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
lozanna [386]
3 years ago
10

You have a $10 top-up card for your mobile phone. If you have used $6 of your credit, what is the ratio between what you have sp

ent and what you have left in credit?
A) 10:6
B) 3:2
C) 4:6

If 10 minutes talk-time costs $2, how much will 7 minutes cost?

A) $1.40
B) $1.04
C) $1.34

You use a mobile phone to send a text message with 160 characters, and receive a reply of 40 characters. What is the simplest ratio between the number of characters in the two messages?

A) 160:40
B) 16:4
C) 4:1

A survey shows that on average students spend 9 hours a week in chat rooms, and 3 hours e-mailing. What is the ratio between the two?

A) 9:3
B) 3:1
C) 1:3

If you play 3 games of snooker and it costs you $6, would it cost you $16 for 8 games?

A) Yes
B)No
While you're playing snooker you achieve a maximum break of 147. Your friend's highest break is 49. What is the ratio between the breaks?

A) 147:49
B) 3:1
C) 1:3

The snooker hall has given you a $40 prize for your 147 break. You decide to share it with your friend in the ratio 3:1. How much will you give your friend?

A) $10
B) $11
C) $9

Your friend spends 10 hours a week swimming and 5 hours a week weight training. Choose the simplest way of writing this as a ratio of swimming to weight training.

A) 10:5
B) 5:1
C) 2:1

Sessions in the swimming pool cost $10 for 5, how much will it be for 20 sessions?

A) $30
B) $20
C) $40

A swimming pool is 20m wide and 50m long. What is the simplest ratio of the pool's width to its length?

A) 1:10
B) 20:50
C) 2:5
Mathematics
1 answer:
fomenos3 years ago
5 0

Answer:

the first answer is b

Step-by-step explanation:

what u have spent is $6 &what u left is 4

But ratio must expressed in smallest unit so 3:2 is the answer

for the second one the answer is A

3.c

4.

You might be interested in
1) A light bulb producing company states that its lights will last an average of 1200 hours with a standard deviation of 200 hou
Ronch [10]

The mean ( average ) is given as 1200 hours.

The standard deviation is 200, sample size is 100.

Find the standard error:

√(200^2 / 100) = 20

Now calculate the confidence interval. For 95% the Z number is 1.96

Multiply Z by the standard error:

1.96 x 20 =39.2

Now find the range that the mean should be within:

1200 - 39.2 = 1160.8

1200 + 39.2 = 1239.2

The samples should be between 1160.8 and 1239.2 for a 95% confidence interval.

Since the average was 1050, which is below 1160.8 the bulbs are not in compliance.

4 0
3 years ago
How do I find the answer to x and y?
Vlada [557]

First, the angles of triangle MNP add up to 180º.  Since angle M is 142º and angle P is 24º, angle N must be (180-24-142)º or 14º.

Now angle N is congruent to angle U.  

      2x - 50 = 14

              2x = 64

                x = 32

Segment NP is congruent to segment US, so 13 = 2x - y AND x=32.

    13 = 62 - y

     y = 49

8 0
1 year ago
A chemical company makes two brands of antifreeze. The first brand is 55 % pure antifreeze, and the second brand is 80 % pure an
Likurg_2 [28]

We have 55% and 80% antifreeze.  We need 90 gallons of 75%.  

F - 55% and E - 80%

A) F + E = 90

B) .55 F + .80 E = 67.50 (which is .75 * 90)  Multiplying A) by -.55

A) -.55 F -.55 E = -49.50 (which is -.55 * 90) then adding A) & B)

.25 E = 18

E = 72 gallons of 80% and

F = 18 gallons of 55%

********* DOUBLE CHECK ******************

72 * .80 = 57.60  and 18 * .55 = 9.90

57.60 + 9.90 = 67.50 gallons of antifreeze and we have 90 total gallons

(67.50 / 90) * 100 = 75% correct!

Source: 1728.com/mixture.htm


3 0
3 years ago
Marcus needs to bike at least 80 miles this week for his training if he already has 25 miles this week then how many miles shoul
nadezda [96]

Answer: 55 miles

Step-by-step explanation: Marcus goal is 80 miles for the week. he has already completed 25 miles of that goal so you would subtract 25 from 80 then you would find the miles still left

80-25=55

6 0
3 years ago
What is the volume of the cylinder?
jarptica [38.1K]

Answer:

v= 141.3

v= pi × r^2 × h

v= 3.14 × 3^2 × 5

v= 3.14 × 9 × 5

v=141.3

6 0
2 years ago
Other questions:
  • A scuba diver is 12 meters below sea level. If the diver descends 39 meters further, what integer represents the scuba diver’s n
    15·1 answer
  • What is 2 and 3/5 plus 5 and 3/5?
    10·2 answers
  • Ebuka's monthly rent is
    7·2 answers
  • What is the answer to -3x + 10 = 5x + -8
    8·2 answers
  • The height of a triangle is 6 centimeters less than the base. The area of the triangle is 123.5 square centimeters. Find the len
    15·1 answer
  • Pair of angles are always concurrent to each other
    11·1 answer
  • brodrick answered 21 of the 25 questions of his history correctly. what decimal represents the fraction of problems he answered
    7·2 answers
  • Casey recently purchased a sedan and a pickup truck at about the same time for a new business. The value of the sedan S, in doll
    6·1 answer
  • Plssss helpppppp:c uhhhh
    5·2 answers
  • What is the correct expanded form for the number 43.205?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!