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
erastovalidia [21]
2 years ago
13

I need help on this question

Mathematics
2 answers:
NISA [10]2 years ago
4 0
The correct answer should be C to this question
Colt1911 [192]2 years ago
4 0

Answer:

A) - M

Step-by-step explanation:

You might be interested in
What is -3 times x squared?
kvasek [131]
What is -3 times x squared?-9x 
4 0
2 years ago
WILL MARK BRAINLIEST!!!
I am Lyosha [343]
The first one should be correct.
6 0
3 years ago
Math help @LIEMONDER
klio [65]
First picture)
I: 5x+2y=-4
II: -3x+2y=12

add I+(-1*II):
5x+2y-(-3x+2y)=-4-12
8x=-16
x=-2

insert x=-2 into I:
5*(-2)+2y=-4
-10+2y=-4
2y=6
y=3

(-2,3)

question 6)
I: totalcost=115=3*childs+5*adults
II: 33=adults+childs
33-adults=childs

insert childs into I:
115=3*(33-adults)+5*adults
115=99-3*adults+5*adults
16=2*adults
8=adults

insert adults into II:
33-8=childs
25=childs

so it's the last option

question 7)
a) y<6 and y>2 can also be written as 2<y<6, so solution 3 exist for example
b) y>6 and y>2 can also be written as 2<6<y, so solution 7 exist for example
c) y<6 and y<2 inverse of b: y<2<6, so for example 1
d) y>6 and y<2: y<2<6<y, this is impossible as y can be only either bigger or smaller than 2 or 6

so it's the last option

question 8)
I: x+y=12
II: x-y=6

subtract: I-II:
x+y-(x-y)=12-6
2y=6
y=3

insert y into I:
x+3=12
x=9

(9,3)

question 9)
I: x+y=6
II: x=y+5

if you take the x=y+5 definition of II and substitute it into I:
(y+5)+y=6

which is the second option :)
5 0
3 years ago
One printing press can print the whole school newspaper in 12 hours, while another press can print in 18 hours. How long will th
rusak2 [61]

Answer:

7 Hours 12 Minutes

Step-by-step explanation:

So they one of the printer increases at a rate of 1/12 and the other increases at a rate of 1/18. Since you don't know the time it actually takes, you will replace both numerators with and x. (x/12 and x/18). You want to set these up so that they are adding. (x/12 + x/18=1). Since you're adding, you want to change it to the same denominator. The lowest is 36 so you multiply x/12 by 3/3 (so you don't unbalance the equation) and x/18 by 2/2. You'll end up with 3x/36 + 2x/36= 1 which will simplify to 5x/36=1. Multiply each side by 36 to leave the variable by itself. It becomes 5x=36 and when you divide it by 5 you get 7.2. So it's seven and .2 hours, which is equivalent to7 and 1/5 of an hour or 7 hours and 12 minutes.

8 0
3 years ago
A recipe uses 5 cups of milk to make 10 servings. If the same amount of milk is used for each serving, how many servings can be
Margaret [11]

Answer: 24 servings

Step-by-step explanation:

First and foremost, we should note that:

4 cups = 1 quart

Therefore, 3 quarts = 3 × 4 cups = 12 cups

Since she uses 5 cups of milk to make 10 servings, it means that 1 cup of milk is used to make 2 servings. Therefore, 12 cups would be used to make:

= 12 × 2

= 24 servings.

6 0
2 years ago
Other questions:
  • The number of mosquitoes in brooklyn (in millions of mosquitoes) as a function of rainfall (in centimeters) is modeled by m(x)=-
    8·2 answers
  • Write an algebraic expression to represent B less than 5
    12·2 answers
  • Compare the values of 700 and 70
    13·2 answers
  • Find the coordinates of the midpoint of the segment whose endpoints are H(5, 13) and K(7, 5).
    14·1 answer
  • W-(-3)=18 what is w<br>subtracting intergers
    12·2 answers
  • Each basket in basketball is worth 2 points. Cathy makes 5 baskets
    14·1 answer
  • Solve f(x)= (x - 1(- 5)?
    12·1 answer
  • One more i need help with plz answer I need it done by today
    5·2 answers
  • A game increased in price by 1/2
    11·1 answer
  • Subtract 2y - 3 from 8y-2.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!