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Arisa [49]
3 years ago
15

I need help with thid

Mathematics
1 answer:
7nadin3 [17]3 years ago
5 0

Answer:

10 cm

Step-by-step explanation:

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ANYONE...........help​
KATRIN_1 [288]

Answer:

  • 1 cm

Step-by-step explanation:

<u>Sides of the picture added margin:</u>

  • l = 8 + 2x
  • w = 5 + 2x
  • A(margin) = 30 cm²

<u>Solution</u>:

  • A(margin) = Total area - A(picture)
  • (8 + 2x)(5 + 2x) - 5*8 = 30
  • 4x² + 10x + 16x + 40 - 40 - 30 = 0
  • 4x² + 26x - 30 = 0
  • 2x² + 13x - 15 = 0
  • x = (-13 + √(13² + 2*4*15))/4
  • x = (-13 + 17)/4
  • x = 1 cm

Note. The other root is ignored as negative.

3 0
3 years ago
An employer may conduct an aptitude test to check for what
AysviL [449]
Your ability to solve problems.
Hope this helps!

7 0
3 years ago
Read 2 more answers
Solve this problem on paper using all four steps. A girl scout troop sold cookies. If the girls sold 5 more boxes the second wee
Varvara68 [4.7K]
This is a problem where you should make an equation.
Let's say x is the first week. It would mean
First Week : x
Second Week : x + 5
Third Week : 2(x+5)
You need to add these up to make your equation. Your equation will look something like this :
x+x+5+2(x+5) = 431
Now you simplify.
2x+5+2x+10 = 431
4x+15 = 431
4x = 416
x = 104
That means they sold 104 Boxes in the First Week.
104+5=109
So they sold 109 Boxes the Second Week.
109 x 2 = 218
And they sold 218 Boxes the Third Week.

I hope I was useful!
3 0
3 years ago
Read 2 more answers
Eight less than four times the quantity of five more than twice a number is 36 what is the number
OleMash [197]
4(2x+5)-8 = 36
8x+20-8 = 36
8x = 24
x = 3
5 0
3 years ago
What is 2(8x-3) -4(3x-5)=19
vladimir1956 [14]

Answer:

5/4

Step-by-step explanation:

2(8x-3)-4(3x-5)=19

16x-6-12x+20=19

16x-12x-6+20=19

4x+14=19

4x=19-14

4x=5

x=5/4

7 0
3 years ago
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