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
timofeeve [1]
3 years ago
10

What is 7a+21=56 and what is the solution

Mathematics
2 answers:
asambeis [7]3 years ago
7 0
7a+21=56

Begin by subtracting 21 on both sides:
21-21=0 so the 21 in the left cancels, then 56-21=35

Your new equation will be
7a=35

Finally, divide by 7 on both sides:
7/7=1 and 35/7=5

your answer will be
a=5
adoni [48]3 years ago
3 0
7a+21=56

Subtract 21 from 56

7a=35

Divide 35 by 7

Answer a=5
You might be interested in
How would i do number 2?
vekshin1

Answer:

m=2

Step-by-step explanation:

When you put a number into the inverse of a function (f^-1) you get the original number back.

Ex: f^-1(11) = (11-3)/2 = 4

f(4) = 2×4+3 = 11

So, f(-5)=-2

So, when x is -5,

f(x) = -2

f(x)=m(-5)+8

-2=m(-5) + 8

m=2

3 0
3 years ago
It’s due in 15 minutes plz help 23 points
Norma-Jean [14]

Answer: negative

you can see the line into the middle going inside of the negative.

4 0
2 years ago
Line c has an equation of y=-3/4x-3. Line d is parallel to line c and passes through the points (-2, -2). What is the equation o
blagie [28]

Answer:

y = \frac{3}{4} x - \frac{7}{2}

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - \frac{3}{4} x - 3 ← is in slope- intercept form

with slope m = - \frac{3}{4}

Parallel lines have equal slopes , then

y = - \frac{3}{4} x + c ← is the partial equation of line d

to find c substitute (- 2, - 2 ) into the partial equation

- 2 = \frac{3}{2} + c ⇒ c = - 2 - \frac{3}{2} = - \frac{7}{2}

y = - \frac{3}{4} x - \frac{7}{2} ← equation of line d

5 0
2 years ago
With compound interest, what happens when you start compounding more and more frequently?
VLD [36.1K]
Your money grows faster because the interest is added back into the principle and then the next time it compounds you get interest on the new principle amount.  So for example, you deposit $100 in an account that gets 5% interest compounded semiannually. The first time it compounds you get $5 added to your account so your new balance is $105.  The next time it compounds you get 5% on $105 so you get $5.25 added and so on.  If this is only happening semi-annually that would be all you get for the year.  But if it happens quarterly you would get would get deposits of $5.51 and $5.79 as well.  If it compounds monthly or even daily your money would grow more and more.  Hope this helps.
7 0
3 years ago
Simplify 15x + 2y + 7x + 8y
omeli [17]

Answer:

22x+10y

Step-by-step explanation:

15x + 2y + 7x + 8y ----> 22x+10y

6 0
2 years ago
Other questions:
  • 7 x 2 + 2[7 + 3(5 - 2)] + 2<br> ____________________<br> -4 x 2
    8·1 answer
  • Problems due Monday.
    15·2 answers
  • Solve the quadratic equation x2 + 14x = 51 by completing the square.
    15·1 answer
  • Gustavo is the league’s home run leader. The probabilities for his total number of home runs for the season are follows:
    6·2 answers
  • A triangular plot of land is shown.
    14·1 answer
  • I really need help! ASAP<br> Someone please!<br><br> Solve for x.<br> Look at the picture below.
    15·1 answer
  • Please help!!
    9·1 answer
  • Factor expression 10x + 25
    15·1 answer
  • The revenue, in dollars, of a company that manufactures televisions can be modeled by the polynomial 3x²+180x . The cost, in dol
    5·1 answer
  • Caps in the mall is having a 40% off sale on all baseball hats. Mary paid $12 for her favorite hat that was on sale. What was th
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!