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
vodka [1.7K]
3 years ago
14

-0.4a + 3 = 7 a = plz help

Mathematics
1 answer:
Papessa [141]3 years ago
4 0

Answer:

a = -10

Step-by-step explanation:

-0.4a + 3 = 7

subtract 3 from each side

-0.4a + 3-3 = 7-3

-.4a = 4

Divide each side by -.4

-.4a/ -.4 = 4/-.4

a = - 10

You might be interested in
Calculate the density of a block of metal with a volume of 12.5 cm3 and mass of 126.0 g​
WITCHER [35]

Answer:

Gave the answer in chemistry section)

8 0
3 years ago
NO LINKS HELP PLEASE PLEASE EXPLAIN ​
Iteru [2.4K]

Answer:  1,278

Step-by-step explanation: 2(18x18)+2 1/2(18x14)

p.e.m.d.a.s. 18x18= 324       18x14= 252

2x324= 648      2.5x252=630

648+630 =1,278

4 0
3 years ago
Numbers 4,5,6 !! Please help
aleksandrvk [35]

Answer:

4) VW= 23

5) VW= 12

6) VW= 75

Step-by-step explanation:

4)

VU= 31

WU= 8

subtract 8 from 31

VW= 23

5)

UW= 18

UV= 6

subtract 6 from 18

VW= 12

6)

UV= 30

WU=45

add 30 and 45

VW= 75

7 0
3 years ago
Is x=-1 a solution of: -4-4x<-x-2
vodka [1.7K]

Answer:

yes it's a solution. I think. I don't really know this

5 0
3 years ago
$0.78 less than the normal price Right now it you buy 7 of them it Cookies are on sate! Today each cookie costs will only cost y
Blizzard [7]
Let p = the normal price.
Then 7(p - .75)= 2.80
Divide by 7: p - .75 = .40 and p = 1.15
4 0
3 years ago
Other questions:
  • Explaining 27 hundreds and 83 tenths
    11·1 answer
  • Barb is making a bead necklace.She strings 1 white bead,then 3 blue beads,then 1 white bead,and so on.Write the numbers for the
    7·1 answer
  • Find the measure of angle AOE in the diagram below. <br> Help will be appreciated!
    10·2 answers
  • How do u simplify 12 8/5
    9·1 answer
  • Please help!!
    13·1 answer
  • 2. Convert 28 Liters to milliliters
    11·1 answer
  • 50 × 8000 = 4 × 10^ what is the unknown exponent
    15·2 answers
  • 1. Find the next three in the sequence. 2,7,12,17
    8·2 answers
  • !!!PLEASEEEE HELP!!!!!
    14·1 answer
  • Its really confusing ​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!