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
bagirrra123 [75]
2 years ago
7

X+2y=19 and x+y=13 in substitution methood​

Mathematics
1 answer:
densk [106]2 years ago
3 0
X=7, y=6. that’s your answer!
You might be interested in
At a track meet, 50 people ran the 100-meter dash. 2 people finished in 11 seconds, 5 people finished in 12 seconds, 8 people fi
adoni [48]
You have to do a histogram here:

<span>11 sec: 2 people: probability is 2/50 = 1/25 = 0.04
12 sec: 5 people: probability is 5/50 = 1/10 = 0.1
13 sec: 8 people: probability is 8/50 = 4/25 = 0.16
</span>14 sec: 10 people: probability is 10/50 = 1/5 = 0.2
15 sec: 21 people: probability is 21/50 = 2.38
16 sec: 2 people: probability is 2/50 = 1/25 = 0.04
17 sec: 2 people: probability is 2/50 = 1/25 = 0.04
6 0
2 years ago
You invested $ 7000 between two accounts paying 3 % and 5 % annual? interest, respectively. If the total interest earned for the
natita [175]

Answer:

In the first account was invested \$3,000  at 3%

In the second account was invested \$4,000  at 5%

Step-by-step explanation:

we know that

The simple interest formula is equal to

I=P(rt)

where

I is the Interest Value

P is the Principal amount of money to be invested

r is the rate of interest  

t is Number of Time Periods

in this problem we have

First account

t=1 years\\ P=\$x\\ r=0.03

substitute in the formula above

I=x(0.03*1)

I=0.03x

Second account

t=1 years\\ P=\$(7,000-x)\\ r=0.05

substitute in the formula above

I=(7,000-x)(0.05*1)

I=350-0.05x

Remember that

The interest is equal to \$290

so

Adds the interest of both accounts

0.03x+350-0.05x=\$290

0.05x-0.03x=350-290

0.02x=60

x=\$3,000

therefore

In the first account was invested \$3,000  at 3%

In the second account was invested \$7,000-\$3,000=\$4,000  at 5%

7 0
3 years ago
Find the measure of &lt; AED for m &lt; BEC = 96
Strike441 [17]
I wish you would of put a picture but with what you gave me. if the angle is a straight line then you would just set it up like 96+x=180 bc a straight line ='s 180 and den subtract 96 from 180 which is 84 so x would = 84 if the angle is a supp. angle but til there's not a picture this might be wrong.
But i hope this helps have a nice nite!
5 0
3 years ago
Read 2 more answers
Which of these is a simplified form of the equation 8y + 4 = 6 + 2y + 1y?
larisa86 [58]
The first one would be the right one!
  
you just take all the y one side and the numbers on one side 
 so 8y+4= 6+3y

now 8y-3y= 6-4

therefore 5y = 2 
 
!!

3 0
3 years ago
Read 2 more answers
Please help!!! I am so confused!
Dafna11 [192]
The first one is c because if you put it at negative 1/8 then it is 0-1/8 or 1/8 away from zero

second one is
the reciprocal is the number that when multiiplied by the number you are trying to find the reciprocal of, you get +1 so the number you have is  2/7 so
2/7 times x=+1
multiply both sdies by 7/2 to clear fraction
x=+7/2
the reciprocal is +7/2 or +3 and 1/2 which is D
3 0
2 years ago
Read 2 more answers
Other questions:
  • How to change a precent to a decimals
    8·2 answers
  • What does the slope of the line represent?​
    14·1 answer
  • Monica went to the fair and paid for lunch as well as tickets to ride several rides the expression 1.5 X +9 represents her total
    5·1 answer
  • What is the product of (7X squared Y cubed)(3X to the fifth power Y to the eighth power)
    9·1 answer
  • Theresa bought three containers of tennis balls at $2.98 each. She had a coupon for $1 off. Her mom paid for half of the remaini
    5·1 answer
  • Provide steps please
    9·1 answer
  • Please, someone, help me
    6·1 answer
  • Help will mark as brainless thanks
    13·1 answer
  • Yasmin uses 4 cups of papaya juice for every 6 cups of pineapple juice. If Yasmi already has 24 cups of pineapple juice, how man
    11·1 answer
  • Write an inequality for the graph. Then, in words, describe all the values of that make the inequality true.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!