Concept explainers
(a)
Write an equation to represent V’s savings y after x weeks.
(a)

Answer to Problem 42PPS
y = 15x + 50
Explanation of Solution
Given:
V is saving his money to buy a new satellite radio for his car.He wants to save enough money for the radio and one year of satellite radio service before he buys it .He started saving for the radio with $50 that he got for his birthday.Since then , he has been adding $15 each week after he cashes his paycheck.
Calculation :
The savings of V = y
Number of weeks = x
Since he saves $15 each week , so , he saves in x weeks = 15x
Initially , he saved $50
So, the total savings after x weeks = 15x + 50
The equation that represents V’s savings y after x weeks :
y = 15x + 50
(b)
Graph the equation is part (a)
(b)

Explanation of Solution
Calculation :
From part (a)
The equation that represents V’s savings y after x weeks :
y = 15x + 50
Make a table to locate the coordinates of the equation:
x | y = 15x + 50 |
0 | 50 |
10 | 200 |
Now, plot the points and join them to draw the graph of the equation y = 15x + 50:
(c)
Find the number of weeks taken by V to save $150.
(c)

Answer to Problem 42PPS
After 7 weeks , V will have atleast $150.
Explanation of Solution
Calculation :
From part (a),
The equation that represents V’s savings y after x weeks :
y = 15x + 50
where
The savings of V = y = $150 (given)
Number of weeks = x
Substitute the value of y in the equation and solve for x :
So, after 7 weeks , V will have atleast $150.
(d)
Find the number of weeks taken by V to save enough money.
(d)

Answer to Problem 42PPS
It will take about 12 weeks to save enough money.
Explanation of Solution
Given:
A satellite radio costs $180 .Satellite radio service costs $10 per month.V started saving two weeks ago.
Calculation :
From part (a),
The equation that represents V’s savings y after x weeks :
y = 15x + 50
where
The savings of V = y = $150 (given)
Number of weeks = x
He wants to pay for the radio and 1 year of service, so , total amount required by V is :
He is saving for two weeks now , so, the amount V has already saved :
So, he has $80 with him already.
Now, he needs to save = $300 - $80 = $220
So, substitute y = 220 in the equation to find the number of weeks:
So, it will take about 12 weeks to save enough money.
Chapter 3 Solutions
Glencoe Geometry
Additional Math Textbook Solutions
Basic Business Statistics, Student Value Edition
A First Course in Probability (10th Edition)
Thinking Mathematically (6th Edition)
Elementary Statistics (13th Edition)
- A. 90.6 square meters B. 91.4 square meters C. 92.5 square meters D. 93.7 square metersarrow_forwardAn ice cream cone is 10cm deep and 4cm across the opening of the cone. Two sphere-shaped scoops of ice cream, which also have diameters of 4cm, are placed on top of the cone. Use π≈3.14 and round your answers to the nearest hundredth.a) What is the volume of the cone? cubic centimetersb) What is the total volume of the two sphere-shaped scoops of ice cream? cubic centimetersarrow_forwardFind mSWarrow_forward
- Select all solids for which the formula V = Bh applies. A. a triangular prism B. a triangular pyramid C. a square pyramid D. a rectangular prism E. a cone F. a cylinderarrow_forwardThis is my h/w ,Required to find the region of shaded sector ,I don't really know how to deal with this tasks ,so if someone could help me to understand them it would be awesome,and sorry for my poor Englisharrow_forward△DEF△DEF has vertices D(0, 2) and F(6, 2). If △DEF△DEF has an area of 12 square units, select all the possible coordinates for E.arrow_forward
- In quadrilateral QRST, m<R=60, m<T=90, QR=RS, ST=8, TQ=8 How long is the longer diagonal of QRST? Find the ratio of RT to QS.arrow_forward13:26 ... ← Robert F. Blitzer - Thinkin... 0,04 61 KB/d 目 polygons to create a fraudulent tessellation with discrepancies that are too subtle for the eye to notice. In Exercises 45-46, you will use mathematics, not your eyes, to observe the irregularities. B A 45. Find the sum of the angle measures at vertex A. Then explain why the tessellation is a fake. 46. Find the sum of the angle measures at vertex B. Then explain why the tessellation is a fake. =et at If se Fic SECTION 10.3 Polygons, Perimeter, and Tessellations 645 61. I find it helpful to think of a polygon's perimeter as the length of its boundary. 62. If a polygon is not regular, I can determine the sum of the measures of its angles, but not the measure of any one of its angles. 63. I used floor tiles in the shape of regular pentagons to completely cover my kitchen floor. In Exercises 64-65, write an algebraic expression that represents the perimeter of the figure shown. is be 64. le a b C 2/ If se nyarrow_forwardSchoology → C Cportsk12.com bookmarks Sis Grades and Attendance Al Detector - the Original Al Che X GPTZero + portsmouth.schoology.com/common-assessment-delivery/start/7747152192?action=onresume&submissionId=1600790102 New Tab Home | Schoology Quadrilateral Quiz English If WXYZ is a square, and WY = 32, find XY. Round your answer to the nearest tenth. Z XY = R X Y POSSIBLE POINTS: 5 2 of 20 48 21 1 2 345678910 Next ▸ Δ ㄖㄨ All Bookmarks Schoology Help Center | PRIVACY POLICY | Terms of Use PowerSchool ©2025arrow_forward
- om nearest tenth if necessary. milsum 3. છે. 9.3mm 3mm A 78-43-92 4-3) 11.7 of 72.04-11.7-= lygons 7.8 mi 60.94 blants" 9 om 6. 4.15-7 16- 32m 1.8m 4.5m % ose 4.5m as to 65m 14 represents 5 square meters.arrow_forwardThe diagonals of rhombus ABCD intersect at E. Given that BAC=53 degrees, DE=8, and EC=6 find AEarrow_forwardVolume of Dubai Cayan Towerarrow_forward
- Elementary Geometry For College Students, 7eGeometryISBN:9781337614085Author:Alexander, Daniel C.; Koeberlein, Geralyn M.Publisher:Cengage,Elementary Geometry for College StudentsGeometryISBN:9781285195698Author:Daniel C. Alexander, Geralyn M. KoeberleinPublisher:Cengage Learning

