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
iris [78.8K]
3 years ago
12

Evaluate 4a + 7b + 3a − 2b for a = 5 and b = −3.

Mathematics
1 answer:
blsea [12.9K]3 years ago
5 0

Answer:

<h2>20</h2>

Step-by-step explanation:

4a+7b+3a-2b\qquad\text{combine like terms}\\\\=(4a+3a)+(7b-2b)\\\\=7a+5b\qquad\text{put a = 5 and b = -3 to the expression}\\\\7(5)+5(-3)=35-15=20

You might be interested in
What is the slope of the line from November to December
Wittaler [7]
It is (D) I believe. From what I can see it is going down from 1.40 to 1.39 from November to December which is a loss of 0.01 
3 0
3 years ago
Robin earned $4,320 in 9 weeks and worked 40 hours in each week. How much did he earn per hour?
quester [9]
Divide 4,320 between 9 and you'll get 408 per week. divide 408 between 40 and you'll get how much he makes per hour
6 0
3 years ago
Read 2 more answers
A taxi driver makes $24.50 in an hour, but uses $6.75 worth of gas during that time. What will the driver's total earnings for t
sergiy2304 [10]
The answer is $17.75, though usually the taxi company will pay for gas that the driver uses.
6 0
3 years ago
8th one answer this pls​
GuDViN [60]

Answer:

terminating

Step-by-step explanation:

if the given fraction is terminating then prime factors of denominator should be 2^n x 5^m where m and n are whole number

5=1x5=2^0x5^1

so it is of form 2^nx5^m

8 0
2 years ago
What is the perimeter?<br> Help plz....And no links!! I repeat No links!!!
Nana76 [90]

Answer:

48 cm

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Other questions:
  • What is a simpler form of the radical expression? sqrt 36g^6 A. 36|g^3| B. 36g^4 C. 6|g^3| D. 6g^4
    11·2 answers
  • Which function represents the graph of h(x)=2|x+3|−1 after it is translated 2 units right?
    7·2 answers
  • ANSWER ASAP I WILL GIVE BRAINLIEST!!!! Match each equation with the number that makes it true.
    7·1 answer
  • This is found by multiplying pi by the radius squared
    9·1 answer
  • What is the sum of the zeros of the equation y = 2x2+5x−3
    14·1 answer
  • A set of weights includes an 8 lb. barbell and 6 pairs of weight plates. Each pair of plates weighs 15 lb. If x pairs of plates
    11·1 answer
  • The fish tank was $50 yesterday, and today it<br> has gone up by 25%... What's the new price?
    10·1 answer
  • Plsss help on my test
    7·1 answer
  • Angle r° = 2w°. What is the measure of angle r°?<br><br> 120°<br> 240°<br> 143°<br> 286°
    11·1 answer
  • Find the magnitude of the
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!