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
g100num [7]
3 years ago
14

System of equations, please help.

Mathematics
1 answer:
Rzqust [24]3 years ago
3 0

Answer:

3.75*A + 2.50*D = 35

A + D = 12

A = 12 - D

3.75*(12-D) +2.5*D= 35

45 - 3.75D + 2.5D = 35

45 - 1.25D = 35 |-35

10 - 1.25D = 0 |+1.25D

10 = 1.25D | /1.25

8 = D

A+D=12

A+8=12 |-8

A=4

If you like it, brainliest would be cool

You might be interested in
If s(x) = x – 7 and t(x) = 4x2 – x + 3, which expression is equivalent to (t*s)(x) ?
Inessa05 [86]
Hello,

(t*s)(x)=t(x)*s(x)=(4x²-x+3)*(x-7)

Answer D
8 0
3 years ago
Read 2 more answers
Hamzah's soccer team is trying to raise $620 to travel to a tournament in Florida, so they decided to host a pancake breakfast.
Kobotan [32]

Answer:

31 people

Step-by-step explanation:

Hamzah soccer team is trying to raise the amount of $620 to travel to a tournament in Florida

The soccer team decide to organise a pancake breakfast

Each person that attends the breakfast must pay $20

Therefore the amount of people needed to attend the breakfast to raise $620 can be calculated as follows

= 620/20

= 31

Hence 31 people need to be in attendance inorder to raise $620

5 0
3 years ago
If a laptop originally costs $800, the balance due after the 10% discount and $150 gift card is applied is $.
timama [110]
If a laptop originally costs $800 at purchase, and is then discounted by 10%, the remainder would be $720, given that 10% of $800 is $80. Therefore, once then applying the credit card to reduce it another $150, the final price of the laptop would come out to $570 once the deductions are considered.
4 0
3 years ago
Read 2 more answers
V=1/2at^2 solve for t
malfutka [58]

\dfrac{1}{2}at^2=V\qquad\text{multiply both sides by 2}\\\\at^2=2V\qquad\text{divide both sides by}\ a\neq0\\\\t^2=\dfrac{2V}{a}\to\boxed{t=\sqrt{\dfrac{2V}{a}}}

8 0
4 years ago
Write a division equation that can be solved by multiplying each side by​ <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B9%7D%7B
sveta [45]
For example:
(4/9) x=8

Now can solve this equation multiplying each side by 9/4.

(9/4)(4/9)x=(9/4)8
x=18

To  check:
(4/9)(18)=(4*18)/9=72/9=8

4 0
3 years ago
Other questions:
  • Write an explicit formula for the following sequence. Then generate the first five terms.
    6·1 answer
  • What is smallest integer that can be add to 109,456 to make divisible by 7?
    15·1 answer
  • Solve sin^2 2θ=-1-cos^2θ on the interval 0&lt;θ&lt;2pi
    12·1 answer
  • Miguel's teacher asks him to color 4 8th of his grid he must use 3 colors red blue green there must be more green sections than
    7·1 answer
  • How many times does 46 go into 351
    15·2 answers
  • In a lake, there is a patch of lily pads. Every day, the patch doubles in size. If it takes 48 days for the patch to cover the e
    11·2 answers
  • Select all the points that are on the line through (0,5) (2,8)
    8·1 answer
  • What is the solution to -6x = -24
    8·2 answers
  • If 15 pizza costs $195, how much will it cost for 150 pizza​
    6·2 answers
  • We can find an unknown angle in a triangle by applying the fact that total interior
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!