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
Sergeu [11.5K]
3 years ago
13

Help please!!!! Im really stuck.

Mathematics
1 answer:
Likurg_2 [28]3 years ago
3 0

Answer: 275 adults and 130 children

Step-by-step explanation:

<u>First, find the value of one variable by rearranging a equation:</u>

<u />a+c=405\\c=405-a

<u>Substitute it into the other equation and solve for a:</u>

<u />12a+5c=3950\\12a+5(405-a)=3950\\12a+2025-5a=3950\\12a-5a=3950-2025\\7a=1925\\a=\frac{1925}{7} =275

<u>Use the a-value to find b by substituting it into the rearranged equation:</u>

<u />c=405-a=405-275=130

<u>Therefore, the answer would be:</u>

<u />\left \{ {{a=275} \atop {c=130}} \right.

You might be interested in
Write the equation in standard form using integers.
kifflom [539]

<h2><u><em>4x + 5y = -30 hope this helps</em></u></h2>

7 0
2 years ago
The vertices of a parallelogram are shown below.
OleMash [197]
The vertices for the dilated image can be found by multiplying the coordinates of the original image by the scale factor. In this problem, the scale factor is 1/3.

(0,0) ⇒ 0 x 1/3 = 0 ; 0 x 1/3 = 0 ⇒ (0,0)
(27,0) ⇒ 27 x 1/3 = 9 ; 0 x 1/3 = 0  ⇒ (9,0)
(36,30) ⇒36 x 1/3 = 12 ; 30 x 1/3 = 10 ⇒ (12,10)
(9,30) ⇒ 9 x 1/3 = 3 ; 30 x 1/3 = 10 ⇒ (3,10)

Answer is choice D. (3,10)
4 0
3 years ago
Plz help marking brainiest answers!!!
Nady [450]
2(13) = 26
-3(6) = -18
26 -  18
=8
so the answer is A
8 0
2 years ago
Which type of equation can be used to model the data in the table below?
leva [86]
X| 2|4|6jsososodidididjfjfifififififofioff
7 0
3 years ago
1/2 cup of milk per 2 cups of flour. Find the unit rate.
mestny [16]

Answer:

1/4 cup of milk per 1 cup of flour

Step-by-step explanation:

(1/2)/2=(1/2)(1/2)=1/4

6 0
3 years ago
Other questions:
  • Are natural number always, sometime,never rational number<br>​
    13·1 answer
  • A prof should be have more steps in the reason column than steps in the statement column sometimes, true or never true
    7·1 answer
  • A pair of equations is shown below: y = 6x + 9 y = 7x + 7 What is the solution to the pair of equations?
    7·1 answer
  • Suppose that $9000 is placed in an account that pays 2% interest compounded each year. Assume that no withdrawals are made from
    10·1 answer
  • Mrs Crawford has 3.68 in penny wars. if Mrs Hollmans class sabotages Mrs crawfords class with 3 $ how much money do they have le
    7·1 answer
  • If you steal the points, ill report you (❁*ᵕ*)︻╦╤─
    8·2 answers
  • Please help!!! Will mark Brainliest!
    9·1 answer
  • HELP PLEASE IM SO CONFUSED
    8·1 answer
  • The midpoint of AB is M(-2, -1) If the coordinates of AA are (-7, 2) what are the coordinates of B?
    9·1 answer
  • If the sum of the interior angles of a regular polygon is 1620°, what is the measure of one exterior angle. Round to the nearest
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!