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
Gnom [1K]
2 years ago
12

HELP NEEDED!!! WILL GIVE 5 STARS!

Mathematics
1 answer:
Jlenok [28]2 years ago
3 0
270=2b + a
420=2a + 3c (you have to use trial and error for this)

B = 120
A = 30
C = 120

Just to check
270 = (2x120) + 30
420 = (2x30) + (3x120)
You might be interested in
Caleb is growing a plant in science class the plant grows 0.4 centimeters each week how much will the plant grow in 3 weeks
melisa1 [442]
If the plant grows 0.4 cm per week....in 3 weeks, it will have grown :
3 * 0.4 = 1.2 cm
5 0
3 years ago
Quien quiere ser mi amigo por favor ?<br><br> Cuantos es 5+5
liubo4ka [24]
5+5= 10
por que 5 +5 es diez
7 0
3 years ago
Read 2 more answers
A=9, b = 10, c =11.4, 2C = ___
natima [27]

Answer:

22.8

Step-by-step explanation:

A, and B are distractions. multippe C (11.4) by 2, you'll get 2C (22.8)

6 0
3 years ago
Read 2 more answers
PLEASE ANSWER QUICKLY I WILL MARK BRAINIEST AND 70 POINT
kykrilka [37]

a) You are given the rate as 7.4m/min,

The equation would become d = 7.4t where d is the total distance and t would be the total number of minutes.

b) d would be a positive number because the diver is ascending, which means he is moving up towards the surface.

c) To find how long it took the diver, replace d with 41.36 ( how deep the diver was) and solve for t:

41.36 = 7.4t

To solve for t, divide both sides by 7.4:

t = 41.36 / 7.4

t = 5.59 minutes ( 5 minutes and 35 seconds)

8 0
2 years ago
A phone call costs $0.65 for the first 3 minutes and $0.15 for each additional minute. If the total charge for the call
ira [324]

Answer:

31 Minutes

Step-by-step explanation:

4.78 = 0.15 + 0.58

0.15m = 4.78 - 0.58

m = 4.78 - 0.58 divided by 0.15 = 28 minutes

So in total we have 28 + 3 = 31 minutes

7 0
3 years ago
Other questions:
  • What is the answer -2-5+6g=11-3g
    13·2 answers
  • What does congruent mean
    6·2 answers
  • The equation of the line of best fit of a scatter plot is y = −4x − 6. What is the slope of the equation?
    5·2 answers
  • Evaluate 3a2 + 4b2 for a = 2 and b = 3
    6·1 answer
  • A group of researchers is designing an experiment to test whether an herbal supplement will help people lose weight. The researc
    8·1 answer
  • What is the area of the triangle? 3.6ft 6ft 4.8ft
    6·2 answers
  • I'm in need of assistance here, please answer ASAP!
    12·2 answers
  • Hi um help with the question 40 SECS​
    10·2 answers
  • Erp systems are initially set up to support ________ as opposed to supporting the reporting component
    8·1 answer
  • How much water should be added to a 15 gallon solution of 35% hydrogen peroxide to create an 8% solution? how many gallons would
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!