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
Kitty [74]
3 years ago
10

Solve 10a -7 = 21 - ба​

Mathematics
2 answers:
Orlov [11]3 years ago
4 0

Answer:

a = 7/4

Step-by-step explanation:

10a -7 = 21 - 6а​

Add 6a to each side

10a+6a -7 = 21 - 6а+6a

16a -7 = 21

Add 7 to each side

16a+7-7=21+7

16a = 28

Divide each side by 16

16a/16 = 28/16

a = 7/4

Pavlova-9 [17]3 years ago
3 0

Answer:

A=1.75

Step-by-step explanation:

10a + 6a = 21 + 7 \\ 16a = 28 \\ divide \: both \: sides \: by \: 16 \\ a = 1.75 \: or 1 \ \frac{3}{4}

You might be interested in
There are 7 males and 5 females and we need to select 4 different people. how many ways can we select 4 people?
saul85 [17]

\displaystyle \binom{12}{4}=\dfrac{12!}{4!8!}=\dfrac{9\cdot10\cdot11\cdot12}{2\cdot3\cdot4}=495

5 0
3 years ago
Definition of a parrellegram
oksano4ka [1.4K]
A parallelogram is a four-sided figure with opposite sides parallel.
5 0
3 years ago
Read 2 more answers
What is the area of this composite shape?
NNADVOKAT [17]
Area of rectangle = 6 x 7 = 42
area of triangle = 1/2(3)(6) = 9

area of figure = 42 + 9 = 51

answer
51 <span>in²</span>
7 0
3 years ago
Is the histogram uniform, symmetric, or skewed?
hodyreva [135]
A histogram is a graph used to present ranges of data. In contrast to bar graphs or vertical graphs, these are more used in displaying complex and higher statistical data ranges. Moreover, the illustration is Uniform. Uniform in that it portrays that the data is in a rectangular shaped form. 
8 0
3 years ago
The vertex of a parabola is (3,2). A second point on the parabola is (1,5).which of the following points is also on the graph?
vekshin1
+ <span>The vertex of a parabola is (3,2),
that means the parabola's equation is y=a(x-3)</span>²+2
+ <span>A second point on the parabola is (1,5) and we replace x=1 and y=5. We have: 
5</span>=a(1-3)<span>²+2  ,  so we have 4a=5-2 or a=3/4
So the equation is y=3/4 (x-3)</span>²+2

And by checking we have the point (5;5) is on the parabola
Have fun
8 0
3 years ago
Other questions:
  • Which of the following is the best answer to 4/5 minus 2/3
    14·2 answers
  • What is the equilibrium price per DVD?
    9·1 answer
  • Read the following statements. 1. Each of the two items that Val bought cost more than $10. 2. Val spent $34 for the two items.
    11·1 answer
  • g A fair coin is tossed 20 times. The number of heads observed is the count X of successes. Give the distribution of X . Choose
    6·1 answer
  • -24= -24-12b pls someone help
    5·1 answer
  • Choose the expression that represents the fraction one thirteenth.
    5·1 answer
  • Help me . With work to plz
    5·1 answer
  • The table represents a linear function.<br> What is the slope of the function?
    13·2 answers
  • 1. Jessie colored a poster. She colored
    12·1 answer
  • PLEASE HELP MEEE
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!