Step-by-step explanation:
30% of lightbulbs = 45 lightbulbs
100% of lightbulbs
= 45 * (100/30) = 150 lightbulbs.
Hence there are 150 lightbulbs in the batch.
David and Jim like to race each other for best times. In April, the ratio of David winning to Jim was 5 : 9. In August, the ratio changed to 10 : 4. If David won 15 races in April, how many races did each brother win in August?
15: 6
hope this helps
Which of the following best estimates the sum 1/2+1/3
a 0.4
b .5
c .8
D 1.1
(15 POINTS) Select the correct answer.
Which equation has infinitely many solutions?
A. -5(x + 2) = -4x - 12 - X + 2
B. 3x – 4 + 2x = 5(x-4)
C. 5(x + 7) = -5(X - 7)
D. 6x + 2 - x = -2x - 2 + 7 x
How much to the next whole number from 3 9/10 to 4?
Answer:
1/10
Step-by-step explanation:
It'll be a life saver if you guys can actually help me with this problem.. Please.
There are 500 cars in Frank's junkyard; 350 blue and 150 red. If Joe randomly selects 25 cars from his yard, what's the probability he'll get from 14 to 20 blue cars, inclusive? Could this be considered an almost binomial event?
A. P(x=14) + P(x=15) + P(x=16) + P(x=17) + P(x=18) + P(x=19) This is an almost binomial event.
B. binomcdf(25,.7,20) - binomcdf(25,.7,14) This is almost binomial event.
C. (25/14)(.7)^14(.3)^11 + (25/15)(.7)^15(.3)^10 + ... + (25/19) (.7)^19(.3)^6 + (25/20)(.7)^20(.3)^5 This is an almost binomial event
D. P(14 < x <20) Not an almost binomial event.
E. binompdf(25,.7,20) - binompdf(25,.7,14) Not an almost binomial event
Answer:
C. (25/14)(.7)^14(.3)^11 + (25/15)(.7)^15(.3)^10 + ... + (25/19) (.7)^19(.3)^6 + (25/20)(.7)^20(.3)^5 This is an almost binomial event
Step-by-step explanation:
I think
Beth was working at the grocery store, in the quick check-out line. A customer bought cereal for $3.29 and milk for $3.45. The customer paid with $10.00. How much change does Beth need to give the customer?
Answer:
3.26 cent
Step-by-step explanation:
If the customer orders cereal and milk which the total for those two would be 6.74 and if the person pays $10 then Beth needs to give 3.26 back to the customer
Find the inverse of the following function. A. B. C. D.
Answer:
i think the answer is C
Step-by-step explanation:
Answer:
a
Step-by-step explanation
yes def
Evaluate the expression |2x-5| for x = -3 and for x = 3
Answer: 11 and 1
Step-by-step explanation:
Absolute value = positive
|2x-5| for x = -3 and for x = 3
|2(-3) - 5| = |-6-5| = |-11| = 11
|2(3) - 5| = |6-5| = 1
1.)Solve the following equation by completing the square
2x-3x-28=0
2.) find the sum. (The photo goes with question 2)
Sean places 10 tomato plants in rows. All rows contain the same number of plants. There are between 3 and 8 plants in each row. How many plants are in each row
Answer:
240
Step-by-step explanation:
so what is 3*8 and then what ever you get you multiply by 10
I
i Sophie read 84 pages
1
of her book last week
If she read the same
1
number of pages
I every day. How many
page's did she read
I each day?
Answer:
12 pages
Step-by-step explanation:
1 week = 7 days
84 ÷ 7 = 12 pages
i need help asap pls and thnx you
Answer:
[tex]z^{3}[/tex] or C
Step-by-step explanation:
factor the expression
6x + 24 =
Question
-3(-4)=
Please help me I don’t know what to do!
Answer:
The answer is 12. Please please like.
Please help me ASAP I’ll mark Brainly
-The Number can be divided by the least common multiple 4 and 6
-The hundreds digit is 2
-The sum of all three digits is 15
It is not always possible to measure every individual in a population; what is the name of the representative group
Answer:
Sample
Step-by-step explanation:
The term that represents the description in the question is called sample.
Take for instance:
40 students selected from a class of 1001000 people selected from a population of 100000In the above descriptions:
40 and 1000 represent the samples while 100 and 100000 represent the populations, respectively.
Another example is when 10 cats are picked from an animal farm in order to study their eating pattern.
All these and many more represent sample.
Which of the following is an equation? 8x or 8x=2 or 8x-5 or 8÷x?
Answer:
2nd one is the equation.8x=2
Using the common denominator, what is an equivalent fraction for
4/7 ?
Answer:
6/7,5/7,and 1/8 I think T^TShannon has 3 more purple beads than yellow beads. Which equation represents Shannon’s beads?
Answer:
p = y+3
Step-by-step explanation:
Hello! :)
Please help me solve this + explain your answer :)
I will indeed give you Brainlst <3
Answer:
5
Step-by-step explanation:
Moving the triangle does not affect the length of it
You have to count the spaces and not the intersecting points
Bradley and Melissa share $2,000 in the ratio 2:3. a. How much money did Bradley receive? b. How much money did Melissa receive. c. Melissa used her share as a down payment on a dining room set costing $1,500. What is the balance she owes on the dining room set? (Answer all 3 parts of the question.)
Answer:
a)800
b)1200
c)300
Step-by-step explanation:
2+3=5
2000/5= 400
Answer:
a=$800 . b=$1200 . c=$300
Step-by-step explanation:
2000/5=400
400x2=800
400x3=1200
a rectangle with a length of 3x and a width of x+1 has the same perimeter as a rectangle with a width of x and a length of 2x-2. find the actual dimensions of each figure.
Answer:
8
Step-by-step explanation:
value
28
6. Hannah has 229 horse stickers and
164 kitten stickers. How many more
horse stickers than kitten stickers does
Hannah have?
Subtract 229 and 164 its 65 so thats your answer .
John left a 20% tip on a $40.00 dinner bill how much was the tip
Answer:
$8
Step-by-step explanation:
Answer:
$8.00
Step-by-step explanation:
40 x .20 =8
40+8=$48
Beth put $8,000 in a savings account. At the end of a year
the account had earned $720 in interest. What was the
yearly interest rate on the account?
Answer:
It's %9.0.
Step-by-step explanation:
Someone plz help i need numbers 24 and 26
i hope you understand
ANSWER WUICK WILL.MARK BRANLIEST The ratio of North American Butterflies to South American butterflies at a butterfly park is 8:5. The ratio of
South American butterflies to European butterflies is 5:2. There are 80 North American butterflies at the
butterfly park.
How many european butterflies are there
Answer:
20 butterflies
Step-by-step explanation:
80:50=8:5
50:20= 5:2
20 european butterflies
a group of 6 schools
plan to divide
a grant of $29.4 millions equally
How much will each school
receive?
Answer:
$4,900,000
Step-by-step explanation:
29,400,000 / 6 = 4,900,000
each school will receive 4.9 million
29.4million divided by 6=4.9 million
Write the equation of an ellipse with the following characteristics: center =(1,-3) vertices=(-6,-3),(8,-3)
Foci =(-4.7,-3),(6.7,-3)
Answer:
(x-1)²/49 + (y+3)²/16.51 = 1
Step-by-step explanation:
vertex (8,-3) Foci (6.7,-3) center (h,k) = (1,-3) , major axis parallel to x axis
a is the distance of the vertex from the center, and c is the distance of the foci from the center. b is semi-minor axis
b² = a² - c² Ellipse equation: (x-h)²/a² + (y-k)²/b² = 1
a = 8-1 = 7 c = 6.7 - 1 = 5.7
b² = 7² - 5.7² = 16.51
Ellipse equation: (x-1)²/49 + (y- -3)²/16.51 = 1 i.e. (x-1)²/49 + (y+3)²/16.51 = 1