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
Elis [28]
3 years ago
9

If a=4 and b= -6, work out 5a-2b

Mathematics
2 answers:
Tema [17]3 years ago
8 0
It’s 32!

5a = 5 x 4 = 20
2b = 2 x - 6 = -12

20 - -12 = 32 ( two negatives make a positive!)

Lelu [443]3 years ago
7 0

Answer:

32

Step-by-step explanation:

5(4)-2(-6) = 20 plus 12 = 32

You might be interested in
Joan has 294 black marbles. Joan has 42 times more black marbles than Dan. How many black marbles does Joan has?
lara [203]
Joan has 294 marbles
dan has 7 marbles
5 0
4 years ago
Graph 6x-2y=2 ,9x-3y=1
enot [183]

It's a linear function. We need only two points to draw a graph.

We choose any values of x and calculate the value of y.

6x-2y=2\qquad|-6x\\\\-2y=-6x+2\qquad|:(-2)\\\\y=3x-1

for x= 0 → y = 3(0) - 1 = 0 - 1 = -1 → (0, -1)

for x = 2 → y = 3(2) - 1 = 6 - 1 = 5 → (2, 5)

9x-3y=1\qquad|-9x\\\\-3y=-9x+1\qquad|:(-3)\\\\t=3x-\dfrac{1}{3}

for x = 0 → y = 3(0) - 1/3 = 0 - 1/3 = -1/3 → (0, -1/3)

for x = 2 → y = 3(2) - 1/3 = 6 - 1/3 = 5 2/3 → (2, 5 2/3)

4 0
3 years ago
A 120° sector of a circle has an area of 67 cm². To the nearest centimeter what is the diameter of the circle?
qaws [65]

Answer:

degree = 120°

A =67 cm²

d=?

note : diameter= 2×radius

area of a circle = πr²

67=22/7 ×r²

67×7=22r²

469=22r²

r²=469/22

r²=21.32

r=4.62

diameter=2 × radius

d= 2× 4.62

d=9.24

d=9

I hope it helps :)

3 0
3 years ago
For 4 weeks, William volunteered as a helper for swimming classes. The first week, he volunteered for 8 hours. He volunteered fo
frutty [35]
10.25 hours on average

8+12+12+9=41

41/4= 10.25
7 0
3 years ago
I WILL GIVE BRAINLEST!!! 20 POINTS!!!
Alenkasestr [34]
It the answer would be 51.41
3 0
3 years ago
Read 2 more answers
Other questions:
  • A local band is holding a concert. The price of a ticket to the concert is $15. The band must sell enough tickets to cover at le
    7·1 answer
  • If 20 Sunday newspapers weigh 18 pounds, how many pounds do 30 Sunday newspapers weigh? 27 pounds 28 pounds 33 pounds 38 pounds
    11·2 answers
  • What is the volume of a cone with a radius of 5 inches and a height of 8 inches?
    14·1 answer
  • The volume of a rectangular prism is 72 cubic centimeters. The prism is 2 centimeters wide and 4 centimeters high. What is the l
    7·1 answer
  • How many solutions are there to the equation n^2-13n=-40
    14·2 answers
  • 0.9d-2.1f<br> Helpp!!❗‼️
    10·1 answer
  • Kayden is a stunt driver. One time, during a gig where she escaped from a building about to explode, she drove at a constant spe
    13·1 answer
  • What is 4 x 4? Please help me! I dont understand multiplacation.
    13·2 answers
  • The hypotenuse of a right triangle is twice the length of one of its legs. Th length of the other leg is three feet. Find the le
    13·1 answer
  • In her free time, isabelle likes to read. she kept track of the number of pages in each book she read last summer. this box plot
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!