At Ivanna's auto shop, it takes her 15 minutes to do an oil change and 24 minutes to do a tire change. Let x be the number of oil changes she does. Let y be the
number of tire changes she does.
Using the values and variables given, write an inequality describing how many oil changes and tire changes Ivanna can do in at most 2 hours (120minutes)
Plzzz help
Answer:
15x + 24y <= 120
Step-by-step explanation:
It takes 15 minutes per oil change, 15x
It takes 24 minutes per tire change, 24y
In at most 120 minutes, so it must be less than or equal to the time available.
Why is √3 an irrational number?
A.The number is a rational number.
B.The number is represented by a non-terminating, non-repeating decimal.
C.The number is a positive whole number.
D.The number can be expressed as a proper fraction.
Answer:
Step-by-step explanation:
B. The number is represented by a non terminating, non-repeating decimal.
(Strictly speaking it is irrational because it cannot be expressed as a ratio of two integers. All rational numbers can be expressed as a ratio of two integers.)
please help ! I need help with math because I am failing and I might have to repeat the grade.. I have a quiz right now I don’t understand this question I will provide a photo above thank you <3! the question is “1” :)
Answer:
3:8
Step-by-step explanation:
first add up all the crayons
4+1+5+6
16
there are 6 green crayons so the ratio is
6:16
reduce by factor of 2
3:8
Which type of graphs show individual data?
bar graph
line graph
line plot
stem-and-leaf plot
will mark brainlest i promise!!!!
Answer:
Bar graphs Line graphs
Step-by-step explanation: hope it helps
hi please help!!!!!!!!
Answer:
All real numbers
Step-by-step explanation:
The parabola is expanding infinitely in both the negative and positive directions. So the x value will be all real numbers.
which property does the equation demonstrate? 7(6*4) = 42 + 28
Choices:
A= associative
B= commutative
C= distributive
D= identity
Answer: C
Step-by-step explanation:
7*6=42 7*4=28
How many 1/5s are in 4?
Answer:
20
Step-by-step explanation:
4÷1/5=20
5+5+5+5=20
Look I begging you please help me out today last day finish this and I’m in class. (Will mark brainlest) and a Lil extra ;)
Answer:
Range: 5
mode: 19
median: 19
Step-by-step explanation:
Answer:
4) 22-17=5
5) 19
6) 19
7) 11-1=10
8) 6
2. (3 marks) A marketing company conducted a box office study and they found the following. The probability that a husband watches the movie Toy Story is 0.4 while the probability that a wife watches the movie is 0.5. The probability that a husband watches the movie, given that his wife does, is 0.7. (a) What is the probability that a married couple watches the movie
Answer:
0.35 = 35% probability that a married couple watches the movie
Step-by-step explanation:
Conditional Probability
We use the conditional probability formula to solve this question. It is
[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]
In which
P(B|A) is the probability of event B happening, given that A happened.
[tex]P(A \cap B)[/tex] is the probability of both A and B happening.
P(A) is the probability of A happening.
The probability that a husband watches the movie, given that his wife does, is 0.7.
This means that [tex]P(B|A) = 0.7[/tex]
The probability that a wife watches the movie is 0.5.
This means that [tex]P(A) = 0.5[/tex]
What is the probability that a married couple watches the movie?
Both, so:
[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]
[tex]P(A \cap B) = P(B|A)*P(A) = 0.7*0.5 = 0.35[/tex]
0.35 = 35% probability that a married couple watches the movie
Plug in the point to determine if it is on the circle
(x – 3)² + y2 = 4
(5,0)
Answer:
yes
Step-by-step explanation:
(5_3)^2+2(0)=4
substitute with the 5 to x and 0 to y
The ratio of the number of boys to the number of girls in orchestra is 3 to 2. There are 40 girls in the orchestra. How many boys are in the orchestra? HEP FAST PLS IM GIVING BRAINLIEST!!
Answer:
60
Step-by-step explanation:
Which equation is a linear function?
Help please
yalll this is my cry for help I hate math please help mee
Answer:
195 yards
Step-by-step explanation:
I found three shapes in this irregular shape. the top rectangle is 8x13 which is 104 the middle rectangle is 7x9 which is 63 an the triangle at the bottom is 8x7 which is 56 but then you divide by 2 so it's 28 then you add that all and get 195.
An auditorium has 67 rows of seats. The first row contains 60 seats. As you move to the rear of the auditorium, each row has 6 more seats than the previous row.
How many seats are in the 61 th row?
.
How many seats are in the auditorium?
Answer:
1. 420
I cannot figure out the second half. I apologise.
_____ square feet what is the answer?
Answer:
4
Step-by-step explanation:
to solve the area of a triangle is the base times height divided by 2. 2*4/2=4
Micheal is making lemonade, He is serving 10 people. for 1 cup it takes two lemon and 3 cups of sugar.How many would it take to make 10 cups of lemonade
Answer:
look down
Step-by-step explanation:
multiply the number of lemons and sugar needed for 1 cup of lemonade by 10
so he would need 20 lemons and 30 cups of sugar.
Tori sold 450 soft pretzels. If she sold them in groups of 15 soft pretzels, how many groups did she sell?. (Whole number only).
Answer:
30
Step-by-step explanation:
450/15
Answer:
30 Groups
Step-by-step explanation:
She would sell 30 groups of pretzels because 450 divided by 15 equals 30.
Estimate the area of the rectangle.
A)8
B)10
C)14
D)20
Answer:
A or B, I think it's A...
someone please help me
Answer:
40
Step-by-step explanation:
Quadrilateral QRSU forms a euclidean kite this means PR would be 2(mST)
Solve each equation.
11. A number x divided by nine is two.
Answer:
18 is the correct answer to this
Step-by-step explanation:
18/9=2
Joanna has a budget of $250 for school clothes this term. She has spent $191.96 for a jacket and some pairs of pants. She wants to purchase some blouses that cost $14.99. Which graph shows the number of blouses she can purchase without going over budget?
Answer:
x=19
Step-by-step explanation:
I need help please...
Answer:
D. 137 [tex]m^{2}[/tex]
Step-by-step explanation:
First, get the area of the rectangle:
[tex]A_{Rectangle} =length *width[/tex]
[tex]A_{Rectangle}=(15)(11)=165[/tex]
Then, get the area of the triangle:
[tex]A_{Triangle} =\frac{height*base}{2}[/tex]
[tex]A_{Triangle}=\frac{8*7}{2} =28[/tex]
Now substract the area of the triangle from the rectangle:
165 - 28 = 137
∴ 137 [tex]m^{2}[/tex]
Which equation is correct? o 39 x 3 = 30 x 3 + 9x 3
o 39 x 3 = 30 +9x3
o 39 x 3 = 300 × 3+9×3
39×3=30×3+9
39x3=30x3+9x3
117=90+27
117=117
39x3=30+9x3
117=30+27
117=57
39x3=300x3+9x3
117=900+27
117=927
39x3=30x3+9
117=90+9
117=99
So the first one is correct.
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hope it helps
What is 3 1/8 divided by 1/2 simplified
Answer:
6 and 1/4
Step-by-step explanation:
iFraction Calculator :)
Jennifer buys four tubs of coleslaw. She serves two-fifths of each tub onto one plate.
How many plates can she serve before she runs out of coleslaw?
Use properties of operations to find the quotient.
option D is correct one 2 3/16
-1 1/4 ÷ 4/7
-5/4 ÷ 4/7
-5/4 × 7/4 (reciprocal)
35/16= 2 3/16
Find the original price of an item that is on sale for $42 if it is discounted by 20%
Answer:
$52.50
Step-by-step explanation:
Item on sale: 42
Discount: 20%
1-.2=.8
Item on Sale=Original*.8
42=Original*.8
42/.8=
$52.50
Find the lateral surface area of the net below.
-26cm
-20cm
zlom
20cm
Record your answer, be sure to use the correct place value.
9514 1404 393
Answer:
1040 cm²
Step-by-step explanation:
The lateral surface area of the pyramid is the area of the four triangular faces. Each one has an area of ...
A = 1/2bh
A = 1/2(20 cm)(26 cm) = 260 cm²
Then the area of the four faces is ...
4 × 260 cm² = 1040 cm² . . . . lateral surface area
A map scale is 1 cm =500 km the scale ratio is 1 to ____
1 cm — 500 km
1 cm — 500 000 m
1 cm — 50 000 000 cm
the scale — 1 to 50 000 000
convert 280 degrees per minute to radians per second
Answer:
Step-by-step explanation:
0.0814 radian / second