Mathematics High School

1) Jack wants to buy a new smart phone for
£495. He has already saved £108.
Each week he earns £60.
He saves 40% of his earnings.
How many more weeks must he save for?
(4 marks)​

Answers

Answer 1

Answer:

17 weeks

Step-by-step explanation:

Amt. of money left to save

£495 - £108 = £387

Amt. of money he saves each week

40/100 x £60 = £24

Ans: 387/24 = 16.125

= 17 weeks

16 x £24 = £384(not enough, must save one more week)

Related Questions

HERE PLEASE HELP ME OUT

Answers

Vertex: (-2,-3)
Axis of Symmetry: x=-2

Solve
7x+2y=16
5x-2y=20
x= y=

(3 marks)

Answers

X=3 and y=-5/2. Here is why, when we do 7x+5x that gives us 12x. -2y+2y=0 and then we have 16 plus 20 which gives us 36. Now we gotta isolate x which right now we have 12x=36. Therefore divide by 12 to get x alone, which 36 divided by 12 is equal to 3. X=3. Plug it back into the equation, 7(3)=21 plus 2y=16. Subtract 21 from both sides 16-21 is equal to -5. Then 2y=-5 divide by 2 on both sides you will have -5/2=y or y=-5/2. Hope this helps!

If a rectangular. Prism. Has 5cm. 10cm on one side and 4cm on the. Other. What is the volume of the rectangle?

Answers

Answer: [tex]200\ cm^3[/tex]

Step-by-step explanation:

Given

The dimension of the rectangular prism is

[tex]l=5\ cm\\w=10\ cm\\h=4\ cm[/tex]

The volume of the prism is given by [tex]V=l\times w\times h[/tex]

[tex]\Rightarrow V=5\times 10\times 4\\\Rightarrow V=200\ cm^3[/tex]

Therefore, the volume of the prism is [tex]200\ cm^3[/tex].

How can I find the area of the shaded area?​

Answers

I don’t know I thought I did

Andrew has a coupon for 30% off his purchase at an electronics store . If he buys a $ 199 television , how much does he pay?

Answers

Answer:

$139.3

Step-by-step explanation:

30% of 199 is 59.7

Then you subtract that from 199 to get your answer

x x
110°
y
70
y = [ ? ]

Answers

Answer:

y=90

Step-by-step explanation:

Add both numbers

110 + 70=180

divide by 2

180 ÷ 2 = 90

Answer:

y=90

hope that helps

Can any one help with this one?
Solve for x.

[tex] {x}^{2} - 13x + 12 = 0[/tex]
​

Answers

Answer:

Solution given:

[tex] {x}^{2} - 13x + 12 = 0[/tex]

doing middle term factorization

x²-12x-x+12=

x(x-12)-1(x-12)=0

(x-12)(x-1)=0

either

x=12

or

x=1

value of x is 1 or 12.

Find the surface area of the cone. h = 12 ft, r = 5ft, l = 13 ft

Answers

Answer:

total surface area is 267.14

Answer:

90π ft^2.

Step-by-step explanation:

SA = πr(r + l)

= 5π(5 + 13)

= 90π

A letter in the word COURAGE is chosen at random, then a coin is tossed three times. How many outcomes are possible?

Answers

Answer:

I think about 10

Step-by-step explanation:

Answer:

in the first one there are 7 outcomes

and in the second one there are hhh ,the,hth,tht, . h means head and t means tail

ppppppllllzzz help whats the opposite of 1.5

Answers

Answer:

Step-by-step explanation:

-2.3?

solve for x helpp plz !

Answers

Answer:

5

Step-by-step explanation:

simplify (21a² × 21a⁴) ÷ (21a² × 21a²)​

Answers

Simplifying (21a^4) and (21a^2)
There is the answer .

Find the 97th term of the arithmetic sequence 17, 26, 35, …

Answers

Answer:

881

Step-by-step explanation:

The pattern is add 9. We can see that 3 numbers of the 97 are given. Which means there are 94 unknown numbers. 94 times 9=846. 35 is the last number given. add 846 to 35 and you get 881. therefore, your answer is 881.

What is the leg rule

Answers

Answer:

The right triangle altitude theorem or geometric mean theorem is a result in elementary geometry that describes a relation between the lengths of the altitude on the hypotenuse in a right triangle and the two line segments it creates on the hypotenuse.

Step-by-step explanation:

Was definetly not copy and pasted from g.o.o.g.l.e. no siree

please help me quickk

Answers

Answer:

x = 4.

Step-by-step explanation:

4 - 5x = 12 - 7x

4 - 5x + 7x = 12 - 7x + 7x

4 + 2x = 12

4 - 4 + 2x = 12 - 4

2x = 8

x = 8/2 = 4.

Answer:

4-5x=12-7x

-5x+7x=12-4

2x=8

x=8/2

x=4

Step-by-step explanation:

Which of these expressions represents the product of t and 13
A. 13- t
B. 13t
C. 13+ t
D. 13 divided by t

Answers

Answer:

B is your answer for your math problem

what fraction is equivalent to negative 3 over 2​

Answers

Answer:

-6/4

Step-by-step explanation:

Write the equation of the line that passes through the points (7,5) and (-2,3). Put
your answer in fully reduced point-slope form, unless it is a vertical or horizontal line.

Answers

Answer:

slope - intercept form: y=2/9x+31/9

point slope form: y-5=2/9 • (x-7)

AREA OF CIRCLES HELP PLS​

Answers

Answer:

12

Step-by-step explanation:

Answer:

48in^2

Step-by-step explanation:

8/2=4

3 x 4 x 4= 48

find the number of combinations: 9C5

Answers

Answer:

9 is the answer :)

Step-by-step explanation:

3 * 3 is 9

PLEASE HELP ME ASAP NEED IN FIVE MIN. PLEASE NO LINKS OR FILES. I WILL MARK BRIANYLEST AND I AM GIVEING 10 EXTRA PIONTS AS WELL.

In a survey, 9 people reported how many soft drinks they drank in the last month. Here are their responses:
29, 30, 31, 33, 35, 36, 37, 38, 87. .
Which measure should be used to summarize the data?

1. Mean
2. Median
3. Mode

Answers

Answer:

id say the mean

Step-by-step explanation:

Answer: Mean

Step-by-step explanation: It's the average value.


8. Line ZX and Line WY are secants of circle V, as shown below.


Based on this information, which of the following can be proved true?

Answers

Answer: take a protractor to the unkown sides to find the angle degrees and to check add them up and see if it is 360 degrees

Step-by-step explanation:

heyy! i’ll give brainliest please help

Answers

Answer:

C

Step-by-step explanation:

THE THIRD CHOICE

Answer: I would say B is the answer because you should never capitalize those directions

I NEED HELP PLEASEEE ILL PUT BRAINIEST PLEASE

Answers

Answer:

A. 26

Step-by-step explanation:

45/30=39/x

Cross multipy.

1170=45x

Divide by 45.

Answer is 26.

Which polynomial function has zeros at -3, 0, and 4?

f(x) = (x + 3)(x2 + 4)

f(x) = (x2 - 3)(x - 4)

f(x) = x(x + 3)(x - 4)

f(x) = x(x - 3)(x + 4)

Answers

Answer:

If 5 is zero then (x - 5) is a factor.

Only 4. has this factor.

Step-by-step explanation:

Isaac invested $1,800 in an account paying an interest rate of 4.7% compounded continuously. Assuming no deposits or withdrawals are made, how much money, to the nearest hundred dollars, would be in the account after 15 years?

Answers

Answer:

First, convert R as a percent to r as a decimal

r = R/100

r = 4.7/100

r = 0.047 rate per year,

Then solve for A,

              [tex]A = P\cdot e^{rt}\\\\A= 1800 \cdot (2.71828)^{(.047)(15)}, \ where \ e = 2.71828\\A = 3642.92[/tex]  

The amount he receives after 15years $3,642.92

Four chairs and two tables cost £218.
Six chairs and seven tables cost £587.

Find the total cost of buying twenty chairs and five tables.

Answers

Answer:

x = cost of a chair = £22

y = cost of a table = £65

£765

Step-by-step explanation:

Let

x = cost of a chair

y = cost of a table

4x + 2y = 218 (1)

6x + 7y = 587 (2)

Multiply (1) by 6 and (2) by 4

24x + 12y = 1,308 (3)

24x + 28y = 2,348 (4)

Subtract (3) from (4) to eliminate x

28y - 12y = 2,348 - 1,308

16y = 1,040

y = 1,040/16

y = 65

Substitute y = 65 into (1)

4x + 2y = 218 (1)

4x + 2(65) = 218

4x + 130 = 218

4x = 218 - 130

4x = 88

x = 88/4

x = 22

x = cost of a chair = £22

y = cost of a table = £65

Find the total cost of buying twenty chairs and five tables

20x + 5y

Substitute the values of x and y

20x + 5y

= 20(22) + 5(65)

= 440 + 325

= £765

(please stop taking my points with nonsense answers this is the second time im asking now..)

The top deck of a boat is 9 feet above the surface of a lake, while the bottom of the boat is 24 feet below the surface of the lake.

What is the vertical distance between the top deck and the bottom of the boat?

Drag and drop the correct value into the box to complete the statement.

The vertical distance is ____ feet.

Answers

Hi there!

[tex]\large\boxed{33 \text{ feet}}[/tex]

We can find the distance with this expression:

Height(top deck) - Height(bottom) = distance

The top deck has a height of positive 9 feet, while the bottom of the boat has a height of -24 feet since it is BELOW the surface of the lake.

Thus:

9 - (-24) =

Subtracting a negative becomes a plus, so:

9 + 24 = 33 feet.

Answer:hi

Step-by-step explanation:

hi

Write an explicit formula for an, the nth term of the sequence 21, 27, 33...

Answers

Answer:

Tn=6n+15

Step-by-step explanation:

Tn=6n+15

T9=6*9+15

T9=54+15

T9=69

Simplify the below expression.

Answers

Answer:

x^4

Step-by-step explanation:

The answer is the first choice!!

Other Questions
Why is the tone of Langston Hughes's I, Too determined?the speaker prefers to avoid other people. The speaker hopes to become an american citizen. The speaker likes to eat in the kitchen. The speaker intends to achieve equality in the future Ms. Dos has already driven 94.6 miles towards los angeles and it took her 1.1 hours to get that far write a multiplication problem that gives Ms. Dodos average speed write a short response (2-3 paragraphs) asserting whether The Old Man and The Sea shows characteristics of realism, modernism, both movements, or neither. When the median is ten what does it represent what is the ratios for 150 and 3 How did the Mongols impact the Silk Road and Russia It is winter if and only if it is the month ofDecember Gunther is making 100 mL of an antibiotic cream that is 15% antibiotic. He is using 18% and 10% creams. What is the ratio of the 18% cream in the final mixture? Mr. Bonet has a fair coin labeled heads and tails. He will flip the coin 6 times and record his results. What is the probability that the coin will land face-up on tails on all six flips? You pay 5.65% on the first 110,000 of income and 1.45% in excess of $110,000. Calculate the FICA tax for an employee who earns 60,000 a year Which of the following organizations was created by the Allied Forces to prevent futurewars, protect human rights, and keep the peace in the world after WWII ended? find the area of each circle Can someone please help me ? What is the measure of arc FGD?DHGEF 34 Simplify the algebraic expression:2(y + 5) + 3y - 4 Sorry the image is blurry, please help me. Each bar includes the left-end value but not the right-end value. For example, the first barincludes dogs that weigh 60 pounds and 68 pounds but not 80 pounds. The quotient of C and d Write each of these propositions in the form "p if and only if q" in English. a) If it is hot outside you buy an ice cream cone, and if you buy an ice cream cone it is hot outside. b) For you to win the contest it is necessary and sufficient that you have the only winning ticket. c) You get promoted only if you have connections, and you have connections only if you get promoted. d) If you watch television your mind will decay, and conversely. e) The trains run late on exactly those days when I take it. Each fier station hose at the la salle fier station is 25 yards long. The station needs enough fier hoses to reach from any fier hoses to reach from any fier hydrant to the farthest house wich could be up to 230 feet away. What is the minimum number of hoses that the la salle fier station should have.