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
statuscvo [17]
3 years ago
12

Please help me out here! I’ll give you brainlist ! :)

Mathematics
1 answer:
Butoxors [25]3 years ago
5 0

Answer:

a=9 b=2 c=7 d=9

Step-by-step explanation:

You might be interested in
Helppppppppppppppp plsssssssssss
mel-nik [20]

Answer:

y=5/1 - 3

Step-by-step explanation:

use rise over run

8 0
2 years ago
Yolanda is buying supplies for school. She buys n package of pencils at $1.40 per package and m pads of paper at $1.20 each. Wha
Oxana [17]
1.4n represents the price and number of packages of pencils. 1.2m represents the number of paper pads and the price
6 0
3 years ago
Matt and Anna Killian are frequent fliers on​ Fast-n-Go Airlines. They often fly between two cities that are a distance of 1980
Ymorist [56]

Answer:

y (plane speed) 400 miles/hr

x (wind speed)  40 miles/hr

Step-by-step explanation:

going into the wind make the plane flew 5,5 hours to get 1980 miles, implies the real travel speed was

1980 / 5,5 = 360 miles/hours, and at the same time is the result of:  

speed plane (y)  in direction A to B  plus wind speed (x) in direction B to A. Notice opposites direction speed, so we have:

y + (-x) = 360          (1)

The return fly  took 4,5 hours so 1980/4,5 = 440 miles/ hours as the result

Y + x = 440             (2)

We have a two equation with two variables system, It could be solved for any of the procedures. We will use the substitution method.

From equation      (1)        y + (-x) = 360         y  - x = 360      y = 360 + x    (1)

In the second equation    

y + x = 440         then we replace y for its value as function of x

(360 + x ) + x = 440

Solving for x        360 + 2x = 440      or    2x = 440 – 360        

 x   (440 - 360)/2

 x = 40 miles/hr

 X (wind speed ) = 40 miles/hr

And replacing the value of x in eq. (1)        y = 360 + 40 = 400

Y (plane speed) = 400 miles /hr

3 0
3 years ago
Roger can make 3 bird houses in 5 hours. Which proportion could be used to determine how many bird houses Roger could build in 2
Nadya [2.5K]

Answer:

the answer should be 12

Step-by-step explanation:

6 0
3 years ago
Given that sin(30)=1/2 and cos(30)=(sqrt3)/2, use trigonometric identities to find the value of cot(30)
Anit [1.1K]

<u>Your question: </u>given that sin(30)=1/2 and cos(30)=(sqrt3)/2, use trigonometric identities to find the value of cot(30)

The correct answer would be D \sqrt{3}

5 0
3 years ago
Other questions:
  • Write an equation of the ellipse with foci at (0,+12) and vertices at (0,+13)
    8·2 answers
  • Now, suppose one of the roots of the polynomial function is irrational. The roots of the function are 2, <img src="https://tex.z
    10·2 answers
  • naomi has earned $54 mowing lawns the past two days. she worked 2 1/2 hours yesterday and 4 1/4 hours today. if naomi is pains t
    9·1 answer
  • PLEASE help. I have posted this question many times and no one is answering.
    15·1 answer
  • There are 7 ushers and 11 technicians helping at the Harper Middle School fall play. What is the ratio of technicians to all hel
    15·1 answer
  • White Kittens
    8·1 answer
  • Please help me this is hard
    13·2 answers
  • What are two variables that might be positively related to academic success?
    11·1 answer
  • A spinner with four sections is spun 30 times.
    13·2 answers
  • II. Identify the following terms described in each item. Quantitative &amp; Qualitate. It can be separated into different catego
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!