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
shutvik [7]
3 years ago
7

Please solve all the questions or at least one thanks. Help!

Mathematics
2 answers:
azamat3 years ago
7 0
4. 10 and 5 are the dimensions
Stels [109]3 years ago
7 0
X = apples and y = oranges
3x + 2y = 9.93...multiply by 2
2x + 3y = 9.82...multiply by -3
------------------
6x + 4y = 19.86 (result of multiplying by 2
-6x - 9y = - 29.46 (result of multiplying by -3)
-----------------add
-5y = - 9.6
y = -9.6 / -5
y = 1.92 <==== cost per kg for oranges

2x + 3y = 9.82
2x + 3(1.92) = 9.82
2x + 5.76 = 9.82
2x = 9.82 - 5.76
2x = 4.06
x = 4.06/2
x = 2.03 <== cost per kg per apples
========================
P = 2(L + W)
P = 30
L = 2W

30 = 2(2W + W)
30 = 2(3W)
30 = 6W
30/6 = W
5 = W <=== width is 5 cm

L = 2W
L = 2(5)
L = 10 <== length is 10 cm
=======================
x = first number and y = second number
4x + 3y = 15....multiply by 2
3x - 2y = 7...multiply by 3
-----------------
8x + 6y = 30 (result of multiplying by 2)
9x - 6y = 21 (result of multiplying by 3)
----------------add
17x = 51
x = 51/17
x = 3 <=== first number

3x - 2y = 7
3(3) - 2y = 7
9 - 2y = 7
-2y = 7 - 9
-2y = -2
y = -2/-2
y = 1 <=== second number
======================
x = sons age and y = fathers age
2x + y = 95
x + y = 70...multiply by -1
-------------
2x + y = 95
-x - y = -70 (result of multiplying by -1)
------------add
x = 25 <== sons age

2x + y = 95
2(25) + y = 95
50 + y = 95
y = 95 - 50
y = 45 <=== fathers age
=====================
sorry but I dont know the last one...never was good at those kinds of problems

You might be interested in
Do the ratios 2:4 and 5:10 form a proportion?<br> yes or no
Kisachek [45]

Answer:

Yes, the ratios do form a proportion.

5 0
2 years ago
What’s the circumference and the area for 4 in
Paladinen [302]

Answer:

C = 25.12 , A = 50.24

Step-by-step explanation:

C = \pi d\\A = \pi r^{2}

C = 8 * 3.14 = 25.12

A = (4*4) * 3.14 = 50.24

5 0
3 years ago
Match each equation to its solution.
motikmotik
Ik one of them.. x = 6 to 000
5 0
3 years ago
Read 2 more answers
Jaden earned $54 every nine days based on this information how many days will it take Jaden to earn $96​
inessss [21]

Answer:

it will take her 16 days

Step-by-step explanation:

4 0
3 years ago
Which expression represnts the product of 2xy and 3xy+5y-xy^2
melisa1 [442]

Answer:

You distribute the 2xy and get

2xy(3xy + 5y - xy^2) = 6(x^2)(y^2) + 10xy^2 - 2(x^2)(y^3)

8 0
3 years ago
Other questions:
  • 1. 7 2/3 + 2 7/12
    15·1 answer
  • Can someone please help me with 4(7q+3)
    10·2 answers
  • What is the slope of the line on the graph?<br> WILL GIVE BRAINLIEST
    7·2 answers
  • Complete the square to write 6x2 + 12x + 9 = 0 in the form of a(x − b)2 = c; where a, b and c are integers.
    9·1 answer
  • Explain why the solution of 5x-3 is greater then 14 or 2x+5/3is less than 4
    5·1 answer
  • 3^15 is the product of which of the following two
    6·1 answer
  • What's the Answer I need help quick!!!
    7·2 answers
  • A paper company produces 4,050 notebooks in 5 days. How many notebooks can it produce in 13 days?
    7·1 answer
  • W/4 -7 = -5 <br><br> show your work
    9·2 answers
  • 5x + 9y = 10<br> -x +2=7/3y
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!