After Kwan spent $5 of the money he earned for mowing lawns, he had $15 left. Which equation represents how to find the amount Kwan had before spending the money?
Answer:
$20 was how much money he had before he spent any money.
Step-by-step explanation:
So, with any problem like this, all you have to do to figure out the answer is to add how much money is left and how much was spent. So, like this:
Amount left + Amount spent = Original Amount
10
Colin invests £1700 into his bank account.
He receives 10% per year simple interest.
How much will Colin have after 3 years?
Give your answer to the nearest penny where appropriate.
Answer:
£510
Step-by-step explanation:
Simple interest = (principal × rate × time) / 100
Principal = £1700
Rate = 10%
Time = 3 years
Simple interest = (principal × rate × time) / 100
= (1700 × 10 × 3) / 100
= 51,000/100
= 510
Simple interest = £510
What is the 2nd term of the linear sequence
2, 5, 8, 11, 14....
Answer:
5
Step-by-step explanation
Answer: 5
Step-by-step explanation:
aₙ = a + (n - 1) d
n = the term of the sequence that you're looking for (2)
a = 1st term of sequence (2)
d = common difference (3)
a₂ = 2 + (2 - 1) 3
a₂ = 2 + (1 × 3)
a₂ = 2 + 3
a₂ = 5
It's also given btw but in case you wanted to find other terms of the sequence.
What is the unit rate of 48 newspapers in 6 piles?
Answer:
[tex] \sf8 \: \frac{newspapers}{plie}\: or\: \text{8 newspapers per pile} [/tex]
Step-by-step explanation:
to understand thisyou need to know about:unit ratelet's solve:according to the question
48newspapers/6piles8 newspapers/plieAnswer:
Solution given:
48 newspaper in 6 pile=48news paper per 6 piles
=48/6=8 news paper per pile
the unit rate of 48 newspapers in 6 piles is 8 news paper per pile
PLEASE help Will brainlist 50 points!!!!!!!!!!!!
Answer:
5/6
4/5
6/7
Step-by-step explanation:
Answer:
6 and 7; 1 and 4; 4 and 5
Step-by-step explanation:
a supplementary angle is when two angles added together equal 180 degrees. In other words, if two angles make a straight line when put together, they are supplementary.
In the triangle shown, find the length of the hypotenuse.
If this question doesn’t get answered I’m gonna be stressed out even more. I don’t know any of the answers to any of these questions.
NEED HELP, LIMITED TIME, HURRY
Which of the following digits is in the hundredths
place in the number above? 34,567.89
A.4
B.5
C.6
D.8
E.9
Answer:
9
Step-by-step explanation:
here you go!
A pattern is made using identical rectangular lines.
11 cm
7 cm
Find the total area of the pattern.
Answer:
i think 18 since 11+7=18
i think this it is not corect 100%100
Describe a transformation or series of transformations that demonstrates the congruence between figures A and B.
Answer:
90 clockwise (or counterclockwise) rotation and then a reflection over the axis between the two shape (those two steps go in any order)
Step-by-step explanation:
for this lets mark the innermost point of each shape a (blue or A) and a' (red or B)* and the second point b and b'
here we see that the two shapes are in a position to where they seem reflected over a non-existent third diagonal axis, though this is not the case, we need to bring the shape into a position where it can be transformed to the quadrant of shape B and overlap the shape
so when you have a reflection over a diagonal axis, we can rotate or reflect the shape to a new quadrant, and perform the step thats not the first, so say we made a reflection over the X-axis, the shape is now in the lower half of the graph with shape B, from here we perform our last step wich is to rotate the shape into the quadrant of shape B in a clockwise motion, now a and a' overlap and b and b' overlap, same for c, c',d and d'
(*the ' in this case is called a prime symbol, when used, distinguishes two points or lines on a graph, A' = A prime)
Find the measure of the given angles. Show work!!
Answer:
m∠A = 45⁰
m∠B = 75⁰
Step-by-step explanation:
Given question 4;
m∠A = x + 51
m∠B = 81 + x
m∠C = 60⁰
The value of the missing angles can be determined by the finding the value of x first;
m∠A + m∠B + m∠C = 180⁰ (sum of angles in a triangle)
(x + 51) + (81 + x) + 60⁰ = 180
(x + x) + (51 + 81 + 60) = 180
2x + 192 = 180
2x = 180 - 192
2x = -12
x = -12/2
x = -6
Thus, the values of the angles are calculated as follows;
m∠A = x + 51
= -6 + 51
= 45⁰
m∠B = 81 + x
= 81 - 6
= 75⁰
Find the circumference of a circle with diameter, d = 9.06m. Give your answer rounded to 2 DP
Tonya pays $300 each month to rent an office where she earns $25 per hour tutoring students. Which equation represents Tonya’s profit, y, for working
x hours?
Answer:
y = 25x – 300
Step-by-step explanation:hope I helped
What is the area of this compound shape?
Answer:
139.36
Step-by-step explanation:
first you do 8*8 because that would be the area of the square part
8*8=64
then find the area of the semicircle
first the Radis of it is 4 because 8/2=4
A=3.14R^2/2
3.14*4^2/2
3.14*16/2
50.24/2
25.12
now because there are 3 of the semicircles you do
25.12*3
75.36
then you add the 64 from the square to get your answer
75.36+64
139.36
What is the value of the expression shown?
407 - 16) + (-3)
Answer:
388
Step-by-step explanation:
i looked it up
Tan
Part A
What is the measure, in degrees, of ZPTR? Enter your answer in the bo
Answer:
[tex] \purple {\bold {m\angle PTR=136\degree}} [/tex]
[tex] \orange {\bold {m\angle PQR=68\degree}}[/tex]
Step-by-step explanation:
PS and RS are tangents to the circle with center T at points P and R. (given)
TP and TR are radii of the given circle.
[tex] \therefore PS\perp TP\: \&\: RS\perp TR[/tex]
(radius is perpendicular to the tangent)
[tex] \therefore m\angle TPQ= m\angle TRS =90\degree [/tex]
In quadrilateral SPTR
[tex] m\angle TPQ+ m\angle TRS+m\angle PSR +m\angle PTR=360\degree [/tex]
[tex] 90\degree+ 90\degree+44\degree +m\angle PTR=360\degree [/tex]
[tex] 224\degree +m\angle PTR=360\degree [/tex]
[tex] m\angle PTR=360\degree - 224\degree[/tex]
[tex] \purple {\bold {m\angle PTR=136\degree}} [/tex]
By inscribed angle theorem:
[tex] m\angle PQR=\frac{1}{2} \times m\angle PTR[/tex]
[tex] m\angle PQR=\frac{1}{2} \times 136\degree[/tex]
[tex] \orange {\bold {m\angle PQR=68\degree}}[/tex]
URGENT PLEASE HELP!!!! GIVING BRAINLIEST!! If you answer this correctly ill answer some of your questions you have posted! (33pts)
Answer:
9.38 in²Step-by-step explanation:
Area formula:
A = 1/2bhFind h (not drawn, it would be segment AD, where AD⊥CB):
h/4 = sin 42°h = 4 sin 42°h = 2.68 inFind area:
A = 1/2(7)(2.68)A = 9.38 in²Answer:
area of triangle =1/2×sin42×AC×BC
=1/2×sin42×4×7=18.74/2=9.36in²
Step-by-step explanation:
is area.
Pablo and max's follows a flight pattern approximatley modled by the equation h(t)=-8t^2+16t+2 where h(t)is their rocket's height in meters t seconds after launch. How many seconds was their rocket in the air
Answer: 2.11 s
Step-by-step explanation:
Given
Equation of rockets height is given by
[tex]\Rightarrow h(t)=-8t^2+16+2[/tex]
Height will be zero once the rocket lands on the ground
So, we can write
[tex]\Rightarrow h(t)=0\ \text{or}\ -8t^2+16t+2=0\\\Rightarrow 8t^2-16t-2=0\\\\\Rightarrow t=\dfrac{16\pm \sqrt{(-16)^2-4(8)(-2)}}{2\times 8}\\\\\Rightarrow t=\dfrac{16\pm \sqrt{320}}{16}\\\\\text{Neglecting negative value of t}\\\\\Rightarrow t=\dfrac{16+17.888}{16}=2.11\ s[/tex]
The rocket of height h(t) and modeled equation [tex]\rm h(t)=-8t^2+16t+2\\[/tex]
was in the air for 2.1 seconds.
What is a quadratic equation?The given equation is [tex]\rm h(t)=-8t^2+16t+2\\[/tex], where h(t) is the rocket's height in meters t seconds after launch.
In algebra, a quadratic equation is an equation that can be written in standard form as
[tex]\rm ax^{2}+bx+c=0}[/tex]
where x represents variable, and a, b, and c represent coefficient.
The given equation is
h(t) = 0
[tex]\rm h(t)=-8t^2+16t+2\\h(t)=-8t^2+16t+2 = 0\\[/tex][tex]\rm h(t)=-8t^2+16t+2\\[/tex]
The roots will be
[tex]\rm {\displaystyle t={\frac {-b\pm {\sqrt {b^{2}-4ac}}}{2a}}.}[/tex]
[tex]\rm {\displaystyle t={\frac {16\pm {\sqrt {(-16)^{2}-4\times 8\times 2}}}{16}}.}\\\rm {\displaystyle t={\frac {16\pm {\sqrt{320} }}{16}}}\\\rm {\displaystyle t={\frac{16+17.88}{16}\\[/tex]
Here, we have neglected the negative value of t
t = 2.1 seconds
So, the rocket of height h(t) and modeled equation [tex]\rm h(t)=-8t^2+16t+2\\[/tex]
was in the air for 2.1 seconds.
Here learn more about quadratic equations here:
https://brainly.com/question/2263981
Sam and Odel have been selling frozen pizzas for a class
fundraiser. Sam has sold half as many pizzas as Odel.
Together they have sold a total of 126 pizzas. How many
pizzas did Sam sell?
Answer:
Odel has sold 84 Pizzas and Sam has sold 42
Step-by-step explanation:
:p
1.
4 cm
5 cm
3 cm
A. What is the area of the figure above?
B. What is the volume of the figure above?
Answer:
90 cm^3
5*4*3=90
Solve 2 s 2x + 4 < 10 for x.
0-1x<3
O 1
0-1
O 15x<3
2x+4<10
Subtract 4 from both sides to cancel it out.
2x+4<10
-4 -4
2x<6
Now divide 2 from both sides to cancel that out.
2x<6
/2 /2
x<3
So that's the answer.
---
hope it helps
13. You buy a new monitor for your desktop computer for $295. The store charges 9% in sales tax. How much sales tax is added to the cost of your monitor?
14.What is the sale price of your monitor after the sales tax has been added to the original cost?
Find the value of x in the angle pair.
Answer:
[tex]\huge\boxed{\tt{x = 50}}[/tex]
Step-by-step explanation:
3x + 30 = 180 (Angles on a straight line add up to 180 degrees)
Subtract 30 to both sides
3x = 180 - 30
3x = 150
Divide 3 to both sides
x = 150 / 3
x = 50
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807Answer:
[tex]\Large \boxed{\sf x=50}[/tex]
Step-by-step explanation:
Angles on a straight line add up to 180°
[tex]30+3x=180[/tex]
Solve for x
[tex]3x=150[/tex]
[tex]x=50[/tex]
What is the answer pls
Answer:
B x
C 20
E 100
Step-by-step explanation:
Just say yes if equivalent or no if not equivalent
5x and x + 5
Answer:
I am pretty sure there equivalent
me ayudancon esto?plisssss
Answer:
5/7
Step-by-step explanation:
Multiply the numerator with the numerator and the denominator with the denominator. This makes the fraction 30/42. Simplify this to get 15/21. You can simplify it again to get 5/7.
Hope this helps
Solve the system using substitution: {y=5x-21 y=-7x+15
Answer:
code lazar
Step-by-step explanation:
Evaluate the expression for p= -3
64 - 9p
Enter only the simplified numerical value after substituting the
value for the variable and doing the math.
Answer:
The answer is 91.
Step-by-step explanation:
If p = -3, then your equation is 64 + (-9 × -3).
-9 times -3 is 27.
27 + 64 = 91
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
An elevator on the 10th floor goes down 9 floors. Then it goes up 19 floors, down 3, and finally down 12. What floor does it end up on? Write an equation to show how you found your answer.
Answer: it will be subtract try all things possible
Step-by-step explanation:
Martina borrowed $600 from her uncle. She agreed to pay her uncle back in 9 months at an interest rate of 6% per year. How much interest will she pay and what amount will she repay her uncle?
dude the answer is 36828337
work out the size of angle A
Answer:
The measure of A is 93
Step-by-step explanation:
Here, we want to get the measure of angle A
we can start by getting the measure of angle C
Mathematically, we can use sine rule
It states that the ratio of the length of a side of a triangle and the sine of the angle it faces is constant
So to get C, we have the following;
9/sin 38 = 11/sin C
sin C = 11sin 38/9
sin C = 0.7525
C = sin^-1(0.7525)
C = 48.80
This is approximately 49
To get A,
we know that if we added the measure of interior angles of a triangle, the addition is 180 degrees
Thus, we have it that:
38 + 49 + A = 180
A = 180-38-49
A = 93