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
PIT_PIT [208]
3 years ago
6

I have two equationsa-2b=8 and 4a+3b=21 how can you solve one of these for a​

Mathematics
1 answer:
Olenka [21]3 years ago
6 0

Step-by-step explanation:

You could find a number that can be multiplied by 2 and a number for a that when you subtract from the number that you multiplied by 2 can give the result of 8.

Example:

a-2b=8: a=12-2•2=8

12-4=8

You might be interested in
What is the range of the function f(x)=(x-4)^2-5
uranmaximum [27]

f(x) = (x - 4)^2 - 5

Vertex (4 , -5)

This function opens upward and has min. value = -5

So range y >=  - 5

So answer is A. -5 <= f(x) < ∞

4 0
3 years ago
Read 2 more answers
Blank% of 50 shirts is 35 shirts
Alex787 [66]

Answer: 70%

Step-by-step explanation:

A percentage is a way of writing a fraction, but with a denominator of  

100

Asking the question a different way makes it easier to understand.

What percent is  

35

shirts out of  

50

?

This indicates that there is a fraction.

35

50

Make the denominator  

100

35

50

×

2

2

=

70

100

=

70

%

Or to make a percent:

fraction

×

100

%

35

50

×

100

2

%

=

35

×

2

=

70

%

7 0
2 years ago
below is the rule for calculating the velocity of a falling object. use this rule to calculate the rate, expressed in feet per s
marshall27 [118]
T=time
when the piano dropped at t=0, its velocity also equals 0
but at t(3)=32(3)=96
the piano is falling at 96fps
8 0
3 years ago
Is negative square root of 9 greater than, less than or equal to -24/8?
brilliants [131]

Answer:

Equal to

Step-by-step explanation:

-\sqrt{9} = -3

-24/8 = -3

-3 = -3

7 0
3 years ago
Please help ASAP this Is due tomorrow
Grace [21]

Answer:

384 inches²

Step-by-step explanation:

The surface area of a cube is found by using 6a².

6 = the number of sides in a cube

a = the given dimension (in this case, 8 inches long)

SA = (6)8²

SA = 6(64)

SA = 384

Hope this helps, sorry if it’s not what you’re looking for :)

3 0
3 years ago
Other questions:
  • Amy has 30 grams of flour. She puts 4 grams of flour in each pot of chowder that she makes.She puts 5 grams of flour in each pot
    10·2 answers
  • Last Question &lt;3 Thanks in advance
    12·2 answers
  • At jacks laundromat, 6 of the washers must be replaced. These washers represent 1/4 of the total number of washers. If w represe
    6·2 answers
  • Julia invested $4,000.00 in a mutual fund with the simple interest rate of 3.5% per year. How much interest would she earn after
    7·2 answers
  • Carey is trying to decide between two guitars. The first had an original price of $160, but is on sale for $100. The second had
    15·2 answers
  • Can someone please help me with this
    6·1 answer
  • Help again geometry similarity transformations
    14·2 answers
  • Do this for me<br> pls im deprate
    14·1 answer
  • Question: In Boston, Massachusetts, there is a 60% probability of rain on a specific day. How was this probability most likely d
    12·1 answer
  • Suppose babies born in a large hospital have a mean weight of 3831 grams, and a variance of 108,900. If 65 babies are sampled at
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!