Answer:
Mary - 14
Mary's sister - 21
Step-by-step explanation:
Let x be the age of Mary = x
age of Mary's sister = x + 7
Add up to 35
x + x + 7 = 35
2x = 35 - 7
2x = 28
2x/2 = 28/2
x = 14
Now substitute the value of x
Mary = 14
Mary's sister = 14 + 7 = 21
21 + 14 = 35
An oddly-shaped water bottle holds 30.5 L of water. If the water bottle is 2/3 full, how many L are in the water
bottle?
Answer: 2/3 of 30.5 is 20.3333333333
What is the cost of 4 pounds of apples, if 3 pounds of apples cost $5.28 and the unit price for each pound of apples is the same?
HELP ASAP!
Answer:
$7.04
Step-by-step explanation:
We use proportions so if 3/$5.28 = 4/x. X being the price of 4 pounds. X works out to 7.039 with the 9 infinitely repeating. We round it up for cents and we get $7.04
Find the y-intercept of the following equation. Simplify your answer.
y = 9x - 3/7
y-intercept
Step-by-step explanation:
Find the slope? or what....
How much would you be paid for 4 hours of work? A cashier earns $8 per hour. Time (h) 2 4 Pay ($) 16 40 72
Answer:
32$
Step-by-step explanation:
2 1/4 x 3 1/5 i need help
Answer:
7 1/5
Step-by-step explanation:
2 1/4 * 3 1/5
Change to improper fractions
2 1/4 = (4*2+1)/4 = 9/4
3 1/5 = (5*3+1)/5 = 16/5
9/4 * 16/5
Rewriting
9/5 * 16/4
9/5 * 4/1
36/5
Change back to a mixed number
7 1/5
Hasan plans to choose a book from a section of the store where everything is 25%
off He writes the expression d 0.25d to find the sale price of the book if the original
price is d dollars.
Bella correctly writes another
expression. 0.75d, that will also find the sale price of the
book if the original price is
I/ dollars,
Use the drop-down menus to explain what each part of Hasan's and Bella's
expressions mean.
Hasan's Expression: d - 0.25d
d: Original price0.25: percent discount 0.25d: amount of discountd - 0.25d: sale price--------------------
Bella's Expression: 0.75d
0.75: percent of original priced: original price0.75d: sale price=============================================
Explanation:
The variable d stands for the original price. The store is offering a 25% sale, which means that Hasan will save 25% of the original price. This means 0.25d represents the amount he saves (aka the discount amount).
For instance, let's say d = 100 is the original price. 25% of this is 0.25d = 25 dollars. So if the book is originally $100, then he saves $25.
As you can probably guess, the 0.75 comes from 1 - 0.25 = 0.75; it indicates that if Hasan saves 25%, then he still has to pay the remaining 75%
Notice how d - 0.25d = 1d - 0.25d = (1-0.25)d = 0.75d which points to the sale price being 75% of the original price d.
FedEx will ship the Olympic medals from the producer to Japan. Each medal weighs 0.5 kilograms. A box carries 6 medals. If FedEx charges $28 per every 10 kilograms, how much will cost to ship 30 medals ?
A. $280
B. $168
C. $42
Answer:
42
Step-by-step explanation:
weight of medals:
30 (0,5) = 15 kg
cost of 5 kg:
28/2 = 14
cost of shipping:
14+28=42
Work out Simplify if possible.
Answer:
a.1×9/1=9
b.3×5/1=15 i think this would be the answer
Answer:
a) 9
b) 15
you
can
download
photo
math
to help you with your math :)
Hope this helps you......
Find the median of the list of data.
12, 18, 21, 25, 30, 43
Answer:
23
Step-by-step explanation:
the median is the "Middle" number of the set.21 and 25 are the middle numbers of the set. so now find the middle of 21 and 25.
21 22 23 24 25
23 is the median of the data set
11. Solve 77 +5 - 92 < 18 + 7. Graph the solution.
I think it must be 87 .
Step-by-step explanation:
Not sure how to explain.
You accelerate from 5m/s to 60m/s in 11 seconds what is the average acceleration.
Change in acceleration: 60 - 5 = 55 m/s
Average acceleration = 55 m/s / 11 second = 5 meters per second squared ( m/s^2)
Answer: 5 m/s^2
a line that passes through the point (4, 2) and has the slope of -3/2
Elias is making copies of a business meeting agenda. He needs one copy per person. If there are 3 representatives from each department attending, and there are 9 departments total, how many copies does he need to make?
Answer:
27 copies
Step-by-step explanation: since there are 3 representatives for each department and there are 9 then you multiply 9 and 3 to get your answer.
select the reasons
options for #3
- definition of a quadrilateral
- if two lines are parallel and cut by a transversal, then the alternate interior angles are congruent
options for #5
- ASA congruence property
- SAS congruence property
- definition of a quadrilateral
Step-by-step explanation:
Givens:
ParallelogramQR || TSQT || RSQS ≅ SQWith that information, we can figure out the rest.
∠RQS≅∠TSQ and ∠QSR≅∠SQT --- these are alternate interior angles, on opposite sides of the transversal QS while between parallel lines
Finally, ΔQST≅SQR because of ASA.
===============
sorry that took so long, I severely overcomplicated things before seeing the simple solution
I dare you to answer this ,’:)
I’m serious just help me already
9514 1404 393
Explanation:
Put the given value of x into the expression and evaluate it.
x, 10(x +6), y = 10x +60
2, 10(2 +6), y = 10(8) = 80
4, 10(4 +6), y = 10(10) = 100
6, 10(6 +6), y = 10(12) = 120
8, 10(8 +6), y = 10(14) = 140
Point J(-3, -7) was rotated to J'(7, -3). How
many degrees was the rotation?
Answer:
90 clockwise
Step-by-step explanation:
Answer:
270 degrees
Step-by-step explanation:
If both numbers are negative it means its in the lower left quadrant, so to reach 7 and -3, that means we need to reach the lower right quadrant so a 270 degree turn works
There are a total of 66 people attending a carnival. The ratio of adults to children is 4 to 7. How many adults are attending the carnival? Enter your answer in the box. adults
Answer:
24 adults
Step-by-step explanation:
The equation to represent the scenario is
4x + 7x = 66
Combine like terms
11x = 66
Isolate x
x = 6
To find the amount of adults attending the carnival, substitute 6 with x.
6*4 = 24 adults
7*4 = 42 children
24 + 42 = 66 people in total
Help help help help help help help help help
Answer:
-4
Step-by-step explanation:
if you add negative 4 to each of the x's, it would give you the number of y
Answer:
-4
Step-by-step explanation:
the explanation is up in my answer
Convert to an exponential equation.
In 17 = 2.8332
Answer:
17 = e^2.8332
Step-by-step explanation:
Describe how to use the FOIL Method with (x+1)(x+2) as your example.
What amount did Kayla withdraw from her account if she wrote four checks of $54.28, $675.45,
$95.22, and $76.25?
Answer:
I believe that it is $901.20
Step-by-step explanation:
I make this assumption Because when we withdraw, we take away. If Kayla wrote these for checks, you just simply add them up and you get a total of $901.20.
We aren’t sure how much she had before withdrawing this money
Write an equation for the line with a slope 3 and Y intercept -2
A. y=-3x -2
B. y= 1/3 x -2
C. y= 3x - 2
with explanation pls
Answer:
C. y=3x-2
Step-by-step explanation:
Well we know the equation: y=mx+b
The slope is m, so m= 3
And the y-intercept is b, so b= (0,-2) or b=-2
Then,
Subsitute everything in:
y= 3x -2
I hope this helped :)
A jury pool has 25 men and 19 women, from which 12 jurors will be selected. Assuming that each person is equally likely to be chosen and that the jury is selected at random, use combinations to find the probability that the jury consists of
Answer:
The number of possible juries is C(30,12) = 30! / (30–12)! * 12! = 86,493,225. The number of possible all-female juries is C(16,12) = 16! / (16–12!) * 12! = 1820. So the probability of an all-female jury is 1820 / 86,493,225 = 0.0021%.
Step-by-step explanation:
Find the perimeter of the triangle.
inches.
The perimeter of the given triangular image will be 5x + 12.
What is a triangle?A triangle is a 3-sided shape that is occasionally referred to as a triangle. There are three sides and three angles in every triangle, some of which may be the same.
The sum of all three angles inside a triangle will be 180° and the area of a triangle is given as (1/2) × base × height.
As per the given triangular triangle,
Perimeter = 7 + (x + 4) + (4x + 1)
Perimeter = 7 + 5x + 5
Perimeter = 5x + 12
Hence "The perimeter of the given triangular image will be 5x + 12".
For more about triangles,
https://brainly.com/question/2773823
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40% of the students in mr. Watsons class speak a second language. If 10 students speak a second language how many students are in mr. Watsons class
Answer:
25 students are in mr. Watsons class.
Step-by-step explanation:
10/40=.25, so 25 students
Myra likes blueberry yogurt, but cherry yogurt is her favorite. Yesterday, she bought 3 cartons of cherry yogurt for every 2 cartons of blueberry yogurt. If Myra bought 3 more cartons of cherry yogurt than blueberry yogurt yesterday, how many cartons of cherry yogurt did she buy?
Answer:
9 cherry, 6 blueberry
Step-by-step explanation:
lets do a table!
cherry | blueberry
----------------------------
3 2
6 4
9 6
When there are 2 blueberry, there are 3 cherry. 3 is 1 more than 2. When there are 4 blueberry, there are 6 cherry. 6 is 2 more than 4. When there are 6 blueberry, there aare 9 cherry. 9 is 3 more than 6.
d) A patient is given 11÷2ml of medicine three times a day. How long does a bottle of 132 ml of medicine last?
Answer: 8 days.
Explanation;
11/2 = 5.5
5.5 x 3 = 16.5
132/16.5 = 8
Answer:
8 days
Step-by-step explanation:
So, 11/2 * 3 = (33/2) = 16.5 ml
Let the number of days medicine last be 'x'.
⇒ 16.5 * x = 132
⇒ x = 132/16.5
⇒ x = 8.
Therefore, Medicines last for 8 days.
Hope it helps!
I need help on my algebra test. I’m reaching out because I’m really stuck and have no teachers available. Can you help me solve for y?
where is the question?
You make $5000 per morth. If you spend 50% on necessitles, 30% on stuff you want and 20% of it you end up saving, how much money do you save per month?
Answer:
$1000 per month
Step-by-step explanation:
5000 dollars is 100 percent so we put 5000 over 100
5000/100
then since we need to find 20 percent of something, we put x over 20
x/20
Then we cross multiply
5000 times x
100 20
so 100x = 100000
and x = 1000
Good luck, and hope I did this correctly
Answer:
1000
Step-by-step explanation:
NECESSITIES
$2,500
WANTS
$1,500
SAVINGS AND DEBT REPAYMENT
$1,000
Anna adds 2oz of milk to an 18oz cup of coffee that is 10% milk. What is the percentage of the milk in the resulting mixture?
Answer:
19% of milk
lemme know if it helped
Step-by-step explanation: