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
olasank [31]
4 years ago
8

Number 3 please solve and explain

Mathematics
1 answer:
allochka39001 [22]4 years ago
8 0

Answer: -12.5

Step-by-step explanation:

x(2y-3) and x=2.5 and y=-1

so you fix in the figures so it will turn to

2.5(-2-3)

so then you open the brackets with 2.5

-5-7.5

Answer: -12.5

You might be interested in
What two numbers that are the same equal 75
nydimaria [60]
If you mean two of the same numbers that add to make 75, it's 37.5 ....?
6 0
3 years ago
If area of a rhombus is 336 cm and one of its diagonal is 14 cm, find its perimeter.
arsen [322]

Answer:

The perimeter of the Rhombus is 100 cm

Step-by-step explanation:

First of all, we will need to find the length of the other diagonal.

let’s call the diagonals p and q

Mathematically, the area of the Rhombus is;

pq/2 = Area of Rhombus.

Let’s call the missing diagonal p

So;

(p * 14)/2 = 336

14p = 672

p = 672/14

p = 48 cm

Now, we can find the perimeter of the Rhombus using these diagonals.

Mathematically;

P = 2 √(p^2 + q^2)

Substituting these values, we have;

P = 2 √(14)^2 + (48^2)

P = 2 √(2500)

P = 2 * 50

P = 100 cm

7 0
3 years ago
A= 1/2h (b+B) for h
Kruka [31]

Answer: h=a/b

Step-by-step explanation:

7 0
3 years ago
A container holds a combination of nickels and quarters. There are 156 coins in all, and their total value is $21.60. The system
Tatiana [17]
X+y=156
<span>0.05x+0.25y=21.6

-1/4*/ x+y=156
1/20x+1/4y=216/10

-1/4x-1/4y=156*-1/4=-39

</span>1/20x+1/4y=216/10
<span>+--------------------------
-4/20x=-17,4

x=87

</span>x+y=156
<span>
87+y=156    y=69

this question answer is </span><span>87 nickels and 69 quarters</span><span>

</span>
3 0
3 years ago
Find mÐPSQ if mÐPSQ = 3y – 15 and mÐPRQ = 2y + 25
julia-pushkina [17]

Answer:

40 degrees

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • PLEASE HELP ASAP! SHOW WORK IN EASY WAY!​
    8·1 answer
  • Which equation is equivalent to 3[7x-4(x-3)]+1=16
    5·1 answer
  • One number is 5 more than another. Their sum is 53. What are the two numbers
    7·2 answers
  • 20 POINTS A candy bar and soda cost $2.46, and the sales tax is 5.5%. How much sales tax would be charged on the candy bar and s
    12·2 answers
  • A 4-column table with 3 rows titled paint color preference. The first column has no label with entries liked new paint color, di
    10·2 answers
  • Ramesh examined the pattern in the table.
    10·2 answers
  • What is the most precise term for quadrilateral ABCD with vertices A(4,4) B(5,8) C(8,8) and D(8,5)
    6·1 answer
  • 375 is 60% of what number
    14·1 answer
  • Which of the following number is the smallest 0.1,0.01,0.001,0.0001​
    5·2 answers
  • Why cant i understand this
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!