1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
liubo4ka [24]
3 years ago
9

James spent 4/5 of his birthday money on three sweaters and four hats each sweater cost twice as much as each hat if he had $35

left after his shopping spree how much did James pay for each hat
Mathematics
1 answer:
Trava [24]3 years ago
8 0

Answer:

Hat costs $17.5

Step-by-step explanation:

Let x represent the cost of one sweater.

Let y represent the cost of one hat.

James spent 4/5 of his birthday money on three sweaters and four hats. This means that she spent 4/5 of his birthday money on 3x +4y

Each sweater cost twice as much as each hat. It means that

x = 2y

Assuming his total birthday money was $z and after spending 4/5 of it on the hats and sweaters, he had $35 left after his shopping spree, then,

z - 4z/5 = 35

Cross multiplying by 5

5z - 4z = 175

z = 175

This means that his birthday money was $175

It means that

3x + 4y = 175 - - - - - - - -1

Substituting x = 2y into equation 1, it becomes

3(2y) + 4y = 175

6x + 4y = 175

10y = 175

x = 175/10= 17.5

x = 2y = 17.5×2 = $35

You might be interested in
Rachel's chocolate bar is 43% cocoa. If the weight of the chocolate bar is 68 grams, how many grams of cocoa does it contain? Ro
Yanka [14]

Answer:

29.24 grams

Step-by-step explanation:

It is given that,

Rachel's chocolate bar is 43% cocoa

The weight of the chocolate bar is 68 grams

We need to find how many grams of cocoa does it contain. It means it will contain 43% of 68 grams. It can be solved as follows :

C=\dfrac{43}{100}\times 68\\\\C=29.24\ \text{grams}

Hence, it will have 29.24 grams of cocoa.

7 0
3 years ago
Evaluate 3× +7 for x=5.​
juin [17]

Answer:

The answer is 22!

Step-by-step explanation:

3*5 = 15, 15+7 = 22

Brainliest pls! :D

6 0
2 years ago
I need help on a question i don't know!
user100 [1]

Answer:

20:4

Step-by-step explanation:

got it for u

5 0
2 years ago
Can someone explain how you do fractions like adding them? And what rules they have to find the answer?
frozen [14]

Answer:

Hope this image helps you. (sorry if it's tiny writing.)

Step-by-step explanation:

7 0
2 years ago
You want to estimate the mean amount of time college students spend on the Internet each month. How many college students must y
KonstantinChe [14]

Answer:

752.95

Step-by-step explanation:

Data provided in the question

The standard deviation of population = 210

The Margin of error = 15

The confidence level is 75%, so the z value is 1.96

Now the required sample size is

= 1.96^2\times \frac{210^2}{15^2}

= 752.95

Hence, the number of college students spends on the internet each month is 752.95

Simply we considered the above values so that the n could come

8 0
3 years ago
Other questions:
  • Marisa painted 1/2 of her bedroom in 3/4 of an hour. At this rate, how long would it take her to paint the entire room?
    6·1 answer
  • How do I find the nth term of the arithmetic sequence -2,2,6,10
    10·1 answer
  • Mike bought 5 new baseball trading cards to add to his collection . the next day hos dog ate half of his collection. there are n
    5·1 answer
  • An English class has read the first 384 pages of their novel.
    13·1 answer
  • What is the most common mistake most students make when learning how to shift a quadratic graph from the original parent graph?
    7·1 answer
  • In ABC, if CB AC≅ , m∠A = 3x + 18, m∠B = 7x – 58, and m∠C = 2x – 8, find x and the measure of each angle.
    12·1 answer
  • Jessica purchased a DVD that was on sale for 12% off. The sales tax in her county is 3%. Let y represent the original price of t
    14·1 answer
  • FIRST GETS BRAINLEST __ Several tourists are participating in different
    15·2 answers
  • Solve for x. Round to the nearest tenth of a degree, if necessary.
    13·1 answer
  • Jason, Joel and John share $100.80. Joel has $3.45 more than Jason. John has three times as much money as Joel. How much does Jo
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!