa walked 8 km more than Tim. Lisa walked twice as far as Tim. How far did each walk?
valentinak56 [21]
x-\ Tim's\ distance\\\\
x+8-\ Lisa's\ distance\\\\
2x=x+8\ \ |Subtract\ x\\
2x-x=8\\
x=8\ \ -Tim\\
x+8=8+8=16- \ Lisa\\\\Lisa\ walked\ 16\ km\ and\ Tim\ 8km.

6 0
3 years ago
Write 625 using exponents in as many ways as you can?
Arlecino [84]

Answer:

See below

Step-by-step explanation:

625 = 25^2, or (5^2)^2 = 5^4

8 0
3 years ago
Read 2 more answers
For the triangles to be congruent by hl, what must be the value of x? 8 9 17 34
lora16 [44]

Using equations we know that the value of x needs to be (E) 4 to make HL congruent to AC.

<h3>What are equations?</h3>

A mathematical equation is a formula that uses the equals sign to represent the equality of two expressions.

The point-slope form, standard form, and slope-intercept form are the three main types of linear equations.

So, HL is a hypotenuse that will be congruent to the hypotenuse AC.

We know that HL is 3x + 3.

Ac is 15.

Then the equation will be:

3x + 3 = 15

Now, solve the equation to get x as follows:

3x + 3 = 15

3x = 15 - 3

3x = 12

x = 12/3

x = 4

Therefore, the value of x needs to be (E) 4 to make HL congruent to AC.

Know more about equations here:

brainly.com/question/28937794

#SPJ4

Correct question:
For the triangles to be congruent by hl, what must be the value of x?

a. 8

b. 9

c. 17

d. 3

e. 4

8 0
1 year ago
3.7 pounds of meat costs $20.35. What is the price per pound?<br>​
Zepler [3.9K]

Answer:

$5.5 per pound of meat

Step-by-step explanation:

$20.35 ÷ 3.7 = $5.50

Hope this is helpful

3 0
3 years ago
A gardener is installing fence around his garden. Let x represent the width of the garden, in feet. The perimeter of the garden
ivanzaharov [21]

Answer:

 (8) x+8  in (8)

Step-by-step explanation:

width times length

3 0
3 years ago
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