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
storchak [24]
3 years ago
9

y = 4x – 10 y = 2 what is the solution to the system of equations? a.(3, 2) b.(2, 3) c.(–2, 2) d.(2, –2)

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
4 0
Substitution!
<span>y = 4x – 10...(1)
y = 2...(2)

You have y=2 here, substitute it in equation (1),
</span><span>y = 4x – 10
</span><span>2 = 4x – 10
</span>Add both sides by 10
12=4x
Divide both sides by 4
x=3

We have x=3, and y=2. ==> (x,y) = (3,2)
You might be interested in
Thanks for who helps me
iris [78.8K]

Answer:

x = 25

Step-by-step explanation:

(4x - 35) = 180 - 115

4x - 35 = 65

4x = 100

x = 25

4 0
3 years ago
IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. Mensa is an international society that has
andrew11 [14]

Answer:

130.81

Step-by-step explanation:

We solve this question using z score formula

z = (x-μ)/σ,

where from the question:

x is the raw score = ?

μ is the population mean = 100

σ is the population standard deviation = 15

We are told in the question that:

Mensa is an international society that has one and only one qualification for membership: a score in the top 2% on an IQ test.

The top 2% means a score in the 98th percentile

The z score of the 98th percentile = 2.054

Hence:

2.054 = x - 100/15

Cross Multiply

2.054 × 15 = x - 100

30.81 = x - 100

x = 30.81 + 100

x = 130.81

The IQ score that one should have in order to be eligible for Mensa is the score of 130.81

7 0
3 years ago
What is the surface area of the pyramid
Setler79 [48]

Answer:

The surface area is 31.85 in.

Step-by-step explanation:

8 0
3 years ago
Please help meh no links and please give the right answer.
Tju [1.3M]

Answer:

562 feet of paper

Step-by-step explanation:

multiply 113 by 3 and thats the amount of paper Tommy used to make three 6 inch sandwiches, then add 223. And thats the answer.

4 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Ba%283%20%2B%20a%29%7D%7B3%7D%20%20%5Cleqslant%20%20%5Cfrac%7Bz%28a%20-%201%29%20%
Sindrei [870]
A= 15+z+ square root 17(z+15)/ z-2
z=2a^2/(a-1)^2 + 30a/(a-1)^2 - 15/(a-1)^2
6 0
4 years ago
Other questions:
  • 36 + m = 54<br> 54 - 36 = m<br> 36 + 54 = m<br> 54 / 36 = m<br> 36 x 54 = m
    8·1 answer
  • Which of the following represents the factorization of the trinomial below?
    9·2 answers
  • (4,?) is on the line y=2x+3. Find the other half of the coordinate
    11·1 answer
  • I need help plsss ;(((
    8·1 answer
  • A library contains 2,000 books. There are 3 times as many
    5·1 answer
  • The side of a box has length x feet, and another side has length (x-7) feet. What value of a would produce an area of 18 square
    13·1 answer
  • Tools -
    8·1 answer
  • Asap
    9·1 answer
  • 16x^2-40x+25 factor the expression
    5·1 answer
  • how would you solve it's for algebra 2B I'm just a little stuck thanks so much for your help hope it's not a waste of time
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!