Answer:
Step-by-step explanation:
Let 'x' be the original price.
x + 39% of x = 197.38
x + 0.39 x = 197.38
1.39x = 197.38
x = 197.38/ 1.39
x = 142
Answer:
£120.40
Step-by-step explanation:
76.9782=76.98
197.38-76.98=120.40
How can you check that k ≥ 11 is the solution set to the inequality k + 14 ≥ 25?
Answer:
K= 11
Step-by-step explanation:
You solve for K by subtracting 14 by 25.
25-14= 11
When k is pluged into k[tex]\geq[/tex] 11 the statement is true because it is equal to 11.
When plugged into k+14[tex]\geq[/tex]25;
11+14 =25.
That statement is also true because 25 is equel to 25.
A pole that is 2.7 m tall casts a shadow that is 1.76 m long. At the same time, a nearby building casts a shadow that is 44.25 m long. How tall is the building? Round your answer to the nearest meter.
Answer:
81
Step-by-step explanation:
9x9
2x2
Answer: 81
Step-by-step explanation:
a. How far is the spot on the beach from the parking lot?
b. How far will he have to walk from the parking lot to get to the refreshment stand?
Show work please.
The altitude of the right triangle is the geometric mean of the 2 parts of the side it separates.
a. The answer would be sqrt(18*32)=24
The question to the second question can be answered by using the Pythagorean theorem.
32^2+24^2=1600=40^2
b. The answer would be sqrt40^2=40
The beach, the parking lot and the refreshment stand are illustrations of similar triangles.
The distance between the spot and the parking lot is 24 mThe distance between the refreshment stand and the parking lot is 40 m(a) The distance between the spot and the parking lot
Represent this distance with d.
So, the equivalent ratio is:
[tex]\mathbf{32:d = d : 18}[/tex]
Express as fractions
[tex]\mathbf{\frac {32}d = \frac{d}{ 18}}[/tex]
Cross multiply
[tex]\mathbf{d \times d = 32 \times 18}[/tex]
[tex]\mathbf{d^2 = 576}[/tex]
Take square roots
[tex]\mathbf{d = 24}[/tex]
Hence, the distance between the spot and the parking lot is 24 m
(b) The distance between the refreshment stand and the parking lot
Represent this distance with d.
Using Pythagoras theorem we have:
[tex]\mathbf{d^2 = 32^2 + 24^2}[/tex]
[tex]\mathbf{d^2 = 1600}[/tex]
Take square roots
[tex]\mathbf{d = 40}[/tex]
Hence, the distance between the refreshment stand and the parking lot is 40 m
Read more about similar triangles at:
https://brainly.com/question/14926756
Magdala is modeling 2.12÷4 how to cheeks change the place value blocks so she can make 4 equal shares
Answer and explanation:
If Magdala is trying to divide 2.12 by 4 then she would definitely need to change the place value of the dividend(2.12) and the divisor(4). In other words, both numbers need to be whole numbers.
To make 2.12 a whole number, we shift the decimal point two places to the right of the decimal point to get 212. We do same for 4 to get 400, since both numbers have to have their place values adjusted equally.
We divide 212 by 400 to get 0.53
Therefore 2.12 divided by 4= 0.53
Adele believes that 0.462 is written as "four tenths, sixty-two hundredths." Is she correct? Explain your answer. *
Answer:
Adele is not correct.
Step-by-step explanation:
The statement in itself wields an incorrect answer. However, when she states "sixty-two hundredths" it is further proven incorrect. This is because the 0.062 part of the total 0.462 would be pronounced as 62 thousandths.
Therefore, Adele is incorrect. The correct answer, however, would be: "Zero and four-hundred sixty-two thousandths."
Pls help me, Me and my mom have been doing this for like 3 hours
Answer:
9: -9
10: 18
11: 40
12: -4.5
1st number:-9
2nd number: -180
3rd number: -9
Step-by-step explanation:
I did it on paper but typed it on this stuff so you can understand it
PLEASE GIVE ME BRAINLIEST AND THANK YOU FOR THIS CHALLENGE VERY EASY TO DO.
Answer:
-9,4.5,90
Step-by-step explanation:
9) [tex]\frac{12xy}{x-y}[/tex]
So you basically substitute the values in for x and y which give you
[tex]\frac{12(3)(-1)}{3-(-1)}[/tex]
[tex]\frac{12(-3)}{3+1}[/tex]
[tex]\frac{-36}{4} \\-9[/tex]
10) Same thing:
[tex]\frac{4xy}{2x} \\\\\frac{4(3)(9)}{2(3)} \\\\\frac{4(27)}{6} \\\\4.5[/tex]
11) Same for this:
[tex]\frac{2}{3}(9x+xy)\\\\ \frac{2}{3}(9(5)(3)\\\\\frac{2}{3}( 135)\\[/tex]
3*45=135
[tex]2(45)\\90[/tex]
Based on this information, I want you to figure out the last one. If you need help reply to this answer and I will respond.
what is 4.2j+6.7j-5j-5
Answer: 5.9j-6
Step-by-step explanation:
arcsin0=? arccos0=? arctan1=?
Answer:
arcsin0= 0 degrees
arccos0= 90degrees
arctan1= 45 degrees
Step-by-step explanation:
To get arcsin0, let the unknown value be x
sin x = 0
Take arcsin of both sides
arcsin(sinx) = arcsin 0
x = arcsin0
x = 0 degrees
Hence arcsin0 = 0degrees
For cos x = 0
Take arccos of both sides
arccos(cosx) = arccos 0
x = arcscos0
x = 90 degrees
Hence arccos0 = 90degrees
For tan x = 1
Take arctan of both sides
arctan(tanx) = arctan 1
x = arctan1
x = 45 degrees
Hence arctan1 = 45degrees
Can someone help?
Find the measures of angles ACD, ACB, DAC, BAC
Step-by-step explanation:
ACD=ACB
DAC=BAC
2x=3x-29
x=29°
2x= 58°
ACD= 58°
ACB= 58°
DAC= 180-90-58= 32°
BAC= 32°
a) X -Y =10 y = 5
b) X = 20 , y = 6
c) X = 14, y = 4
Answer:
a) X - Y = 10
and,
X - 5 = 10
or, X = 10 + 5
or, X = 15
And i don't get the other two questions
Hope this helped
Hope this helped ALL THE BEST !!
He stated that the theoretical probability of rolling a 1 is greater than rolling any other number. Explain Sean’s error.
Answer:
Sean's error is that he just looked the number of times 1 occurred. The theoretical probability of rolling a 1 is found by dividing the number of desired outcomes by the total number of outcomes
Step-by-step explanation:
you have to study
Answer:
Sean's error is that he just looked the number of times 1 occurred. The theoretical probability of rolling a 1 is found by dividing the number of desired outcomes by the total number of outcomes
Step-by-step explanation:
I need help and please show work
Answer:
WebMath is designed to help you solve your math problems. Composed of forms to fill-in and then returns analysis of a problem and, when possible, provides a ...
Step-by-step explanation:
Find the area for 5 and 7
Answer and Step-by-step explanation:
The area of a circle:
[tex]A = \pi r^{2}[/tex]
d = 2r
Plug in the values.
5.
A = [tex]\pi 7^{2}[/tex]
A = 49[tex]\pi[/tex]
7.
58 = 2r
r = 29
[tex]A = \pi 29^{2}[/tex]
A = [tex]841\pi[/tex]
#teamtrees #PAW (Plant And Water)
John picked 35 flowers as a gift for his mom.
Kayla picked 25 flowers as a gift for her dad.
How many more flowers did John pick than Kayla?
Answer:
its 10 I hope it works for you have a good day
Which inequality makes the statement below true? |-13 BLANK -13 O A. = O B. < OC. S O D. >
PLEASE HELP ME
Answer:
Hey there the best answer would be A.=
Step-by-step explanation:
What type of pattern do linear functions have
Answer:
"adds by the same unbmer every time" is prob ur best bet
Step-by-step explanation:
Answer:
add by the same number everytime
Step-by-step explanation:
Write an equation of the line that passes through the given point and is parallel to the given line.
(4, 3); y = –x + 5
Remember that the standard form of a line equation is y = mx + b. Since you need a line that is parallel to y = 5x - 2, the first thing to do is use the same slope (m), which is 5 in this case.
The new line would look like this: y = 5x + b. I use "b" instead of -2, since we'll calculate a "b" for the new line by substituting the given point of (2, -1) into y = 5x + b.
-1 = 5*(2) + b
b = -11
The parallel line that goes through (2,-1) is y = 5x - 11
The new line is the blue, on the right. Note that it is parallel to the original (green) line and also intersects at (2, -1). (Each chart is is 0.5 unit).
Answer:
Remember that the standard form of a line equation is y = mx + b. Since you need a line that is parallel to y = 5x - 2, the first thing to do is use the same slope (m), which is 5 in this case.
Step-by-step explanation:
Mathematics-Session 1: No Calculator
1. Which situation could be modeled by the expression - 12 x
A.
B.
A piece of rope has a length of 12 feet. It is cut into 3-foot pieces.
A fish is swimming 12 feet below sea level. It then swims to of that depth.
A student deposits $12 into a bank account. He then deposits another of that
C.
amount.
D.
A bird decreases the height it flies by 12 yards. It then decreases the height it flies
by another ş yard.
Answer:
Think it is D I am not sure
Step-by-step explanation:
Write an expression that is the product of two factors and is equivalent to - 2x - 16.
Which expression is the product of two factors and is equivalent to - 2x - 16?
O A. -2x-1-15
OB. -2(x-8)
OC. (8x - 1)-(10x-15)
OD -2(X + 8)
Answer:
D
Step-by-step explanation:
Our answer will be D. We can eliminate choices A and C since they are not products. In other words, they are not multiplying factors together; they are only adding or subtracting.
Answer B does not work, as when it is multiplied out, we get -2x + 16.
When we find the product of D, we distribute the negative and get the correct product, -2x - 16
PLEASE HELPPPPP
DeShawn and Mike each improved their yards by planting rose bushes and geraniums. They
bought their supplies from the same store. DeShawn spent $13 on 1 rose bush and 4 geraniums.
Mike spent $56 on 10 rose bushes and 3 geraniums. Find the cost of one rose bush and the cost of one geranium.
Answer:
Cost of 1 rose bush = x = $5
Cost of 1 geraniums = y = $2
Step-by-step explanation:
DeShawn and Mike each improved their yards by planting rose bushes and geraniums. They bought their supplies from the same store.
Let us represent:
Cost of 1 rose bush = x
Cost of 1 geraniums = y
DeShawn spent $13 on 1 rose bush and 4 geraniums.
x + 4y = 13..... Equation 1
x = 13 - 4y
Mike spent $56 on 10 rose bushes and 3 geraniums.
10x + 3y = 56....... Equation 2
We substitute 13 - 4y for x in Equation 2
10(13 - 4y) + 3y = 56
130 - 40y + 3y = 56
Collect like terms
- 40y + 3y = 56 - 130
-37y = -74
y = -74/37
y = $2
Solving for x
x = 13 - 4y
x = _13 - 4 × $2
x = $13 - $8
x = $5
Therefore,
Cost of 1 rose bush = x = $5
Cost of 1 geraniums = y = $2
Hi! I have an math exam tomorrow and I really need you guys help.
[tex] \frac{1}{2} - \frac{2}{2} - \frac{4}{2} + ... + \frac{39}{2} + \frac{40}{2} [/tex]
please help!
Find the slope intercept of (2,-2) and (3,2)
Answer:
slope = y'-y/x' - x
= 2-(-2)/3-2
=2+2 /1
=4
slope = 4
Can this be reduced?
Identify the part of the drawing that is highlighted.
Answer:Its a line segment
Step-by-step explanation:
A line segment is between two points.
The blue dot is at what value on the number line?
how to factor with the quadratic fourmula. n2-18n+66=0
There are 7 more girls than boys in an 8th grade class. There are a total of 53 students in this 8th grade class. How many girls are in this 8th grade class
A.)17
B.)21
C.)27
D.)30
Answer:
17
Step-by-step explanation:
I hope it correctly does come true as I am in the process
What is the height of the screen?
Answer:
2880
Step-by-step explanation:
What are the aspects of mathematics
Answer:
The four thinking math standards are problem solving, communication, reasoning, and connections. The content math standards are estimation, number sense, geometry and spatial sense, measurement, statistics and probability, fractions and decimals, and patterns and relationships.
Step-by-step explanation:
(G0OGLED THE ANSWER)
Options are increase/decrease