1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Svetradugi [14.3K]
3 years ago
8

Solve each system by substitution

Mathematics
1 answer:
Thepotemich [5.8K]3 years ago
4 0

Step-by-step explanation:

{9x+3y=-36

y=-3x-21

9x-9x-36=-36

y=-3x-21

x=0

y=-21

You might be interested in
The shadow of a 60 foot pole is a 100 feet long. What is the angle of evaluation from the end of the shadow to the top of the po
Lilit [14]

Answer:

θ = 36.86°

Step-by-step explanation:

Given that,

The shadow of a 60 foot pole is a 100 feet long.

We need to find the angle of elevation from the end of the shadow to the top of the pole.

Height, h = 60 foot

Hypotenuse, H = 100 feet

Using trigonometry to find it.

\sin\theta=\dfrac{\text{Height}}{\text{Hypotenuse}}\\\\\sin\theta=\dfrac{60}{100}\\\\\theta=\sin^{-1}(\dfrac{60}{100})\\\\\theta=36.86^{\circ}

So, the angle of elevation is 36.86 degrees.

4 0
3 years ago
Jane's family divided up their garden so that 3/4 of the garden will have vegetables. Jane and her sister will plant 3/4 of the
vodka [1.7K]

9/16 of the family garden

We can use an equation to solve this:

(3/4) * (3/4) = (9/16)

8 0
3 years ago
Help due now pleaseee
DENIUS [597]

Answer:

d

Step-by-step explanation:

base² + Altitude² = Hypotenuse²

 x² + 9² = 13²

x² + 81 = 169

       x² = 169 - 81

      x² = 88

      x = \sqrt{88}

     x = \sqrt{2*2*2*11}=2\sqrt{2*11}\\\\x=2\sqrt{22}

6 0
3 years ago
Read 2 more answers
Geoff earns 10% commission on his total sales at work..To pay for a concert ticket, Geoff needs to earn $135 in commission. What
statuscvo [17]

Answer:

$1350

Step-by-step explanation:

Percentage commision earned = 10%

Amount needed to pay for concert = $135

Hence, total sales for the week must be :

Let total sales = x

10% of total sales = $135

10/ 100 * x = $135

0.1x = $135

x = $135 / 0.1

x = $1350

6 0
3 years ago
Use the given area to find XY.
galina1969 [7]
I think the answer is 2.6666

i might b wrong tho
8 0
3 years ago
Other questions:
  • The area of a rectangle is 10 cm^2. One side of the rectangle is x cm. Express the perimeter of the rectangle in terms of x and
    14·1 answer
  • A design team for an electric car company finds that under some conditions the suspension system of the car performs in a way th
    13·1 answer
  • <img src="https://tex.z-dn.net/?f=10%20%5Cdiv%20%20%5Csqrt%7B6x%7D%20" id="TexFormula1" title="10 \div \sqrt{6x} " alt="10 \div
    8·2 answers
  • Which ratio is not equivalent to the other three 2/3 12/15 6/9 or 18/37
    12·1 answer
  • Find p(-4) and p(2) for the function p(x)=11x^5-11x^4-5x^2+15x-8
    13·1 answer
  • 40 is what percent of 180
    10·2 answers
  • The questions are in the picture<br> (I’LL GIVE BRAINLEST) <br> PLEASEEEEEEEEEEE HELPPPPPPP
    9·1 answer
  • The difference between two numbers is 8. Twice the number is 4 more than the larger number. What is the smaller number?
    9·1 answer
  • Geena is meeting her brother at a cafe on Bradford Rd and Blanco Rd. She is currently on the corner of Lafayette Ave. And Blanco
    12·1 answer
  • Which line on the graph below has a slope of 0?​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!