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
aleksley [76]
3 years ago
15

1. 108 identical books have a mass of 30 kg. Find

Mathematics
1 answer:
AURORKA [14]3 years ago
8 0

Answer:

i) around 41.7 kg

ii) 72 books

Step-by-step explanation:

i) if 108 books are 30 kg then how much is the mass for 150? You cross multiply so 150 multiply by 30 and 108 multiply by x (the unknown mass). you will get 4500=108x and then 4500/108 is the unknown mass.

ii) use the same way as above.

You might be interested in
What is the solution for x if x/8= -8
LuckyWell [14K]

Answer:

x=-1

Step-by-step explanation:

just like 8/8 is 1 the same concept only you add a negative

8 0
3 years ago
Read 2 more answers
The students in Mr. Sanchez's class are converting distances measured in miles to kilometers. To estimate the number of kilomete
BaLLatris [955]

Step-by-step explanation:

Abby’s Expression:

Double m, giving 2m. She then takes 20% of the result, which we can write 0.2(2m). Finally she subtracts this from 2m, giving 2m−(0.2)2m

2m − (0.2)2m

Renato’s Expression:

Divide m by 5, giving m ÷ 5 = m/5, and then multiplies the result by 8, giving:

8(m/5)

6 0
3 years ago
use the venn diagram in Part A to find each probability when annie randomly chooses one member of the doubles club. (need help w
Usimov [2.4K]

If we assume the club membership includes

\bullet\ \mbox{6 junior boys}\\ \bullet\ \mbox{8 junior girls}\\ \bullet\ \mbox{16 senior boys}\\ \bullet\ \mbox{12 senior girls}

then the blanks in the Juniors circle must be filled in with 6 and 8 (with the 8 going in the overlap with girls). The remaining blank in the Girls circle must be filled in with 12, the number of senior girls. The blank outside both circles is the number of senior boys (members who are not juniors and not girls), 16.

3 0
3 years ago
Reflect (1, -4) over the x-axis.
mario62 [17]

Answer: (4,4)

Step-by-step explanation:

(1,-4) reflected over the x-axis is (1,4). Then translated 3 units up is (4,4). Hope this helps

5 0
3 years ago
For a standard normal distribution, which of the following expressions must always be equal to 1?
frosja888 [35]
For a standard normal distribution, the expression that is always equal to 1 is P(z≤-a)+P(-a≤z≤a)+P(Z≥a). This expression represents all of the possible values in a curve, or in other words, the total area of a curve. According to standard normal distribution, the total area of a curve is always equal to 1.


8 0
3 years ago
Read 2 more answers
Other questions:
  • Please someone help me with this.
    13·1 answer
  • Please help me please.
    9·1 answer
  • Four more than three times a number, is less than 30. Which of the following is not a solution?
    9·2 answers
  • The velocity of a turtle is recorded at 1 minute intervals (in meters per second). Use the right-endpoint approximation to estim
    11·1 answer
  • trans mom said he could spend no more than $12 for rides at the carnival. If the rides cost $0.75 each how many rides can you go
    6·2 answers
  • The points at which the curve changes from curving upward to curving downward are called what
    10·1 answer
  • Vhat is the equation of the line with a slope of 2 through (-4, 6) in point-slope form?
    15·1 answer
  • Which proportion can be used to solve for f in the figure above?
    14·1 answer
  • The set of numbers that includes the whole numbers and their opposites is called the set of...?
    12·1 answer
  • What is 80 divided by 7640
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!