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
Vinil7 [7]
3 years ago
11

7a-4b=2b-5a solve for a

Mathematics
1 answer:
uysha [10]3 years ago
5 0

Step-by-step explanation:

7a - 4b = 2b - 5a

7a + 5a = 2b + 4b

12a = 6b

a = 6b/12

a = b/2

You might be interested in
April has 5 milligrams of zinc and 0.25 milligrams of copper.
GREYUIT [131]

Answer:

It's 4.75

Step-by-step explanation:

If you subtract 5-.25=? The answer would be 4.75. Hope this helps.

7 0
3 years ago
Tiana has already taken 1 page of notes on her own, and she will take 1 page during each hour of class. In all, how many hours w
Novosadov [1.4K]

Answer:

<u>42 Hours.</u>

Step-by-step explanation:

As an equation where y is the total pages and x is hours of class:

y=1+1x since she started with 1 page and does 1 page per hour.

Setting the total pages she needs as 43 (y=43) we get:

43=1+1x

Subtract one on both sides

42=1x

The 1 doesn't need to be written so

x=42

Therefore, it'll take her 42 hours to write all those notes.

4 0
3 years ago
What is two mixed numbers that have the sum of 3
Juli2301 [7.4K]
Mixed numbers are a mix of a whole number and a fraction
a easy one is
1 and 1/4+1 and 3/4
1 and 1/2 +1 and 1/2
1 and 9/10 and 1 and 1/10
etc
6 0
3 years ago
How many meters below the surface of the water is the ring? LOOK AT THE PICTURE
insens350 [35]
It's exactly 4 meters because the question is asking how far below is it from the surface of the water.
4 0
3 years ago
Jerry starts with $1400 in a college savings account. His account earns interest at a rate of 2.7%
tigry1 [53]

Answer: There will be $ 1687.02 in the account after 7 years.

Step-by-step explanation:

Formula to find the accumulated amount (A) in account on principal amount (P) with rate of interest (r) in 't' years is given by :-

A=P(1+r)^t

As per given, P =  $1400

r= 2.7% = 0.027

t= 7 years

Then,

A= 1400(1+0.027)^7\\\\= 1400(1.027)^7\\\\= 1400(1.2050168)\\\\= 1400(1.2050168)\approx1687.02

Hence, there will be $ 1687.02 in the account after 7 years.

3 0
3 years ago
Other questions:
  • Fl v = fl ʒ _____<br> any help please
    12·1 answer
  • Please help me :)) algebra 2! what are the real roots?
    9·1 answer
  • Describe how to solve the inequality 3(a+5)&lt;9
    6·1 answer
  • Use the substitution method to solve the following system of equations: 3x + 5y = 3 x + 2y = 0 (1 point) (1, 1) (6, −3) (6, 1) (
    12·1 answer
  • A space for storing boxes is 36 inches high. Each box is 6 inches high. A space of 9 inches must be left at the top. what is the
    15·1 answer
  • The cost of a shirt was originally $ 40 but the price dropped to $32 because it was on sale. What was the percent change in the
    14·2 answers
  • Maddie tried to divide 160 stickers equally amongst herself and 5 friends. There was some stickers left over, so she kept them.
    13·1 answer
  • HEYOO PEEPS Calculate the average speed of the four team members. Each person ran 50 meters.
    14·2 answers
  • Name the property of real numbers illustrated by the equation (x + 8) + 4 = x + (8 + 4)
    15·2 answers
  • Which is less, 8 ½ pounds or 130 ounces?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!