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
inessss [21]
3 years ago
10

Olivia had math and reading homework tonight. Olivia can solve each math problem in 1 minute and she can read each page in 1.5 m

inutes. Olivia completed a total of 22 math problems and pages of reading in 30 minutes. Write a system of equations that could be used to determine the number of math problems Olivia solved and the number of pages she read. Define the variables that you use to write the system.
Mathematics
1 answer:
AlekseyPX3 years ago
6 0

Answer:

Step-by-step explanation:

Let a represent the the number of math problems that Olivia solved.

Let b represent the number of pages she read.

Olivia had math and reading homework tonight. Olivia can solve each math problem in 1 minute and she can read each page in 1.5 minutes. This means that she can solve a math problems in a minutes and read b pages in 1.5b minutes.

Olivia completed a total of 22 math problems and pages of reading in 30 minutes. This means that

a + 1.5b = 30

She completed a total of 22 math problems and pages of reading. This means that

a + b = 22

You might be interested in
When adding two fractions do i leave the denominator how it is?
telo118 [61]
Hoi!

If the two fractions have a common denominator, then yes, you do. Only add the numerators. :)
7 0
3 years ago
What's the circumference of a circle with radius of 18 in. Leave answer in terms of pie
Verdich [7]
We Know, Circumference of Circle = 2πr
Here, r = 18
Substitute it in to the expression,
C = 2π(18) = 36π

So, your final answer is 36π

Hope this helps!
7 0
3 years ago
A certain tennis player makes a successful first serve 6969​% of the time. Suppose the tennis player serves 9090 times in a matc
Wewaii [24]

Answer:

a) 4.387

b) Yes, because np & npq are greater than 10.

c) = 0.017          

Step-by-step explanation:

Give data:

p = 0.69

n = 90

a) a

E(X) = np = 62.1

SD(X) = \sqrt{(np(1-p))}

          =\sqrt{90\times 0.69(1- 0.69)}

          = 4.387

b)

np = 62.1  

q = 1 - p  = 1 - 0.69 = 0.31

npq = 19.251

Yes, because np & npq are greater than 10.

c.

P(X \geq 72   ) = P(X > 71.5) [continuity correction]

=    P(Z> \frac{((71.5-62.1)}{ 4.387})

= P(Z> 2.14 )      

= 1 - P(Z<2.14)              

= 1 - 0.983   (using table)          

= 0.017          

8 0
3 years ago
Determine the slope and y-intercept of the graph to the right
LekaFEV [45]
The slope is a negative slope and the y-intercept is (0,2).
5 0
2 years ago
Solve x^2 + 5x+6 = 0
prisoha [69]

Answer:

X=-2or,-3

Step-by-step explanation:

X^2+5x+6=0

or,x^2+(2+3)x+6=0

or,x^2+2x+3x+6=0

or,x(x+2)+3(x+2)=0

or,(x+3) (x+2)=0

Either,

x+3=0 x+2=0

or,x=-3 or,x=-2

Therefore,the value if x is -2 or -3 .

I HOPE IT WILL HELP YOU

7 0
3 years ago
Other questions:
  • Theo has a balence of $-4 in his savings account. After making a deposit, he has $25 in his account.What is the overall change t
    13·2 answers
  • What is the recursive formula for this sequence . 10,14,18,22,26
    9·2 answers
  • 5.HELP FAST If each person paid an equal amount, who would save the most money? Explain your reasoning using at least two comple
    5·1 answer
  • Consider a collection of envelopes consisting of 3 red envelopes​, 3 blue envelopes​, 3 green envelopes​, and 3 yellow envelopes
    9·1 answer
  • What is the median of the data: 1, 2, 3, 3, 5, 6, 8
    9·1 answer
  • Imagine that 55% of the 800 students participate in music instead of 60%. How could
    5·1 answer
  • Find the Domain and Range
    6·1 answer
  • I am so bored yall ttm plz
    11·2 answers
  • You lose 4 points each time you
    14·1 answer
  • FInd the area of the shaded polygon
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!