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
Fudgin [204]
3 years ago
10

5a+8+(-2a)=-7 I need help with this question especially because of the parenthesis

Mathematics
2 answers:
8_murik_8 [283]3 years ago
6 0

Answer:

a = -5

Step-by-step explanation:

Simplify both sides:

5a + 8 + (-2a) = -7

(5a + -2a) + 8 = -7

3a + 8 = -7

Start solving for a by subtracting 8 from both sides

3a+8-8 = -7 - 8

3a = -15

Next, divide both sides by 3

3a/3 = 1

-15/3 = -5

a = -5

Mashcka [7]3 years ago
3 0

Answer:

5a+8+(-2a)=-7

5a+8-2a=-7

5a-2a=-7-8

3a=-15

3a/3=-15/3

a=-5

You might be interested in
The cafeteria at Midtown Middle school surveyed 575 students about their favorite food. Determine the number of students that Re
Helen [10]
You would put this into a fraction
so for the salad
\frac{20}{100} =  \frac{?}{575}
and for the fruit
\frac{24}{100} =  \frac{?}{575}
cross multiply and
1. salad: 20% = 115 students
2. Fruit: 24% = 138 students
8 0
3 years ago
Keenan gives tisha half of his strawberries. tisha keeps 4 of the strawberries she got from keenan and gives the rest to suvi. w
Ilya [14]
At start Keenan has x strawberries. He gives Tisha x/2. Then Tisha keeps 4 strawberries and gives Suvi the rest. If y is the number of strawberries that Suvi gets:
y = x/2 - 4.
For example: Keenan has 20 strawberries. He gives Tisha 10 and Tisha gives Suvi 6:
6 = 20/2 - 4 
6 = 10 - 4 
3 0
3 years ago
The speed of light is 3 x 10 8 meters per second (m/s). What is the speed of light in miles per year (mi/yr)
GenaCL600 [577]

Answer:

the  speed of light in miles per year is 5.88 × 10^12 mi / year

Step-by-step explanation:

The computation of the speed of light in miles per year is shown below;

As we know that

1 m/sec = 1 ÷ 1609  mi/sec

3 ×10^8 m/sec = (3 × 10^8) ÷ (1609)

= (3 × 10^8 × 60 × 60 × 24 × 365) ÷ (1609)

= 5.88 × 10^12 mi / year

Hence, the  speed of light in miles per year is 5.88 × 10^12 mi / year

8 0
3 years ago
If it takes you seven minutes to read a page in a book, how many words can you read in one minute? WHAT NECCESSARY PIECE OF INFO
Neko [114]

Answer:

The number of words per page.

Step-by-step explanation:

We're given the time per page. The book could have 10 words or it could have 1,000 words. We wouldn't know until given that information.

7 0
3 years ago
Read 2 more answers
Natalie is making doll customers. Each costume has 4 buttons that coast 3 € each and a zipper that costs 7€. How much does she s
otez555 [7]
24euro on zipper
and 24euro on button
7 0
3 years ago
Other questions:
  • Which symbol correctly compares these fractions? 3 8 ___ 7 16
    10·1 answer
  • What is 8+9=z<br> z=?<br> please help
    13·2 answers
  • Rachel is dividing -30 by a negative integer. The quotient is also an integer. Which statement describes the quotient Rachel sho
    5·2 answers
  • 5*5<br> sjstrysjxryjxryj
    9·2 answers
  • Mega Movies hosted a film premiere on Friday night. They charged $9 for adults and $6 for children. One hundred thirty-nine adul
    14·2 answers
  • A candy bag contains 12 green candies and 1 blue candy. Preston will choose 2 candies from the bag without looking. Which answer
    10·1 answer
  • The graph shows a proportional relationship between the cost of carpet cleaning (y-axis) and the area of the carpet (x-axis).
    9·1 answer
  • 50 points!!! Will mark brainliest if correct!! Pls help me!!
    7·1 answer
  • Shiva uses 8.2 pints of blue paint and white paint to paint her bedroom walls. 3/4 of this amount is blue paint, and the rest is
    7·1 answer
  • Which evidence from the text best supports the idea that women astronauts are not unusual anymore?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!