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
Margaret [11]
3 years ago
13

Please Help, Lots of points

Mathematics
1 answer:
Andrei [34K]3 years ago
3 0

Answer:

9 cats

Step-by-step explanation:

x = cat

y = dog

Set up equations.

x + y = 30

4.5x + 8.5y = 219

Multiply first equation by 4.5 and subtract.

4.5x + 4.5y = 135

-(4.5x + 8.5y = 219)

-4y = -84

y = 21

Substitute this y value into the first equation

x + y = 30

x + 21 = 30

x = 9

You might be interested in
avocados cost $3 per pound. write and graph an equation in two variables that represents the cost of buying avocados
EastWind [94]
Pounds will be represented by x and the cost will be represented by y. The equation is Y=3x. For the graph just use substition for x and then calculate the outcome and graph it.
4 0
3 years ago
Hadley has 3/6 of a box of white envelopes and 1/3 of a box of gray envelopes. When full, each box of envelopes has the same num
QveST [7]

Answer:

<u>The two statements that apply are A and B.</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

White envelopes Hadley has = 3/6 of a box

Gray envelopes Hadley has = 1/3 of a box

When full, each box of envelopes has the same number of envelopes

Hadley said she has 4/9 of a box when she puts the white envelopes and gray envelopes together.

2. Which statements describe this situation? Select the two statements that apply.

Let's add 3/6 and 1/3

3/6 + 1/3 = 3/6 + 2/6 = 5/6

A. Hadley’s answer is incorrect, because 3/6 is equal to 1/2 , and 4/9 is less then 1/2 .   This is correct.

B. Hadley's answer is incorrect, because 3/6 plus 1/3 equals 5/6.   This is correct.

C. Hadley's answer is incorrect, because 3/6 plus 1/3 equals 2/6.  This is wrong

D. Hadley's answer is correct, because 3 and 1 is 4, and 6 and 3 is 9. This is wrong.

<u>The two statements that apply are A and B.</u>

3 0
3 years ago
1. Find X<br><br> A. 16.45<br> B. 15.92<br> C. 12<br> D. 11.5
love history [14]

Answer:

A is your answer

Step-by-step explanation:

4 0
3 years ago
PLZ HELP WILL GIVE BRAINLIEST 50+25 POINTS!!!<br><br>Graph the following piecewise function.
Luda [366]

We need to graph the given piecewise function.

To graph any piecewise function we do that into parts

Let's graph upper part first which is

f(x)=x^2+2

restriction for that is -5 \leq x < 3

that means we are free to pick any number for x that is between -5 and 3, including 3.

So we will find few points by plugging random numbers between -5 and 3.

Let's use x=-5, we get:

f(-5)=(-5)^2+2=25+2=27

so first point is (-5,27).

similarly we can find other points like (0,2), (2,6), (-1,3) etc.

Now we join those points by a curved line.

-5 \leq x means we use a close circle at -5

x<3 means use open circle at 3


------------

Repeat same process for 2nd part f(x)=x-4

choose any number between 3 and 7 like x=3, 4 etc

so we get points (3,-1), (4,0) etc

Now graph them

So the final graph will look like:


5 0
3 years ago
Read 2 more answers
n the first half of a basketball game, a player scored 9 points on free throws and then scored a number of 2-point shots. In the
aniked [119]

Answer:

In the first half of a basketball game, a player scored 9 points on free throws and then scored a number of 2-point shots. In the second half, the player scored the same number of 3-point shots as the number of 2-point shots scored in the first half. Which expression represents the total number of points the player scored in the game?

a) 2x + 3x + 9

b) 2x + 3 + 9

c) 2x + 3x + 9x

d) 2 + 3x + 9

Answer:

a) 2x + 3x + 9

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • sum_(n=0)^infinity (x+8)**n/(3**n) (a) Find the values of x for which the series converges. (Enter the smaller number first.) (
    9·1 answer
  • A histogram and a__ don’t show individual data. They show how the data are distributed
    13·1 answer
  • 5. Marcos obtains a mortgage for $350,000 with the following terms:
    12·2 answers
  • Goran needs to drive 14 miles to work. so far, he has driven 2.2 miles. how many more miles must he drive?
    6·1 answer
  • 32/a = 12.8/5.6<br><br> Pls show work for brainest <br> (Question worth 12 points)
    8·1 answer
  • Please help im confused
    10·2 answers
  • Write an equation in point-slope form of the line that passes through the point (3, – 4) with slope 1.
    7·1 answer
  • Convert each fraction to a decimal. A. 4/5 B. 3/40 C. 8/200
    7·2 answers
  • The United States earned 104 medals at the 2012 summer olympics. The number of silver medals earned was the same as the number o
    14·1 answer
  • A line has a slope of 1/7 and includes the points (0,–4) and (u,–5). What is the value of u?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!