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
Alexxx [7]
3 years ago
14

X=2y+7 3x−2y=3 solve by substitution

Mathematics
1 answer:
vazorg [7]3 years ago
8 0

Answer: x= -2

Step-by-step explanation:

You might be interested in
1. You are standing on top of a ridge using a clinometer trying to figure out how far your dog has wandered off in
olga_2 [115]

<u>Given:</u>

It is given that the ridge is 360 inches tall.

<u>Assumptions:</u>

Assume you are 170.1 cm tall which equals 67 inches tall, the height from your eye to the floor is 360+67 = 427 inches.

The distance from your eye level to the bottom of the ridge is 427 inches.

Assume the angle A is 60°.

<u>To find the distance from you to your dog.</u>

<u>Solution:</u>

A right-angled triangle can be formed where the angle is 60°, the distance between you and the dog is the hypotenuse of the triangle and your height from the floor is the adjacent side of the triangle.

Assume the hypotenuse of the triangle measures x inches.

To determine the length of the hypotenuse, we determine the cos of the angle.

cos \theta = \frac{adjacent side}{hypotenuse} .

cos A = \frac{427}{x} , x = \frac{427}{cos60} , cos60=0.5.

x=\frac{427}{0.5} = 854.

So if the ridge is 360 inches tall and you are 67 inches tall and the angle A is 60°, the distance between your dog and you is 854 inches.

3 0
3 years ago
Find the slope \mathrm{m}m of the line in the graph below. ​ ​ \mathrm{m} =m=
yulyashka [42]

Answer:

m=4 or m=\frac{4}{1}

Step-by-step explanation:

To find slope we use the slope formula

m=\frac{y_{2} -y_{1} }{x_{2} -x_{1} }

Two points on the line we can classify are (3,4) and (4,8)

5 0
2 years ago
At the craft store, Mark bought a bag of blue and brown marbles. The bag contained 20 marbles, and 30% of them were blue. How ma
kykrilka [37]

Answer:

6 blue marbles

Step-by-step explanation:

20 marbles * .30 are blue = blue marbles

20 * .30 = 6 blue marbles

5 0
3 years ago
WILL GIVE BRAINLIEST! Please help me quickly with math!
Inga [223]
4 units hope this helps

8 0
4 years ago
Read 2 more answers
What is 8/14 in lowest terms?
kumpel [21]
8/14 in lowest terms is 4/7

6 0
3 years ago
Read 2 more answers
Other questions:
  • Which number is between 0.5 and 5/8 ?<br><br> 3/11 <br> 1/11 <br> 12/45 <br> 7/45
    14·1 answer
  • What is 1,000 to the power of 4?
    7·1 answer
  • Olive wants to invite friends over for some ice cream. She has a total of 8 pints of ice cream in her freezer. If she splits eac
    8·1 answer
  • (8b+7)+(6×-4)+(5c+8)
    13·1 answer
  • Pls help
    10·1 answer
  • If KL = LM and KJ = JM, find m ∠KJL<br><br> please, i really need your help!
    13·1 answer
  • 9y= 5/7<br> solve as a fraction
    12·2 answers
  • Joyce paid $60.50 for an item at the store that was 45 percent off the original price. What was the original price?
    11·1 answer
  • Please help :) will mark brainliest
    12·1 answer
  • Please help will give brainliest answer ​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!