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
Find the measure of each acute angle.
3xº
2x
19
3.2
and 20
Right angled triangle ✅
90° + 3x + 2x = 180° {sum}
5x = 90
x = 90/5 = 18
x = 18
acute angle : 3x = 3 × 18 = 54°
2x = 2 × 18 = 36°
Levi bought 5 chicken wings for $9.00. What's the unit cost of one wing?
Answer:
$1.8
Step-by-step explanation:
9/5 = 1.8
Hope this helps! You can ask me more questions in the comments if you want! :)
In the following figure, find the value of x
Answer:
18
Step-by-step explanation:
All the angles added up will equal 180 degrees (recall a straight line has an angle of 180 degrees).
Therefore, you can create the following equation and solve for x:
[tex]2x+3x+2x+3x=180\\10x=180\\x=\frac{180}{10}\\x=18[/tex]
Answer:
x=18
Step-by-step explanation:
equation: 90=2x+3x
. Trent’s mom said he could spend no more than
$12 for rides at the carnival. If the rides cost
$0.75 each, how many rides can he go on?
thanks for the help..
Answer:
16 rides
Step-by-step explanation:
If he has $12 in total and each ride costs 75 cents, you can divide 12 by .75 to find how many rides he can go on.
12/0.75 = 16
Peter has $12 in nickels and quarters. Altogether, he has 72 coins. Use the variables n and q to write and solve a system of equations to determine how many of each coin she has.
Step-by-step explanation:
n= nickels
q= quarters
Create a system of equations
n + q =72 number of coins
0.05n + 0.25q = 12 amount in money
solve by elimination ( anything would be fine)
n + q = 72
4( 0.05n + 0.25q = 12)
n+ q = 72
-
0.2n + q = 48
0.8n = 24
n= 30
now use substitution to find how many quarters she has
30 + q = 72
q = 42
He has 30 nickels and 42 quarters
Sorry for skipping some steps
I hope this helps!!!
Please help! Lauren is 16, and Cara is 14. Their grandad gives them $1200 to share in the ratio of their ages. How much money do they each get? Show your work
Answer:
16/14= 8/7 = lauren/ cara
8x+7x= 1200
15x= 1200
x= 1200/15
x=80
lauren= 8x= 8(80)= 640
cara= 7x= 7(80)= 560
Step-by-step explanation:
find the odds of an event occurring, given the probability 1/11
Answer:
1:10
Step-by-step explanation:
Any help on this question?
Answer:
50%
Step-by-step explanation:
Total students = 12 + 18 + 6 = 36
Seventh-graders = 18
18/36*100 = 50%
Answer:
Step-by-step explanation:
12 are 6th graders
18 are 7th graders
6 are eight graders
total=36
7th graders are 50%
18........................?%
36.........................100
18*100/36=50
PLS HELP ILL MARK BRAINLYEST
Answer:
Step-by-step explanation:
1 - a
2 - c
3 - b
This photo is the problem I have to solve for x help please
Answer:
1
Step-by-step explanation:
Ms. Emily buys a hat and gloves with a coupon for 30% off her entire purchase. The glove cost $35 before the discount. Her bill before tax is 44.80
Answer:
Step-by-step explanation:
Okay, I'm assuming you want us to figure out how much the hat costs.
To start off, let's figure out how much the gloves cost after the discount. 35 / 100= 0.3. We multiply that by 70%, since that is how much of the price is going to be left over after deducting 30%. We get $24.50.
So;
$44.80 of the total bill - $24.50=$20.30.
So we now know the hat cost $20.30.
solve
thanks and give how you done it too
Answer:
x = 4
Step-by-step explanation:
7x + 16/11 = 4
11 x 7x + 16/11 = 4 x 11
7x + 16 = 44
7x + 16 - 16 = 44 - 16
7x = 28
7x/7 = 28/7
x = 4
Check:
7x + 16/11 = 4
7(4) + 16/11 = 4
28 + 16/11 = 4
44/11 = 4
4 = 4 (note that this number is not the answer, just to check if each side is balanced, the actual answer is 4)
Bam !
Hope this helps ^w^
Answer:
x = 4
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityStep-by-step explanation:
Step 1: Define
[tex]\displaystyle \frac{7x + 16}{11} = 4[/tex]
Step 2: Solve for x
Multiply 11 on both sides: [tex]\displaystyle 7x + 16 = 44[/tex]Subtract 16 on both sides: [tex]\displaystyle 7x = 28[/tex]Divide 7 on both sides: [tex]\displaystyle x = 4[/tex]Step 3: Check
Plug in x into the original equation to verify it's a solution.
Substitute in x: [tex]\displaystyle \frac{7(4) + 16}{11} = 4[/tex][Frac] Multiply: [tex]\displaystyle \frac{28 + 16}{11} = 4[/tex][Frac] Add: [tex]\displaystyle \frac{44}{11} = 4[/tex][Frac] Divide: [tex]\displaystyle 4 = 4[/tex]Here we see that 4 does indeed equal 4.
∴ x = 4 is the solution to the equation.
A shirt is on sale for 1 the original cost, what would be an equivalent decimal and
percent for
ONE
?
Decimal
Percent
Answer:
0.2 is the answer...........
HELP ME PLEASE 50PT PLEASE AND TY
Answer:
1) c. 10 1/2 + 1/2 m > 14
2)
[tex]x\leq 3[/tex]
hope this helped
Answer:
how to do this
Step-by-step explanation:
i need it
Gavin spent $35.45 on four pairs Jeans each pair of Jean cost the same amount. Gavin wanted to find the price for each pair of jeans
Answer:
Each pair costs $8.86
Step-by-step explanation:
Divide 35.45 by 4
You get 8.8625
Round that to the nearest hundredth.
You get $8.86
Hope this helped!
In 2 ½ hours, Joaquin can bake 4 dozen cookies. What is his unit rate in dozen cookies per hour? In fraction form please
Answer:
maybe 2 1/2 ÷4=0.625
5/8?
if you put money into a savings account that earns $84.00 over seven years at a rte of 3%, how much money did you put into the account?
Answer:
Step-by-step explanation:
To solve this, we would use the formula for calculating simple interest which is:
Interest = PRT
Then, we will slot in the values given which will be:
84 = P × 3% × 7
84 = P × 0.03 × 7
84 = 0.21P
P = 84/0.21
P = $400
The Principal is $400
Andre and Elena are each saving money Andre starts with $100 in his savings account and adds five dollars per week Elena starts with $10 in her savings account and add 20 each week after four weeks who has more money in her savings account
Answer: Andre
Step-by-step explanation: coz I juss know..
Answer:
Andre
Step-by-step explanation:
This situation can be modeled with the equations:
A = 100 + 5w
E = 10 + 20w
Let w represent the number of weeks that have passed since they have started saving money. Andre(A) has saved $5 per week and Elena(E) has saved $20 per week. Substituting 4 into the equation (because 4 is the number of weeks that have passed so far) and evaluating we come to the realization that Andre still has more money than Elena because he now has $120 and Elena has $90.
1000cm in the ratio of 4:5:6
Step-by-step explanation:
4+5+6=1000
1000/15
4 . 5. 6= 266.4 . 333. 399
9514 1404 393
Answer:
266 2/3 : 333 1/3 : 400
Step-by-step explanation:
The total of ratio units is 4+5+6 = 15, so the fraction of 1000 that each portion represents is ...
4/15 : 5/15 : 6/15 = 4/15 : 1/3 : 2/5
Multiplying 1000 by these fractions gives ...
1000(4/15) : 1000/3 : 1000(2/5)
= 266 2/3 : 333 1/3 : 400
?????????????????????
Answer:
3/2 = X
Step-by-step explanation:
Help I don’t understand please help
Answer:
x = 9.9 (or √98) (or 98¹/²)
y = 7
Step-by-step explanation:
triangle is equilateral right triangle, y = 7
x² = 7² + 7² = 98
x = 9.9 (or √98) (or 98¹/²)
hiii please help i’ll give brainliest if you give a correct answer ty!!
Answer: 1.5 hours
Step-by-step explanation:
14 times in 21 hours
1 time would be 21 ÷ 14
21 ÷ 14 = 1.5
It took 1.5 hours to orbit the earth 1 time
Hope I helped!
A circle has an area of 1809.5573. What is the radius? (round to the nearest whole number)
Answer:
2000.000000000000000000
Answer:
r≈24
Step-by-step explanation:
The radius is 23.999999545959 but once rounded to the nearest whole number that is 24
Find the range of the given data set.
-4, -3, -1, -1, 0, 1
-3
3
5
-5
Answer:
10
Step-by-step explanation:
Range of data = Highest value - Lowest value
Here,
Highest value = 5
Lowest value = -5
Range = 5 - (-5)
= 5 + 5
= 10
Gasoline costs $3.65 a gallon Which is an estimated cost of 14.2 gallons of gasoline?
Answer:
the answer is $51.83
Step-by-step explanation:
Answer:
40 or 56 because 3.65 x 14.2 is gonna equal 51.83
I need help with this one can someone tell me??
Answer:
x=22 y= 46
Step-by-step explanation:
2-24 2-48
Answer:
Equations are :---
[tex]3x - 2y = 24............... (i) \\ x + 2y = 48..................(ii)[/tex]
By adding the both equations we get,
[tex](3x - 2y) + (x + 2y) = 24 + 48 \\ 4x = 72 \\ x = \frac{72}{4} \\ \boxed{ x = 18} \\ [/tex]
Putting the value of x in equation (ii) we get
[tex]18 + 2y = 48 \\ 2y = 48 - 18 \\ 2y = 30 \\ y = \frac{30}{2} \\ \boxed{y = 15}[/tex]
Therefore, x=18 and y=15 is the right answer.Select the FALSE statement
A) Dilations either increase or decrease the lengths of line segments.
B) Dilations increase angle measures.
C) A dilated triangle is similar to the original triangle.
D) Dilations are a type of transformation
9514 1404 393
Answer:
B) Dilations increase angle measures.
Step-by-step explanation:
Dilations have no effect on angle measures, but they uniformly change the size and spacing of line segments. They are a non-rigid transformation that leaves geometric figures similar to the original.
The false statement is B.
Find square roots of
0.81
Answer:
0.9
Step-by-step explanation:
hope it helps
.....................
Answer:
The square root of 0.81 is equal to 0.9
is 5.778777... a rational number
Answer:
yes
Step-by-step explanation:
it is a rational number
c) 2×x×3×y
im just typing now bc it says i need 20 characters but yh
Answer:
the answer is 6xy , hopefully that helped you
Answer:
2x^9 x
Step-by-step explanation:
Reformatting the input :
Changes made to your input should not affect the solution:
(1): "x3" was replaced by "x^3".
STEP 1 :
Multiplying exponential expressions :
1.1 x4 multiplied by x3 = x(4 + 3) = x7
The Equation at the end of step 1 :
((2x7 • x) • x) • y
STEP 2: Final result :
2x^9 y
Hope this helps!
Brain-List?