Answer:
x = 2x
x + 20 = 2x + 20
And,
1.5(x + 20) = 2x + 20
x = 20 i.e. Alexis
And, Jelani be 40
Step-by-step explanation:
Given that
Jelani has twice as much as Alexis
And, both can added $20
Jelani will have 1.5 times as much on his pass on Alexis
We need to write an equation also the amount does Jelani and Alexis have
So,
Let us assume the alexis be x
And, Jelani be 2x
Now
x = 2x
x + 20 = 2x + 20
And,
1.5(x + 20) = 2x + 20
1.5x + 30 = 2x + 20
-0.5x = -10
x = 20 i.e. Alexis
And, Jelani be 40
0.39+0.11= adding decimals
Solve the inequality for w.
20 ≥ - 4w
Simplify your answer as much as possible.
Answer:
w[tex]\geq[/tex]-5
Step-by-step explanation:
-4w[tex]\leq[/tex]20
4w[tex]\geq[/tex]-20
w[tex]\geq[/tex]-5
In Ellen's math class, there were 2 boys to every 3 girls. Which of the following could be the ratio of girls to boys in the class? As a fraction
Answer:
A . 17/21
B . 14/21
C . 7/14
D. 11/17
Step-by-step explanation:
Answer:
Answer is B: 14 to 21
Step-by-step explanation:
The ratio "2 to 3" was multiplied by 7 to get this ratio. All the other following are incorrect.
After Charlie ate 2/3 of the remaining cake, he divided the rest equally among his 3 friends. What fraction of the pan of cake did each friend get? Write an expression and show all of your work.
Answer: 1/9 of the cake
Step-by-step explanation:
Charlie ate 2/3 of the cake which means that what is left to give the friends is:
= 1 - 2/3
= 1/3 of the cake
This was divided equally amongst three friends so the expression would be:
= 1/3 ÷ 3
This can also be written as:
= 1/3 * 1/3
= 1/9
Each friend got 1/9 of the cake.
Answer:
1/9 of the cake
Step-by-step explanation:
1 - 2/3 = 1/3 left
(1/3) / 3 = 1/9 = what each friend got
In one fell swoop we have ( 1 - 2/3) / 3 = 1/9
find the area of the figure below:
Answer:
104 ft^2
Step-by-step explanation:
Answer:
104 ft²
Step-by-step explanation:
you can solve this multiple ways, one way is: find the area of the big rectangle and subtract from it the area of the small rectangle
big rectangle
A big = 8 * (5+6+5)= 8 * 16 = 128 ft²
small rectangle
Asmall = 4*6 = 24 ft²
area of the shape
Abig -Asmall = 128-24 = 104 ft²
A two-digit number is a multiple of 9. Find the number if 1/3 of the number is 3 greater than 1/2 of the reverse number. no files please
Answer:
63
Step-by-step explanation:
1/3 of 63= 21
and the reverse of 63 is 36
so 1/2 of 36 =18
so 21-18 =3
hence proven
The two-digit number will be 63 for the given condition.
What is an expression?
Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division.
1/3 of 63= 21
And the reverse of 63 is 36
so 1/2 of 36 =18
so 21-18 =3
Therefore the two-digit number will be 63 for the given condition.
To know more about Expression follow
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what can 18 and 6 both be divided by
Answer:
6
Step-by-step explanation:
they can both be divided by 6
Answer:
they can both be divided by 6
Step-by-step explanation:
18÷6=3
6÷6=1
work out the size of angle x
ill mark brainliest first corect answer!
Answer:
65°
Step-by-step explanation:
First we find the sizes of the other two sides, as the bottom line is straight all angles on it must add up to 180 so:
180-105=75
So the first angle is 75°
180-140=40
So the second angle is 40°
Now as the angles of a triangle add up to 180 we can derive this equation:
75+40+x=180
and all we do is just subtract both sides by 75 and 40:
x=180-75-40
x=65
And 65 is our answer
Evaluate the expression 5+2n^2 when n=3
Hi there!
»»————- ★ ————-««
I believe your answer is:
23
»»————- ★ ————-««
Here’s why:
[tex]\boxed{\text{Evaluating the expression given:}}\\\\5+2n^2 \text{ when } n=3.\\-----------\\\rightarrow5+2(3)^2\\\\\rightarrow5+2*9\\\\\rightarrow 5 + 18\\\\\rightarrow\boxed{23}[/tex]
»»————- ★ ————-««
Hope this helps you. I apologize if it’s incorrect.
The value of the expression 5 + 2n² at n = 3 is 23.
What is a numerical expression?A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.
Given an expression 5 + 2n².
Now at n = 3, we'll simply replace n with 3, So 5 + 2n² is
= 5 + 2(3)².
= 5 + 2(9).
= 5 + 18.
= 23.
learn more about numerical expressions here :
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URGENT
Use technology or a z-score table to answer the question.
The amount spent by customers at a grocery store is normally distributed with a mean of $144.05 and a standard deviation of $34.52.
Approximately what percent of customers at the grocery store spend more than $200?
5.3%
8.2%
91.8%
94.7%
Answer:
5.3%
Step-by-step explanation:
The first step is to find the z score corresponding to $200.
[tex]z=\frac{x-\mu}{\sigma}\\\\z=\frac{200-144.05}{34.52}\approx 1.62[/tex]
The next step is to find the area under the standard normal curve to the right of z = 1.62. Some graphing calculators can do this, and there are tables that will help, although many of those show areas to the left of a particular z-score.
Calculator (TI-83/84)
See the attached image.
The command uses 1 x 10^99 as "positive infinity" and calculates the area under the normal curve from 1.62 all the way to the right.
Table
See attached table. This table shows areas to the left of a certain z-score.
Find the entry for 1.62 (it's on page 2 highlighted with a red box). The table says the area to the left of 1.62 is 0.9474.
But the area under the entire curve is 1!
This important fact means that the area to the right of z = 1.62 is 1 - 0.9474 = 0.0536, about 5.3%
(To get the area to the right of z, subtract the area to the left of z from 1.)
Seaside Bike Shop rents bikes for $10 plus 54 per hour. Jack paid $30 to rent a bike. Which equation, when solved for x, gives the
number of hours he rented the bike?
can someone explain how to get the answer for the following question ?
Find the coordinates of the point of intersection of the parabola y = 3x^2 - x - 7 and the line y = 5x - 10
the answer is (1,-5) if you need it just explain how to get it !!
I am giving away points if you answer this Question
What is 2+2
help help help plssssss
Answer:
SA = 108π cm²
Step-by-step explanation:
The surface area (SA) of a sphere is calculated as
SA = 4πr² ( r is the radius )
Thus the SA of a hemisphere is
SA = [tex]\frac{1}{2}[/tex] × 4πr² = 2πr²
The area of the circular base = πr²
Then total SA is
SA = 2πr² + πr² = 3πr² = 3π × 6² = 3π × 36 = 108π cm²
How many pounds of walnuts that cost $0.80 per pound must be mixed
with 8 pounds of cashews that costs $1.25 per pound to make a mixture of
nuts that costs $1.00 per pound?
Answer:
kt 5.20 yes
Step-by-step explanation:
5.20
Step-by-step explanation:
If a supermarket sells 5 bags of grapes for Rs. 16.60, what is the unit price of a bag of grapes?
A. 3.32
B. 4.32
C. 5.32
D. 2.32
Answer:
It's A
Step-by-step explanation:
Show what you know: Exponents
Find the missing exponent exponent.
32 = 2?
? =
Jennifer babysat for 6 hours and earned $52.50.
divide what is her hourly rate?
Answer:
$8.75
Step-by-step explanation:
52.50/6=8.75
To make sure that is correct
8.75×6
Answer:
Her hourly rate is $8.75
Step-by-step explanation:
I rly rly rly rly rly rly rly rly rly rly rly need help for sum reason
Answer:
6*5=30 units
Step-by-step explanation:
Brainliest?
Using the least common denominator rename 3/5 and 1/20
Answer:
12/20 and 1/20.
Step-by-step explanation:
The least common denomiator between 3/5 and 1/20 is 20.
For the first equation, we multiply the numerator and denominator by 4 to get 12/20.
The second equation's denominator is already 1/20, so we can leave it as is.
The final answer is 12/20 and 1/20.
What is the perimeter?
Help plz... And
No links
I repeat No links!!
Answer:
the perimeter is 25 miles
Answer:
30 mi
Step-by-step explanation:
This is a right triangle, so the Pythagorean Theorem applies:
13^2 + x^2 = 12^2, or
x^2 = 25 and x = 5.
The perimeter is the sum of the dimensions of this triangle:
12 mi + 5 mi + 13 mi = 30 mi
The question is the picture
Answer:
Step-by-step explanation:
Hope this helps u!!
note :if u change divide sign to multiplication sign then do the reciprocal
for eg:
3/4÷3/100
then write,
3/4*100/3
The drama club members want to buy 862 bags of popcorn to serve during the intermission of their play. If popcorn comes in cases of 24 bags, what is the minimum number of cases that they need?
Answer:36
Step-by-step explanation:
Does anyone know?...
Answer:
NOPE
Step-by-step explanation:
Line r is parallel to line c.
Which angle is congruent to < 3
A. <2
B. <4
C. <5
D. <6
Answer: C. <5
Explanation: They are on the same line meaning that they should share the same degree of angle, especially because they are opposite sides of the same line.
Emma and arianna recoreded how much money they earned for doing chores for a each week for 5 weeks, the results were are lised below
Answer:
Step-by-step explanation:
It’s 0
To prepare for a bake-off, Luis used 590 grams of flour each day for 3 weeks. How many kilograms did Luis use in those 3 weeks? 1 g = 0.001 kg Solve this on paper. Then check your answer on Zearn. Luis used kilograms of flour in 3 weeks.
Answer: [tex]12.39\ kg[/tex]
Step-by-step explanation:
Given
Luis used 590 gm of flour each day
If he continues to use it for 3 weeks
A week has 7 days; so 3 weeks have 21 days
The flour used in 21 days
[tex]\Rightarrow 21\times 590\\\Rightarrow 12,390\ g\ \text{or}\ 12.39\ kg[/tex]
Thus, [tex]12.39\ kg[/tex] of flour is used in 3 weeks
which expression is equivalent to 20x−8y
1. 2(10x+4y)
2. 4(5x−8y)
3. 4(5x−2y)
4. x(20−8y)
Answer:
1.
Step-by-step explanation:
We are trying to find out what is equal to 2(10x+4y)
2(10x+4y)
because 2 times 10x is 20x, 4y times 2 is 8y!
Which ordered pairs are solutions to this system of inequalities?
9514 1404 393
Answer:
c, d, e
Step-by-step explanation:
The first two listed points are not in the solution set. The remaining three are.
__
Any point in the doubly-shaded area, or on the solid boundary line of that area is part of the solution set. Points (-1, -6), (0, -5), and (0.5, -2) are solutions to the given inequalities.
In March 2012, film director James Cameron climbed inside the Challenger Deep and descended into the deepest part of the Pacific Ocean, the Mariana Trench. After 12hour, the craft was approximately 2,750 meters beneath the ocean surface. Which equation describes the depth of the Challenger Deep in relation to sea level after 1 hour if they continue to descend at the same rate?
Answer:
hey guys!! answer is B!!
Step-by-step explanation
hope this helps!
Answer:
b give brainest
Step-by-step explanation: