Please help!!!!!
Billy and Susie were saving up to buy the new Xbox. Billy got $50 for his birthday and saved $20 each week. Susie already had $25 and saved $40 each week. Write a system of equations to describe this situation.
Answer:
50+ 20x= y
25+ 40x= y
Explanation:
For Billy and Susie, the starting values are $50 and $25. You simply add that to the money saved per week ($20 and $40).
x= number of weeks
find the height of a pyramid with the volume of 340 cubic inches and a base of 42.5 squared inches.
Answer:
24 in
Step-by-step explanation:
The volume of a pyramid of base area A and height h is V = (1/3)(A)(h).
It's easiest to solve this for h before plugging in numerical values. Solving for h, we get: 3V = A·h, or
3V
h = -------------
A
With A = 42.5 in² and V = 340 in³, we have
3(340 in³)
h = ---------------- = 24 in
42.5 in²
V = --------------
After 3 rounds, 43 students are eliminated from the freeze dance game. There are 56 students remaining. Find the number of students who started the game.
Factor 30-20 using gcf
Answer: 10
Step-by-step explanation:
Will mark brainlist plz anwser
Answer:
1,740 is the width.
Plsssssss help i need an answer look in the pic below
Answer:
A. 120 cm²Step-by-step explanation:
10 cm x 12 cm = 120 cm²
3⁶ x 3⁵ =
pls help i really need this
Answer:
3^11
Step-by-step explanation:
You add the 6 and the 5 to make 11.
Now you can multiply 3 to the power of 11.
So 3×3×3×3×3×3×3×3×3×3×3
Which would equal 177147.
Answer:
[tex]3^{11}[/tex] or 177147 (Depending on how you are supposed to answer)
Step-by-step explanation:
The first rule for exponents is "Product of powers rule: Add powers together when multiplying like bases". "3" is the base in this situation for both of the two values. Hence, they are common between the two of them. Therefore, we can apply this rule to the problem. If we add the exponents we get [tex]3^{11}[/tex].
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I will give you BRAINLIEST for the correct answer
I think 49 meters in 28 hours
Answer:
it's 49 meters in 28 hours
Step-by-step explanation:
what I did here is I said half of 49 meters which is = 25m (rounded off) and half of 28 hours is 14 hours
so it's
25 m in 14 hours compared to 14 meters in 10 hours
Triangle ABC is shown below.
What is the length of line segment AC?
07
A
09
2x
3x - 7
O 14
18
B
4x - 10
с
Answer:
14
Step-by-step explanation:
3x-7=2x(isosceles triangle)
x=7
AC=3(7)-7=21-7=14
The length of the side AC in the given triangle is 14 units.
What is a triangle?A polygon with three sides, angle and vertex is called a triangle.
Given is a triangle ABC, with sides, AB = 2x, AC = 3x-7 and BC = 4x-10,
We need to find the length of AC,
According to the figure, ∠B ≅ ∠C, therefore, according to the theorem of triangles, that sides opposite to congruent angles are congruent,
Therefore, AC = AB
2x = 3x-7
x = 7
AC = 3(7)-7
AC = 14
Hence, the length of the side AC in the given triangle is 14 units.
Learn more about triangle, click;
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A store buys bicycles for $60 then marks up the price by 40% to sell them. Currently, the store is having a sale on bicycles for 25% off the normal price. What is the sale price of the bicycles?
Answer:
140% of 60 is 84 and 75% of that is 63.
Hope this helps!
Answer:
its 63 besties
Step-by-step explanation:
Will Give Brainliest if Correct
Answer:
35
Step-by-step explanation:
Law of cosines
c^2=a^2+b^2-2ab(cos(A))
14^2=11^2+8^2-2(11)(8)Cos(A)
A=93.5833
Law of Sines
Sin(A)/a=Sin(B)/a
Sin(93.5833)/11=Sin(B)/8
B=34.7719
sara had 51 stickers and her dad had 13 stickers how many are in all
Answer:
64
Step-by-step explanation:
Answer:
64!
Step-by-step explanation:
(50 + 10) + (1 + 3)
(60) (4)
60 + 4 = 64!
A farmhouse shelters 15 animals. Some are goats and some are ducks. Altogether there are 42 legs. How many of each animal are there? Use the variable g to represent goats Use the variable d to represent ducks
Part A: Create a system of equations that can model this scenario.
Part B: Solve the system of equations Algebraically
Answer:g+d=152
g+2d=30
4g+2d=42
4g+2d-(2g+2d)=42-30
4g+2d-2g-2d =12 2g. =12
g=6
d+6=15
d=15-6
d=9
6 goats and 9 ducks
The number of animals are 6 goats and 9 ducks.
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value. Unitary method is a technique by which we find the value of a single unit from the value of multiple devices and the value of more than one unit from the value of a single unit. It is a method that we use for most of the calculations in math.
We are given that;
Number of farmhouse shelters=15
Total number of legs=42
Now,
Part A:
Let's use g to represent the number of goats and d to represent the number of ducks in the farmhouse.
We know that there are 15 animals in total, so:
g + d = 15
We also know that goats have 4 legs and ducks have 2 legs, and there are a total of 42 legs:
4g + 2d = 42
Part B:
We can solve this system of equations algebraically by using substitution or elimination.
Substitution Method:
Solve for one variable in terms of the other in one equation, and substitute into the other equation.
Solve for the remaining variable.
From the first equation, we know that:
g = 15 - d
Substitute g = 15 - d into the second equation:
4g + 2d = 42
4(15 - d) + 2d = 42
60 - 4d + 2d = 42
-2d = -18
d = 9
So there are 9 ducks in the farmhouse.
To find the number of goats, substitute d = 9 into g = 15 - d:
g = 15 - 9
g = 6
Therefore, by the unitary method the answer will be 6 goats and 9 ducks
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If eight ounces equals one cup, which expression would you use to find the number of ounces in six cups?
A 8×6
B 8+6
C 8−6
D 8÷6
Answer:
A
Step-by-step explanation:
PLEASE HELP!!! Pleaseee!
Answer:
a
Step-by-step explanation:
Which one is for inverse tangent?
Answer:
A
Step-by-step explanation:
i looked at my chart
Answer:
A
Step-by-step explanation:
Each student at school is given 7 folders on the first day of school. The number of folders
provided to students could be expressed as 7n (where n = number of students)
a) If there are 120 students in the school, the number of folders would be ___x__=____folders.
Can someone pls answer this. I will mark your brainlist if you answer correctly.
hello ! i need help
which figures appear to be congruent
Answer:
2 and 3
Step-by-step explanation:
Congruent means that they look the same. 2 and 3 are the only ones that look the same.
PLEASE HURRRY!!!!!!!!!!!!!
22+2y
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Answer: 11 + (2 + Y) type that in and submit
A swimming pool holds 18,000 gallons of water. The pool is 40% full. How many more gallons are needed to fill the pool?
Answer:
Since 40% of 18,000 gallons is 7,200 gallons filled up, then 18,000-7,200 gallons= 10,800 gallons left to fill up the poolStep-by-step explanation:
40% of 18,000 gallons means
40 x 180= 7,200 gallons
18,000-7,200 gallons= 10,800 gallonsThe block of ice used to weigh 152 pounds, but
now it only weighs 26.2 pounds.
Answer:
The block of ice probably melted. Is this a question or a statement?
Step-by-step explanation:
Jayla and Hailey were paying a dinner check, but they were not sure how much they should tip for their bill of $25.50. If a 12% tip is standard, about how much should they leave for the server?
Answer:
tip total $4
tip per person $2
total (bill plus tip) $29.
total each person $15
Step-by-step explanation:
Marcus ate one-half of a pizza with a radius
of 7 inches. If the pizza has 180 calories per 15
square inches, how many calories did he eat?
Answer:
700 calories
Step-by-step explanation:
Leo's age is 21 less than 2 because of his sisters age. If her sister is 23 years old how old is Leo
Find m∠CDE I already found x
Answer:
72 degrees.
2 parallel lines cut by a transversal result in alternate interior angles.
f(x) = 2x^2 − 6x + 3 for x = −1
ILL GIVE BRAINLIST FOR THE FIRST TO GET #6 RIGHT!!
(I’m marking brainliest) plzzz help me out!!!
Answer:
14, 16, 18, 20
Step-by-step explanation:
1) Carl had nine gallons of gasoline in his motorbike. After driving 115 miles, he has three gallons
left. What is Jamie's rate of change in miles per gallon?
Answer:
asc
Step-by-step explanation: