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
IrinaK [193]
2 years ago
11

Evaluate the expression when a=- 7 and x=3. a-8x

Mathematics
2 answers:
inn [45]2 years ago
8 0

Answer:-31

\(31\)

Step-by-step explanation:

Substitute: \(7 - 8 \times (- 3)\)

Remove the parentheses:\(7 + 8 \times 3\)

Calculate the product or quotient:\(7 + 24\)

Calculate the sum or difference:\(31\)

Answer: \(31\)

FinnZ [79.3K]2 years ago
3 0

Answer:

-31

Step-by-step explanation:

a - 8x will change to (-7) - 8(3) = -31

You might be interested in
Which numbers will produce a rational number when multiplied by 1/5
labwork [276]
A rational number times a rational number=rational numberan irrational number times a rational number=irrational number
remember, a rational number is a number that can be written as a/b where a and b are integers and b≠0


A is irrational because the pattern doesn't repeatb is irrational because it's a crazy square rootC is irrationalD is not irrational, it is a fraction 

answer is D

 
3 0
3 years ago
Each of the 6 people in mandy's family orders 2 tacos. Each taco cost 3$. What is the total cost of the tacos?
MatroZZZ [7]

Answer:

36

Step-by-step explanation:

6 x 2= 12

12 x 3= 36

7 0
2 years ago
I need to find x in these two problems in the picture.
forsale [732]

Answer:

for the first one do 15 divided by 10 and the second one 18 divided by 8.

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Hep asappppppppppppp
schepotkina [342]

Answer:

(6 , -1)

Step-by-step explanation:

2x+  y  = 11   ----------------(I)

y = 11 - 2x --------------------(II)

\frac{1}{2}x - 5y = 8

Multiply the whole equation by 2

2*\frac{1}{2}x -2*5y = 2*8

x - 10y = 16 --------------------(III)

Substitute y = 11- 2x in equation (III)

x - 10(11 - 2x) = 16

x - 110 + 20x = 16

21x - 110 = 16

21x = 16 +110

21x = 126

x = 126/21

x = 6

Plugin x = 6 in equation (II)

y = 11 - 2*6

y = 11 - 12

y = -1

5 0
2 years ago
The price of a shirt was $38. It was reduced by 20% and then again by 10%.what is the final price of the shirt
tiny-mole [99]
First you would take 20% off the orignal price giving you 30.4$ after that you take 10% of 30.4 to get 27.36$.
5 0
3 years ago
Read 2 more answers
Other questions:
  • Someone please help me! thank you so much
    6·1 answer
  • How to find the degree of each monomial?
    12·1 answer
  • I need help on this question plz
    8·1 answer
  • The length and width of a rectangle are in a 3:5 ratio. The perimeter of the rectangle is 64. What are the length and width of t
    9·1 answer
  • A rectangular solar panel has a length that is 12 inches shorter than 3 times its width. If the perimeter of the panel is 160 ​i
    14·1 answer
  • 27Kg 1/4g + 67Kg 1/3g =
    15·1 answer
  • Given quadrilateral QRST - quadrilateral HIJK, QR = 10, QT = 6, and HI = 8, find KH.
    7·2 answers
  • What’s the value of this expression?<br><br> 6x4-(5+3) dividend by 2
    15·1 answer
  • Two companies rent boats by the hour. The total cost, in dollars, c, depends on the number of hours, h.
    6·1 answer
  • A driver travels the first 240 km of a 600-km journey at an average speed of 60 km/h. If the time taken for the whole journey is
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!