3 years ago

Plz help!! If DF = 170, find the value of x. Then find DE and EF.

Mathematics

2 answers:

Firlakuza [10]3 years ago

8 0

Answer

DE= 3x + 20 = 86
EF= 2x + 40=84

Step-by-step explanation:

DE: 3x + 20

EF: 2x + 40

DE+ EF= DF

3x+20 +2x + 40 = 170

5x + 60 =170

5x= 110

x= 22

DE= 3x + 20 = 86
EF= 2x + 40=84

Snowcat [4.5K]3 years ago

6 0

Answer:

x = 22

DE = 86

EF = 84

Step-by-step explanation:

DF=DE+EF

170= (3x +20) + ( 2x+40)

170 = 5x + 60

5x = 170 - 60

5x = 110

x = 110 / 5

x = 22

DE =3x + 20 = 3(22) + 20 = 66 + 20 = 86

EF= 2x + 40 = 2(22) + 40 = 44 + 40 = 84

I hope I helped you^_^

You might be interested in

What are three equivalent ratios 14/2

Taya2010 [7]

Answer:

7/1
21/3
532/76

Step-by-step explanation:

Reduce the ratio to lowest terms, then multiply numerator and denominator by any same value to get another equivalent.

$\dfrac{14}{2}=\dfrac{2\cdot 7}{2\cdot 1}=\dfrac{7}{1}\\\\=\dfrac{3\cdot 7}{3\cdot 1}=\dfrac{21}{3}\\\\=\dfrac{76\cdot 7}{76\cdot 1}=\dfrac{532}{76}$

3 0

3 years ago

Please give answers for #1, #2, #3, and #4 please help <br> ill mark brainliest.

Ira Lisetskai [31]

Answer:

Find y output

Step-by-step explanation:

Just took test

5 0

3 years ago

Paul started work at company b ten years ago at the salary of 30,000 starting year and 2400 for yearly salary increase at the sa

Cloud [144]

Sharla, earned 2,000 more than Paul

6 0

3 years ago

Help me please!<br> If you get it right, I’ll will brainliest u!!

juin [17]

Answer:

c) if x=2, then 4x=8

Step-by-step explanation:

4 0

3 years ago

A gym floor has a perimeter of 615 feet What is the<br> perimeter of the floor in yards?

bogdanovich [222]

Answer:

205 yards

Step-by-step explanation:

One yard is 3 feet

Divide 615 feet by 3 to get 205

4 0

3 years ago