Answer:
45
Step-by-step explanation:
2x+5x=63
7x=63
x=9
number of boys =5×9=45
What is the slope of (5,9) and (2,-3)
Answer:
the slope is 3,6
Step-by-step explanation:
im a guineas
(1) Evaluate the following;
(a) 25% of 80
(b) 80% of 125
(c) 60% of 120
(d) 45% of 15
(e) 50% of 60
(2) A shopkeeper keeps a record of the number of the items he sells in one day. Of the 150 items he sold, 46% were newspapers, 24% were pens, 12% were books, whilst the remaining 18% were other items. Calculate the number of each item he sold.
Answer:
a c d
Step-by-step explanation: took the test
To find the precent of something you multiply it by 1/100th of what precentage youre trying to find. That's a really weird way of explaining it... It's easier to show with examples.
Some numbers you probably know off the top of your head (whats 100% of 5 or 50% of 20?) But you can also move the decimal place over twice. 100 becomes 1.00 and 1x5 is 5. Same with 50%, it turns into 0.50 or 0.5. and 0.5x20 is 10...
0.25 x 80 is 20 so 25% of 80 is 20
0.8 x 125 is 100 so 80% of 125 is 100
0.6 x 120 is 72 so 60% of 120 is 72
0.45 x 15 is 6.75 so 45% of 15 is 6.75
0.5 times 60 is 30 so 50% of 60 is 30
and for the shopkeeper
0.46 x 150 is 69 so he sold 69 newspapers (nice)
0.24 x 150 is 36 so he sold 36 pens
0.12 x 150 is 18 so he sold 18 books
and 0.18 x 150 is 27 so he sold 27 "other items"
we can check this by adding together the items sold
69+36+18+27=150
(this only works if they gave us 100% of the items sold)
Which is the better buy: 4 cans of peaches for $6.44 or 3 cans for $4.71?
Answer:
3 cans for $4.71
Step-by-step explanation:
6.44/4= $1.61
4.71/3= $1.57
3 cans for $4.71 is the better buy
Answer:
4 cans is the better option because $6.44 divided by 4 is 1.61. And if you add $4.71 + $1.61 + $1.61 it would equal $7.43
Step-by-step explanation:
Joey is saving for a new bike. On the first day he saves $2. Each day after that, he doubles the number of dollars he saved on the previous day. How much money does he save on the 5th day?
Answer:
Help me with my only question after this. The answer would be 48
Step-by-step explanation:
Double by multiplying every day until the 5th Day
The law of cosines for TriangleRST can be set up as 52 = 72 + 32 – 2(7)(3)cos(S). What could be true about TriangleRST? Law of cosines: a2 = b2 + c2 – 2bccos(A) r = 5 and t = 7 r = 3 and t = 3 s = 7 and t = 5 s = 5 and t = 3
Answer:
D on edg
Step-by-step explanation:
Answer: OPTION D
Step-by-step explanation:
9x - y
- y when x=6 and y=3
Thank you!
Answer:48
Step-by-step explanation: 9(6) -3-3
=54 -3-3
=51-3
=48
Plug in x as 6 and plug in the 2y as 3 .And you subtract them from left to right (54-3-3)which gives u 49.
Hope it helps :)!
At a local swim meet the second place swimmer of the 100m freestyle had a time of 9.33 seconds the first swimmers time was 1.32 seconds faster than the second place swimmer the third place time was 13.65 seconds
Answer:
1st place: 8.01 seconds
2nd place: 9.33 seconds
3rd place: 13.56 seconds
Step-by-step explanation:
Wich is equivalent to sqrt10^3/4 x
Answer:
[tex]( \sqrt[4]{10} ) ^{3x} [/tex]
SOMEONE PLEASE HELP I WILL LITERALLY BLOW YOU I JUST NEED YOU TO ANSWER THIS pedros check register showed a balance of $550.94. his bank statement listed 3 items that did not appear in his register: earned interest of $4.36, a service charge of $5.50, and an ATM withdrawal of $150. Reconcile pedro's check register.
Answer:
$399.80
Step-by-step explanation:
earned interest means he should have $4.36 more.
Charge means $5.50 less.
Withdrawal means $150 less.
Therefore his balance should be 550.94+4.36-5.50-150 = $399.80
Find the slope, or rate of change, from the graph.
Answer:
-1/2
Step-by-step explanation:
slope is rise over run
or y change divided by x change
to find the slope you need to find points on the graph that meet exact points on the graph
i see (0,1) and (2,0)
to find slope without graph it would be (y2-y1)/(x2-x1)
in this case (0-1)/(2-0)
=-1/2
with graph you can count that it goes down -1 squares and to the right 2 squares
hope this helps
There are a total of 64 students in a filmmaking club and a yearbook club. The filmmaking club has 14 more students than the yearbook club. a. Write a system of linear equations that represents this situation. Let x represent the number of students in the filmmaking club and y represent the number of students in the yearbook club.
Answer:
x + y = 64
x = y + 14
Step-by-step explanation:
Given:
Total number of student = 64
x = number of students in filmmaking club
y = number of students in yearbook club.
Computation:
So,
x + y = 64
And,
x = y + 14
So
Number of students in yearbook club = 25
Number of students in filmmaking club = 39
The system of linear equations is x + y = 64 and x = y + 14.
Given that,
The total number of students is 64 .Here we assume the x be the number of students in filmmaking club .And, y be the number of students in yearbook club.Based on the above information, the calculation is as follows:
x + y = 64
And,
x = y + 14
Therefore,
We can say that
Number of students in yearbook club = 25
And, the number of students in filmmaking club = 39
Learn more: brainly.com/question/16115373
If y varies directly as x. Find the missing value for x for the coordinates (0.4, 5) and (x, 37.5).
Answer:
0.4_____x
5______37.5
use crossing:
37.5/0.4=93.75
93.75/5=18.75
im not sure tho
The first floor of a house consists of a kitchen, playroom, and dining room. The areas of the kitchen, playroom, and dining room are in the ratio 4 : 3 : 2. The combined area of these three rooms is 189 square feet. What is the area of each room? (Ex. Kitchen Area=______, Playroom Area=______, Dining Room=_____) *
Answer: See explanation
Step-by-step explanation:
From the question, we are informed that the areas of the kitchen, playroom, and dining room are in the ratio 4 : 3 : 2 and that the combined area of these three rooms is 189 square feet.
Therefore, Kitchen area = 4/(4+3+2) × 189 = 4/9 × 189 = 84 square feet
Playroom area = 3/(4+3+2) × 189 = 3/9 × 189 = 63 square feet
Dining room area = 2/(4+3+2) × 189 = 2/9 × 189 = 42 square feet
x/2 -10=3x-20
HELP ME WITH THIS ASAP
A)x+2=7
b)y+3=2
c)z+9=20
D)p+2=3
explanation also pls
Answer:
A)
x = 7 -2
x = 5
B)
y = 2 -3
y = -1
C)
z = 20 -9
z = 11
D)
p = 3 - 2
p =1
Step-by-step explanation:
You want the variable on one side of the equation to solve.
So we move the numbers on the left side to the right, when you do this you use the opposite operater. Addition and subtraction are opposite operators.
Jin observes an organism he has never seen before. He notices that the organism can undergo both sexual and asexual reproduction. Under what environmental conditions are the organism most likely to reproduce sexually?
A. conditions that are favorable and constant
B. conditions that promote the growth of many offspring
C. conditions that enable the organism to obtain abundant nutrients and water
D. conditions that make it difficult for the organism to get enough nutrients and water
Answer:
Choice D: conditions that make it difficult for the organism to get enough nutrients and water.
Answer:
Step-by-step explanation:
A major fishing company does its fishing in a local lake. The first year of the company's operations it managed to catch 190,000 fish. Due to population decreases, the number of fish the company was able to catch decreased by 8% each year.
Determine the value of r that would be used in your series formula.
A) .8
B) .08
C) 1.08
D) .92
You and a friend make a total of 63 bird houses. The ratio of bird houses you make to bird house your friend makes is 4 : 5 How many bird houses did your friend make?
Answer:
Your friend made 35 bird houses.
Step-by-step explanation:
If the ratio from your houses to your friends houses is 4:5, that means that for every 9 houses built, your friend did 5. So, every 18 houses built, your friend did 10. For every 27, your friend did 15, and for 36, your friend did 20, and for every 45, your friend did 25, and for every 54, your friend did 30, and for every 63, your friend did 35.
some soiled goods are sold for 2 /5 of their original price. what will be the selling price of a pair of trouser originally Costing#850.00
Answer:
$340.
Step-by-step explanation:
Given that some products, such as a pair of trousers in this case, are sold at 2/5 of their value, if the trousers cost $ 850, the following calculation must be performed to determine their sale value:
2/5 = 0.4
850 x 0.4 = X
340 = X
Therefore, selling them at 40% of their value, the trousers' sale value was $ 340.
Which expression can be used to calculate the rate per second at which the machine launches the balls?
A) 120 over 5
B) 5 over 120
C) 5 over 30
D) 30 over 5
Answer:
The answer is 30 over 5, 30/5
(Photo) Which table shows a relation that is not a function?
Applying the function concept, it is found that the top right relation is not a function.
For a relation to be classified as a function, each value of the input may be related to only one value of the output.In the top right relation, the input of x = -3 is related to two values of the output, y = 4 and y = -2, which is why it does not represent a function.
A similar problem which involves verifying which situation does not represent a function according to the input related to multiple outputs is given at https://brainly.com/question/12463448
Help me on number 24 plss
What it 12/14<9=
I really need help on this :
Answer:
This isn't a real question... but i can explain what you gave. 12/14 is less than 1, so it is less than 9.
1. Solve this system by ELIMINATION and SUBSTITUTION in your note book. Make sure your work is neat and easy to read.
−4x + y = 6
−5x − y = 21 2.
Verify your solution algebraically by plugging your solution into each system of equations. Be sure to show this on your paper.
Answer:
(x,y) = (-219/9, -818/9)
Step-by-step explanation:
PLEASE HELP ASAP 20 POINTS
GEOMETRY HW! What is the m< N in parallelogram LMNO?
Answer:
C. 106°
Step-by-step explanation:
parallelogram: Opposite angles are congruent.
I need somebody
(Help!) not just anybody Help
Answer:
D
Step-by-step explanation:
what is the value of the expression (a^3 + b^0)^2 where a = -2 b = 4 ?
Answer:
1938
Step-by-step explanation:
ITIS BECAUS.....SJFJCJAJ WHER FICOAK WERE KFKCKA
Answer:
When a = -2 and b = 4, this expression is equal to 49
Step-by-step explanation:
You can solve this by simply plugging in the given values and solving:
((-2)³ + 4⁰)²
= (-8 + 1)²
= -7²
= 49
From $80 to $64 *
Percent decrease
Answer:
20%
Step-by-step explanation:
hope this helps! can i have brainliest?
WILL GIVE BRAINLIEST
plsss help
Answer:
heyyy I will try My best to help you