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
Ad libitum [116K]
3 years ago
13

Please help need answer. NO LINKS

Mathematics
1 answer:
nikklg [1K]3 years ago
7 0

Answer:

Answer choice C) 3a-3

Step-by-step explanation:

Your perimeter is of (10a-6). The first step would be multiply 2a by 2 since you have to sides. Which would give you to 4a. Next you will have to subtract 4a from (10a-6). This would give you 6a-6. Finally divide by two and you will get 3a-3.

You might be interested in
PLEASE HELP FAST FAST FAST<br> Use the interactive number line to graph the inequality -1 ≥ x.
pochemuha
Put an open circle pointing to the left on -1
8 0
3 years ago
Read 3 more answers
X=y+1400<br> 0.08x+0.05=840
mezya [45]

Answer:

x = 7000

y = 5600

(7000, 5600)

Step-by-step explanation:

To solve the system of equations means to find the point of intersection (graphically). You are finding what value of 'x' and what value of 'y' fits both equations.

x = y + 1400

0.08x + 0.05y = 840

We can solve using the method <u>substitution</u>, where you replace a variable in one equation with an equivalent expression.

<u>Since "x" is y + 1400, we can replace "x" in the second equation.</u>

0.08x + 0.05y = 840

0.08(y + 1400) + 0.05y = 840    

Distribute over brackets by multiplying 0.08 with y, then 0.08 with 1400.

0.08y + 112 + 0.05y = 840         Collect like terms (with "y" variable)

112 + 0.13y = 840

Now isolate "y" in the simplified equation.

112 - 112 + 0.13y = 840 - 112         Subtract 112 from both sides

0.13y = 728

0.13y/0.13 = 728/0.13         Divide both sides by 0.13

y = 5600         Solved for y

We can substitute "y" with 5600 in any other equation that has "x".

x = y + 1400

x = 5600 + 1400          Add

x = 7000         Solved for x

You may express the answer as a coordinate, or an ordered pair (x, y).

The solution is (7000, 5600).

3 0
3 years ago
Read 2 more answers
Solve the equation X/4=12.5; x=
k0ka [10]

Answer:

x = 50

Step-by-step explanation:

x/5 = 125/10

x * 10 = 125*4(cross multiply)

10x = 500 ( divide both sides by 10)

x= 50

7 0
3 years ago
What is half of 3.334
Kipish [7]
1.667

Basically divide the number by 2
7 0
3 years ago
How do I solve these questions?
stich3 [128]
Y = -4x - 5.....(0,?)...so we know x = 0, so sub in 0 for x and solve for y
y = -4(0) - 5
y = -5....so one point is (0,-5)
do the same for the other points and u get (1,-9) , (-1,-1)

y = -4x - 5.....slope is -4 and ur y int (where ur line crosses the y axes) is (0,-5).
to find the x int (where the line crosses the x axes), sub in 0 for y and solve for x.
0 = -4x - 5
4x = -5
x = -5/4.....or - 1 1/4(for graphing purposes)...x int is (-5/4,0)
so plot all ur points and connect the dots
============================
4x + 9y = 0...(-9,?)..so x = -9..so sub in -9 for x and solve for y
4(-9) + 9y = 0
-36 + 9y = 0
9y = 36
y = 36/9
y = 4...so ur point is (-9,4)

do the same for the others and ur points are : (0,0) , (9,-4)

4x + 9y = 0
9y = -4x....so ur slope is -4 and ur y int is (0,0)
ur x int is : (0,0)....so basically u have a line going through the origin (0,0)
plot all ur points and connect the dots
6 0
3 years ago
Other questions:
  • A local gym has 2 types of cardio machines, treadmills and elliptical machines. There are 38 cardio machines in all. There are 1
    8·1 answer
  • Please help me guys
    5·1 answer
  • Does it matter which way you subtract the values when you are finding the distance between two numbers on a number line? Give ex
    7·1 answer
  • Suppose the length of telephone calls form a normal distribution with a mean length of 8.0 min and a standard deviation of 2.5 m
    8·1 answer
  • I understand but I got confused solving all three of these help.
    8·2 answers
  • predict the number of blue squares in a quilt with 11 green squares if there are 4 green squares in a quilt with 68 blue squares
    5·2 answers
  • What is 12 × 24??????????????????
    13·2 answers
  • Find the product if the sum of two numbers is 131 and the difference is 35
    5·1 answer
  • The expression (x^-8) (x^3) is equivalent to the expression x^n. what is the value of n?​
    9·1 answer
  • Can someone help me please
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!