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
Verdich [7]
3 years ago
15

Use the distributive property to simplify the expression.

Mathematics
1 answer:
zepelin [54]3 years ago
6 0

Option D

Using the distributive property, -7(8x – 3) + x = -55x + 21

<em><u>Solution:</u></em>

Given that we have to use distributive property to simplify the given expression

Given expression is:

-7(8x – 3) + x

Let us first understand about distributive property

The distributive property lets you multiply a sum by multiplying each addend separately and then add the products.

<em><u>The distributive property is represented as:</u></em>

a(b + c) = ab + ac

Apply this property in given expression for -7(8x - 3)

-7(8x - 3) = (- 7 \times 8x) + (-7 \times -3)\\\\-7(8x - 3) = -56x +21

Apply the above result in given expression

-7(8x - 3) + x = -56x + 21 + x

Combine the like terms. Add -56x and x

-7(8x - 3) + x = -56x + 21 + x = -55x + 21\\\\-7(8x - 3) + x = -55x + 21

Thus the given expression is simplified. Option D is correct

You might be interested in
9. Travelling at 80 km/h, how far will a car go<br> in 45 mins?
AysviL [449]

Answer:

60

Step-by-step explanation:

distance=80*45/60

=80*0.75

=60km

3 0
3 years ago
Pls Help ASAP if you. Can
n200080 [17]
I think it’s b because it would make the most sense I believe but I’m really sorry if I’m wrong
5 0
3 years ago
The ratio of the number of fiction book is 9:4, the different between the number of fiction and non fiction is 245
Evgesh-ka [11]

Answer:

Step-by-step explanation:

The ratio of the number of fiction books is 9:4

 the difference between the number of fiction and nonfictionn is 245

so if the number of fiction books = 9x

then the number of nonfiction books = 4x

then difference = 9x-4x = 5x

the difference is given 245

then 5x= 245

x=\frac{245}{5}=49

number of fiction books =49×9=441

number of nonfiction books =49×4=196

brainly.com/question/27979540?answering=true&answeringSource=feedPublic%2FhomePage%2F12

#SPJ2

8 0
2 years ago
A submarine cruises underwater at 20 km/h and on
Darina [25.2K]

Answer:

System of equations:

20x + 30y = 650

x + y = 25

Time underwater = 10 hours

Time at the surface = 15 hours

Step-by-step explanation:

Let x = time underwater at 20 km/h.

Let y = time on the surface at 30 km/h.

speed = distance/time

distance = speed * time

distance underwater: 20x

distance on the surface: 30y

total distance: 650

20x + 30y = 650

total time: x + y

total time: 25

x + y = 25

20x + 30y = 650

x + y = 25

20x + 30y = 650

-20x - 20y = -500

--------------------------------

          10y = 150

              y = 15

x + y = 25

x + 15 = 25

x = 10

4 0
3 years ago
On Saturday, Joe runs m miles in 1.5 hours. On Sunday, he runs four times as far in six hours. If his average speed for two days
RideAnS [48]
If he runs 6 mph for 1.5 hours, he will run a total of 9 miles
8 0
4 years ago
Other questions:
  • The exponent indicates how many times the blank is used as a factor
    5·2 answers
  • Perform the indicated operation. 2 1/6 – 5 2/3
    7·2 answers
  • How do you find the apothem of a pentagonal pyramid?
    13·1 answer
  • Ratio of dolls to teddy bears is 6:5. There are 240 dolls, how many teddy bears?
    11·1 answer
  • How to convert $400.00 per week to a monthly figure
    14·2 answers
  • You are told that having a college education increases a person's earnings by 30% over their lifetime. A non-college graduate ea
    13·2 answers
  • Find the length and width<br> A= 20 cm2<br> P= 18cm
    8·1 answer
  • -9______ -7<br><br> A.&gt;<br> B.&lt;<br> C.=
    15·1 answer
  • Question 1:
    11·2 answers
  • My grade is 100% and I do a test worth 30% of my grade. If I score a 25% on my test, what would be my current grade?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!