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
Studentka2010 [4]
3 years ago
5

Please help I have 30 mins

Mathematics
1 answer:
Vladimir79 [104]3 years ago
4 0

Answer:  0.6 in 10 % ; 0.4 in 15 %

Step-by-step explanation:

1. (x*10%) + (y*15%)/ x+y=12%

2. x+y = 1  x= 1-y

(0.1x + 0.15y/ x+y= 12/100) * 100

(10x + 15y/x+y = 12)*(x+y)

10x+15y= 12x + 12y

-2x=-3y

2x = 3y   2(1 - y)= 3y

2-2y=3y   2= 5y

y= 0.4

x= 0.6

You might be interested in
WORTH 100 POINTS NEED DONE ASAP WRONG ANSWERS WILL BE REPORTED THANK YOUUU
zysi [14]

Answer:

3.

1.x=√(15²-12²)=√81=9

2.x=√(6²+6²)=6√2

3.c=√(√19²-√7²)=√(19-7)=√12

Step-by-step explanation:

4.h=10

a=b=x

we have

by using Pythagoras law

h²=x²+x²

100=2x²

x²=50

x=√50=5√2

both legs =5√2

7 0
3 years ago
Ryan made 4 identical necklaces, each having beads and a pendant. the total cost of the beads and pendants for all 4 necklaces w
Monica [59]
Write an equation to show all elements:

Cost of 4 lots of b (beads) + cost of 4p (pendants) = $18.80

Put values in;
9.29 + 4p = 18.80
4p = 18.80 - 9.20
4p = 9.60
p = 2.40 cost of each pendant
5 0
4 years ago
Find the value of the expression m − 4.6 for m = 7.
stich3 [128]

Answer:

2.4

Step-by-step explanation:

If you replace m with 7, the expression is now 7-4.6.

7-4.6=2.4

The value of the expression is 2.4.

-hope it helps

3 0
3 years ago
Can you solve this??​
gavmur [86]

Answer:

The answer is c

Step-by-step explanation:

The middle problem is adding, the others are taking away, so C is the correct answer

3 0
2 years ago
Find the value of +c15 when =c4.
Montano1993 [528]
It equals 60 u do 15* 4
6 0
3 years ago
Other questions:
  • Given f(x) = - 3x - 2 and g(x) = - 2x - 4 , find h(x) = g(x) - f(x) .
    7·1 answer
  • Use the graph of y=sin theta to find the value of 2theta for theta = pi/4 radians
    11·1 answer
  • Three gods A, B, and C are called, in no particular order, True, False, and Random. True always speaks truly, False always speak
    13·1 answer
  • If 7 gift bags cost $6.65 and the price of each bag is the same, how much does each bag<br> cost
    8·1 answer
  • In a appropriate environment, guppies reproduce at an astounding rate. A population of reproducing guppies quadruples every mont
    13·1 answer
  • 5(y+a)=x <br> make y the subject of the equation
    13·1 answer
  • I need help :( If you are not sure please say so because if I get it wrong it sets me back about an hour. I am also throwing 40
    9·1 answer
  • Can anyone help me? Thank you! ^-^​
    8·1 answer
  • You add 11/4 tablespoons of olive oil for every 3/2 tablespoons of balsamic vinegar to make 34 tablespoons of bread dip. How muc
    13·1 answer
  • The store is offering a 15% discount .
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!