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
morpeh [17]
3 years ago
5

Solve the following system of equations using the substitution method.

Mathematics
1 answer:
Novay_Z [31]3 years ago
7 0
X=2y
2x+5y=9

substitute the x=2y into the second equation
2(2y)+5y=9
multiple the 2y by 2. 4y+5y=9
combine like terms. 9y=9
divide the 9 out from both sides. y=1
plug the y back into the first equation
x=2(1)
multiply. x=2

your answer is: x=2
y=1
You might be interested in
Maria rotated the triangle 90 degrees clockwise about the origin. What is the new triangle?
padilas [110]

Answer:

A’B’C’

Step-by-step explanation:

Well if triangle ABC is rotated 90 degrees clockwise around the origin it will turn right to create triangle A’B’C’.

4 0
3 years ago
How can i learn times faster like 3's til 12's in Times i have a hard time in my times can someone tell me how i can learn them
iogann1982 [59]
To get better at 12's:
Write down on your paper your 1's facts in column skip 5 and 11 going to 14 (a vertical line - line that goes up and down). To the right of that column, write your two's facts 0 to 8 and repeat again. Then you will have your 12's! Should look as follows

12's:

0    0 = 12 x0
1    2 = 12 x1
2    4 = 12 x2
3    6 = 12 x3
4    8 = 12 x4
6    0 = 12 x5
7    2 = 12 x6
8    4 = 12 x7
9    6 = 12 x8
10  8 = 12 x9
12  0 = 12 x10
13  2 = 12 x 11
14  4 = 12 x 12
5 0
3 years ago
Shirts with the a school's mascot were printed, and the table shows the number of people who bought them the first, second, thir
goldenfox [79]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

The graph could represent the data shown in the table is <span>the graph goes perfectly diagonal starting from zero, up to the other corner of the graph</span>
6 0
3 years ago
Please help me with this??
Ludmilka [50]

Answer:

c, d and f are rational numbers

Step-by-step explanation:

c) 3\sqrt{5}*2\sqrt{5}=3*2*\sqrt{5*5} = 3*2*5 = 30\\\\\\d)  \dfrac{3\sqrt{5}}{2\sqrt{5}}= \dfrac{3}{2}\\\\\\f)  \dfrac{2\sqrt{5}}{3\sqrt{5}}= \dfrac{2}{5}

6 0
2 years ago
PLEASE HELP ME ON THIS
Whitepunk [10]
F(t)=262(1.6)^t
Initially the tundra has: f(0)=?
t=0→f(0)=262(1.6)^0
f(0)=262(1)
f(0)=262 caribou

Answer:
Initially, the tundra has 262 caribou, and every 1 year, the number of caribou increases by a factor of 1.6


4 0
3 years ago
Other questions:
  • Find the axis of symmetry and the vertex and graph the following: f(x)=(x+2)(x-4)
    7·1 answer
  • Your company manufactures hot water heaters. The life spans of your product are known to be normally distributed with a mean of
    13·1 answer
  • Can somebody tell me the answer of the question: if a human can eat 5% more than a animal how much can it a animal ??
    11·2 answers
  • Abi takes a job with a starting salary of $100,000 for the first year. She earns a 3% increase each year. To the nearest dollar,
    15·2 answers
  • Please help all of it, tysm
    12·1 answer
  • A tree planted today has a height of 5 feet and grows one foot each month.
    13·1 answer
  • At a hardware store, a tool set normally costs $80. During a sale this week, the tool set costs $12 less than usual. What percen
    8·2 answers
  • Steve reaches into a bag with 5 marbles 3 yellow marbles and 2 green marbles and randomly selects one the he puts the marble bac
    9·1 answer
  • If i multiply X 3times and add 4 it will be equal to multiply X 2times and add 5. what number is X?
    15·1 answer
  • An engineering firm designs a custom hexagonal screw for a computer board. A sketch of the top of the screw is below. To the nea
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!