Answer:
All the possible ratios of boys to girls that could be made are:
30:15
10:5
6:3
2:1
Step-by-step explanation:
If there are 30 boys and 15 girls in the room
We have :
Boys : Girls
30 : 15
a) 30 : 15
Dividing through by 3
= 10:5
b) 30 : 15
Dividing through by 5
= 6:3
c) 30 : 15
Dividing through by 15
= 2:1
Hence:
All the possible ratios of boys to girls that could be made are:
30:15
10:5
6:3
2:1
WILL GIVE BRAINLIEST!!!!!!!!!!
A sandcastle can be modeled with four 6-inch-tall square prisms, one on top of the other, as shown in the figure below.
The base of the bottom prism has a side length of 30 inches, and the base of each of the other three prisms has a side length 7 inches less than the side length of the base of the prism below it. What is the volume of the sand castle?
Answer:
A 2808
Step-by-step explanation:
From top to bottom
The top one is 9
Second layer is 16
Third is 23
Bottom is 30
I did 9 x 6, 16 x 6, 23 x 6, 30 x 6 = 54, 96, 138, 180
Added all of them up and got 468 then I times it by 6 and got 2808
Heyo! ;D
The volume of the sandcastle above is 10,596 cubic inches.
Hope this helped! If so, please lmk! Tysm and good luck!
In March, you have $220 in your savings account. By the end of April, your savings have increased by 30%. How much money do you have in your savings account at the end of April?
Answer:
$286
Step-by-step explanation:
220:100=2.2
2.2 x 30 = 66
220+66=286
Help plz I need to fin before today help
Answer:
BD = 12.1 (nearest tenth)
Step-by-step explanation:
∆ABC is an isosceles triangle, since it has two equal sides, AB and BC. Also, this means that <BAD and <BCD = 60° each.
BD divides ∆ABC into two equal parts.
Apply trigonometric ratio to find BD.
Reference angle = <BAD = 60°
Adjacent = AD = 7
Opposite = BD
Thus, we would have:
tan 60 = opp/adj
Tan 60 = BD/7
7*Tan 60 = BD
12.1 = BD
BD = 12.1 (nearest tenth)
Triangle ABC is a right triangle. Triangle A B C is a right triangle. Angle A C B is 90 degrees, angle C B A is 31 degrees, and angle B A C is 59 degrees. What is the relationship between angles A and B?
Answer:
see explanation
Step-by-step explanation:
Complementary angles sum to 90°
∠ CBA = 31° and ∠ BAC = 59° , sum to 90° (31° + 59° = 90° )
Thus
∠ A and ∠ B are complementary angles
Answer: They are complementary
Step-by-step explanation: took the test on edge!
A hair stylist offers haircuts and hair coloring to his customers. A haircut costs $18 and hair coloring costs $42. Yesterday, the hair stylist had 12 customers and earned a total of $288. How many of the hair stylists customers received hair coloring yesterday
Answer:
haircut =9 and hair color= 3
Step-by-step explanation:
Step one:
GIven data
let the haircut be x
and hair color be y in numbers.
so
18x+42y=288------------1
x+y=12---------------------2
from 1
x=12-y, put this in 2, we have
18(12-y)+42y=288
216-18y+42y=288
collect like terms
24y=288-216
24y=72
divide both sides by 24
y=72/24
y=3
put y= 3 in 2
x+3= 12
x= 12-3
x=9
A airplane travels a speed of 300 miles per hour how far in miles will the air plane travel in 20 minutes decmal or fraction answer
Answer: [tex]15[/tex] or [tex]\frac{15}{1}[/tex]
Step-by-step explanation:
We need to divide 300 by 20.
We get [tex]15[/tex] or [tex]\frac{15}{1}[/tex].
Answer:150
Step-by-step explanation: if you do 30/2=15 add a zero=150
The best player on a basketball team makes 95% of all free throws. The second-best player makes 90% of all free throws. The third-best player makes 80% of all free throws. Based on their experimental probabilities, estimate the number of free throws each player will make in his or her next 40 attempts. Explain.
Answer: See explanation
Step-by-step explanation:
The best player on a basketball team makes 95% of all free throws. The number of free throws the best player will make in his or her next 40 attempts will be:
= 95% × 40
= 95/100 × 40
= 0.95 × 40
= 38
The second-best player makes 90% of all free throws. The number of free throws the best player will make in his or her next 40 attempts will be:
= 90% × 40
= 90/100 × 40
= 0.90 × 40
= 36
The third-best player makes 80% of all free throws. The number of free throws the best player will make in his or her next 40 attempts will be:
= 80% × 40
= 80/100 × 40
= 0.80 × 40
= 32
3. Find the first five positive values (correct to three decimal places) of the inverse circular
relation arccos(0.6)
its 12.0
Step-by-step explanation:
Cristian says that when you raise a base number to a power of 3, it is impossible for the number to get smaller. Do you agree or disagree? Justify (prove) your answer.
Answer: I disagree
Step-by-step explanation:
I disagree with the statement from Cristian. When you raise a base number to a power of 3, it is possible for the number to get smaller.
For example, let's say our base number is negative 2, that is -2. Now let's find the cube of the number. This will be:
= -2^3 = -2 × -2 × -2 = -8
In this example, we can see that -8 is smaller than -2. This shows that the statement by Cristian is not correct.
denoted 5
HELP ME!!!!!!!! Which choice represents the fraction below as a single exponential expression? This is unit is The Division Law of Exponents.
The Pythagorean theorem is a2+b2=c2. Solve for b.
Answer: what is a and c
Step-by-step explanation:
We need a and c to solve for b.
Give the scale factor of figure A to figure B
Answer:
4
Step-by-step explanation:
Please help me !!! It’s due at 11:59pm
Answer:
it has to be 77.7
Step-by-step explanation:
height versus age domain and range
Answer:
While there is a strong relationship between the two, it would certainly be ridiculous to talk about a tree with a circumference of –3 feet, or a height of 3000 feet. When we identify limitations on the inputs and outputs of a function, we are determining the domain and range of the function.
Step-by-step explanation:
Julie says that she can perform a magic trick with numbers. She asks you to pick a whole number, any whole number. Square that number. Then add twice the your original number. Next add 1. Take the square root of the result. Finally, subtract your original number. Then Julie exclaims with authority, "Your answer is 1." Is your answer 1?
Answer:
No
Step-by-step explanation:
I picked 2. Then got 4. Then 8. Then 9. Then 81. Then 79.(i dont know if this is right)
A deli owner sold 90 sandwiches in one day. Of those sandwiches, 36 were pastrami. Write an equation to show what percent of sandwiches sold were pastrami
Answer:
36/90 * 100 = p
(p is percent sold that were pastrami)
Step-by-step explanation:
First, 36/90 (part over whole), simplifies to 40/100. We can multiply that by 100 to get a percentage. And that is your equation.
Write an equation that represents the line.
Use exact number ?
Answer:
what have we nothing to go buy
Answer:
y=(-4/3)x+2
Step-by-step explanation:
we have two points (3,-2) and (0,2) given from the statement
the equation of the lines is:
y=mx+b
m=slope
m=(y2-y1)/(x2-x1)
m=(2-(-2))/(0-3)
so we have the slope is
m=4/-3 =-4/3 =-1.3333
we need to find "b"
using the point (0,2)
we have :
2=m*0+b
2=b
finally, we have
the answer is y=(-4/3)x+2
0.002347 written to three significant figures is
Answer:0.00234
Step-by-step explanation:
Which of the following statements about “vesting periods” is TRUE?
(6.01 )which points on the scatterplot is an outlier point A point B point C point D
Answer: it’s point c
Step-by-step explanation:
Answer C
Answer:A
Step-by-step explanation:
you just told me but thanks for the points message me if you need more answers
Alicia received a utility bill in the amont of $90. This number represents 12% of her weekly income. Find Alicia's weekly Income amount.
O $1080
$780
O $102
$750
Answer:102
Step-by-step explanation:
Answer:
Alicia's weekly income is $750
Step-by-step explanation:
ok so to find the weekly income we have to see which of this options gives $90 when you multiply by 12%.
A. 1,08012% = 0.120.12 x 1080 = 129 too high❌
B. 7800.12 x 780 = 93 close❌
C. 1020.12 x 102 = 12.24 too low❌
D. 7500.12 x 750 = 90 correct answer✅
Please mark brainlest if you got it right, its just by clicking the crown on bottom of answer....you can do that when theres already two anwers,thank you :3❤️I need help on this one
Answer:
90
Step-by-step explanation:
you add 15 each time
75+15=90
Answer:
105
Step-by-step explanation:
sequence number x 3 = S1
S1 x 5 = S2
21 x 5 = 105
SOMEONE PLEASE HELP ME IM STRESSED OUT ILL GIVE OUT BRAINLIEST PLEASE DON’T ANSWER IF YOU DON’T KNOW THANK YOU
Answer:
2$
Step-by-step explanation:
16$ times 5 = 80
80 divided by 40 =2
Answer:
$2
Step-by-step explanation:
Complete the following problems. It is over everything we've done the last few days. Take your time.
Make sure you insert your equation when having to write equations.
Question 3
5 pts
In 2015, 2200 students attended Polaris High School. The enrollment has been
declining 2% annually. If this trend continues, estimate how many students will be
enrolled in 2030.(Remember it is people that you have.)
Answer:
Welcome to Gboard clipboard, any text you copy will be saved here.
1 question for brain list :)
Describe the life cycle of a sea horse. What is unique about the sea horse's life cycle?
The female's have intercourse with the male's in a way that I can't describe on this website, and thus, the males give birth to the babies.
please help me with this and pls don't answer if you don't know. thank you!
Answer:
[tex]consider \: triangle \: BDE \\m<BCD = m<BED \\ angles \: of \: triangle \: sum \: up \: to \: 180 ° \\ (14x + 4)° + 55° + 51° = 180° \\ 14x = 180° - (4 + 55 + 51)° \\ 14x = 70° \\ x = \frac{70}{14} \\ x = 5[/tex]
Answer:
x = 5
Step-by-step explanation:
all angles at corners in parallelogram must add to 360
bcd = 51 thus angle at opposite corner (bed) must also equal 51
adding = 51 + 51 = 102
angles at ebc and edc are also equal to each other
edf = 55 and cbf = 55
adding 55+55 = 110
360 - 110 - 102 = 148
divide by 2 for angles ebf and cfd
148/2 = 74
now solve
14x + 4 = 74
14x = 70
x = 5
Ben is shopping for tires for his car. After looking at several stores, he decides to purchase his tires from All About Tires. The cost of their tires is shown in the table below.
Study the table below...
All About Tires...
Number of Tires... X...
Total Cost... Y...
... 2, $62...
... 3, $93...
... 7, $217...
... 9, $279....
Based on the information in the table, how much will Ben pay for 4 tires?
Answer:
124
Step-by-step explanation:
63 +31 is 93 +31 is 124
Answer:
Answer:
124
Step-by-step explanation:
63 +31 is 93 +31 is 124
The question is in the picture
- I could really use some help !! Thank you so much !!
Answer:
Could you retake the photo plz so i can see the full question and answer choices
Step-by-step explanation:
A football team won 75% of 60 games in a season. How many games did they win?
Answer:45 games
Step-by-step explanation: 1+1 is 2 so yeah
Answer:
I think its 45 games
Step-by-step explanation:
75% times 60 = 45
*My school in middle school was rushed about math when we learned percent. Like the teachers were talking so fast, sorry if I'm wrong. <--- reason if I'm wrong.
10) Stan has $55. He wants to buy a belt that costs $14 and some T–shirts that cost $9 each. How many T–shirts can he buy?
a) Let n represent the number of T–shirts and translate into an inequality. b) How many T–shirts can he buy?
Answer:
4 T- shirts
Step-by-step explanation:
55- 14 = 41
41$ left and each T- shirt is 9$
count by 9s until you reach 41
9, 18, 27, 36 , 45
36 is the highest