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
lara31 [8.8K]
3 years ago
8

Ernesto tried to determine the solution for the system of equations using substitution. His work is shown below.

Mathematics
2 answers:
Blababa [14]3 years ago
6 0
I think its step 3 but i dont sure sorry
Tomtit [17]3 years ago
4 0
It is step 3 because 3(y+7) = 3y+21, so the 3 wasn't distributed to ALL of the values on the parentheses.
You might be interested in
Kayla spent half of her weekly allowance on clothes. To earn more money her parents let her clean the oven for $4. What is her w
marysya [2.9K]
In this question, the first information that we get is that Kayla spent half of her weekly allowance in clothes. On cleaning the oven Kayla gets $4. Finally Kayla is left with $12.
Let us assume that the weekly allowance of Kayla = x
Amount of allowance saved after buying clothes = x/2
 Then we can go for the equation
x/2 + 4 = 12
x + (4 * 2) = 12 * 2
x + 8 = 24
x = 24 -8
   = 16
So we can now see that the weekly allowance of Kayla is $16
5 0
3 years ago
Round 45,621 to the nearest hundred.
Schach [20]

Answer:

The answer is 45600 as 621 is less than 650 and should be rounded down.

4 0
2 years ago
Read 2 more answers
Simplify 4x^2+36/4x×1/5x
I am Lyosha [343]

The simplified version of the expression is this: 5(x² + 9) ÷ x.

3 0
3 years ago
Yall please help me i need to turn this in asap​
Monica [59]

Answer:

A)9

Step-by-step explanation:

so if we see the figure the angle are vertical opposite

and so are equal ,

3x+8=35

3x=35-8

3x=27

x=27/3

x=9

hope it helps

8 0
3 years ago
Please Someone I need Help With 1-8
lina2011 [118]
5) k/35=3/7 : cross multiply
    35*3=7k   : simplify
    105=7k     : divide both sides of  the equation by 7
    k=15

6) 3/t=18/24  :cross multiply
     18t=24*3  :simplify
      18t=72   : divide both sides of the equation by 18
       t=4

7) 10/8.4 = 5/m  :cross multiply
    10m=5 * 8.4  :simplify
     10m=42   :divide both sides by 10
      m=4.2
      




8 0
3 years ago
Other questions:
  • Ramon plays outfield. In the last game, 15 balls were hit in his deriction. He caught 12 of them. What is the experimental proba
    15·1 answer
  • Can you help me please??
    5·2 answers
  • In triangle ABC, what is the measure of angle C?
    11·1 answer
  • A cooler contains eleven bottles of sports drink: four lemon-lime flavored and seven orange flavored. you randomly grab a bottle
    7·1 answer
  • I need help with question 12
    10·2 answers
  • Find the value of x if the points (x,5) and (3,7) lie on the line whose slope is 4/7
    9·1 answer
  • Here are two offers for batteries.
    5·1 answer
  • In the diagram below, which angle would you use for the angle of elevation/depression?
    11·1 answer
  • Need help fast thanks
    5·1 answer
  • Show that (x+5)^2-(x-5)^2=20x
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!