All categories

3 years ago

Pleaseee help this is urgent!!! I need it in English! Please show all the work ! 14 points

Mathematics

1 answer:

zzz [600]3 years ago

3 0

Answer:

width = 40 feet, length = 90 feet

Step-by-step explanation:

length = 2w + 10

width = w

Perimeter = 260

Perimeter of rectangle = 2length + 2width

Sub the values into that equation:

260 = 2(2w + 10) + 2(w)

260 = 4w + 20 + 2w

260 = 6w + 20

260 - 20 = 6w

240 = 6w

w = 240/6

w = 40

So now we know the width of the garden is 40 feet.

To find the length, substitute the width into the length equation:

length = 2w + 10

length = 2(40) + 10

length = 90 feet

length = 90 feet, width = 40 feet

You might be interested in

The quotient of 21 and a number

Sever21 [200]

Answer:

21/n

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Write an equation of the line passing through the point (9,3) that is perpendicular to the line y = + 11.

sveta [45]

Answer:

9=3+11

Step-by-step explanation:

5 0

3 years ago

Expression A: 4x+ 5

ale4655 [162]

D. 4x+5 can be rewritten as 2 + 4x + 3 by the distributive property

7 0

2 years ago

Read 2 more answers

Solve the nonlinear system of equations. State the number of solutions.

WITCHER [35]

Answer:

Step-by-step explanation:

Hello,

Question 15

We can search x such that:

$x^2-4x+4=2x-5\\\\\text{*** subtract 2x-5 from both sides ***}\\ \\x^2-4x-2x+4+5=0\\ \\\text{*** simplify ***}\\ \\x^2-6x+9=0 \\ \\\text{*** we can notice a perfect square ***}\\ \\x^2 -2\cdot x \cdot 3 + 3^2=(x-3)^2=0\\\\\text{*** taking the root ***}\\\\x-3=0\\\\\large \boxed{\sf \ \ x=3 \ \ }$

There is 1 solution.

Question 16

Again, we search x such that:

$x^2-8x+15=2x-6\\\\\text{*** subtract 2x-6 from both sides ***}\\\\x^2-8x-2x+15+6=0\\\\\text{*** simplify ***}\\\\x^2-10x+21=0 \\ \\\text{*** we are looking for two roots where the sum is 10 and the product is 21 = 7 x 3 ***} \\\\x^2-7x-3x+21=x(x-7)-3(x-7)=(x-3)(x-7)=0\\\\\large \boxed{\sf \ \ x= 3 \ or \ x =7 \ \ }$ There are two solutions.

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

7 0

3 years ago

Y = 4x - 2<br> y = x + 3

arlik [135]

Answer:

y=3x+1

Step-by-step explanation:

if im correct you are working on elimination, so you pretty much sub. so the difference between -2 and 3 is positive 1; the difference between 4x and x is 3x

are you working on elimination?

8 0

3 years ago