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
Effectus [21]
3 years ago
5

Lasy year, Kristen read a total of 30 fiction and non-fiction books. The number of non-fiction books was 5 less than 4 times the

number of fiction books. What are the total number of fiction and non-fiction books that Kristin read?
Mathematics
1 answer:
Simora [160]3 years ago
4 0

Answer:

  • 7 fiction books
  • 23 non-fiction books

Step-by-step explanation:

The number of non-fiction read was 5 less than 4 times the number of fiction books.

Assume fiction books are x.

An equation representing this would be:

x + (4x - 5) = 30

5x - 5 = 30

5x = 30 + 5

x = 35 / 5

x = 7 fiction books

Non-fiction books:

= 4x - 5

= 4 * 7 - 5

= 23 non - fiction books

You might be interested in
Please help, the homework is due in a few hours​
givi [52]

Answer:

the aswer is 2

Step-by-step explanation:

this is because 10/5=2

4 0
3 years ago
When you divide a whole number by a decimal less than 1, the quotient is greater than the whole number.why?
lesya692 [45]

One way to understand division is to look at it as repeated
subtraction.  When you "divide by" a divisor number, you're
asking "how many times can I subtract this divisor from the
dividend, before the dividend is all used up ?".

Well, if the divisor is ' 1 ', then you're taking ' 1 ' away from the
dividend each time, and the number of times will be exactly
the same as the dividend.

If the divisor is more than ' 1 ', then you subtract more than ' 1 '
from the dividend each time, and the number of times you can
do that is less than the dividend itself.

If the divisor is less than ' 1 ', then you only take away a piece of
' 1 ' each time.  You can do that more times than the number in
the dividend, because you only take away a piece each time.   
5 0
3 years ago
Evaluating expressions k3+j
mrs_skeptik [129]
The answer is 3k+j since 3 cannot be multiplied after k.
3 0
3 years ago
Find the difference.<br><br> (4−5y)−2(3.5y−8)
MAVERICK [17]

Answer:

-12y + 20

Step-by-step explanation:

First, you simplify each term:

apply the distributive property:

4 - 5y - 2 (3.5y) - 2 x -8

Multiply 3.5 by -2:

4 - 5y - 2 (3.5y) - 2 x -8

Multiply -2 by -8:

4 - 5y - 7y +16

Next, we simplify by adding terms:

Add 4 + 16:

-5y - 7y + 20

Subtract 7y from 5y:

-12y + 20

Hence the simplified form is -12y + 20

4 0
2 years ago
Read 2 more answers
If the mean weight of 4 backfield members on the football team is 221 lb and the mean weight of the 7 other players is 202 lb, w
MatroZZZ [7]

Let x_1, x_2, x_3, x_4, x_5, x_6, x_7, x_8, x_9, x_{10}, x_{11} be the weight of i-th player.

1. If the mean weight of 4 backfield members on the football team is 221 lb, then

\dfrac{x_1+x_2+x_3+x_4}{4}=221\ lb.

2. If the mean weight of the 7 other players is 202 lb, then

\dfrac{x_5+x_6+x_7+x_8+x_9+x_{10}+x_{11}}{7}=202\ lb.

3. From the previous statements you have that

x_1+x_2+x_3+x_4=221\cdot 4=884 \lb,\\ \\x_5+x_6+x_7+x_8+x_9+x_{10}+x_{11}=202\cdot 7=1414\ lb.

Add these two equalities and then divide by 11:

x_1+x_2+x_3+x_4+x_5+x_6+x_7+x_8+x_9+x_{10}+x_{11}=884+1414=2298\ lb,\\ \\\dfrac{x_1+x_2+x_3+x_4+x_5+x_6+x_7+x_8+x_9+x_{10}+x_{11}}{11}=\dfrac{2298}{11}=208\dfrac{10}{11}\ lb.

Answer: the mean weight of the 11-person team is 208\dfrac{10}{11}\ lb.

4 0
3 years ago
Other questions:
  • Which of the following is the best approximation for the product of 42.081 x 99.91?
    6·1 answer
  • A circular fountain 10 feet in diameter has a circular walk 3 feet wide paved around it. What is the area of the walk?
    7·1 answer
  • A card is chosen at random from a deck of 52 cards it is replaced and a second card is chosen what is the probability both cards
    6·2 answers
  • A few years ago, the Colorado Rockies played 160 games and won 64. for every two games they won, how many games did they lose?
    7·2 answers
  • A tour group split into two groups when waiting in line for food at a fast food counter. The first group bought 6 slices of pizz
    9·1 answer
  • A group of 4 friends go out for dinner and the total cost of the dinner is $200. They use a $40 coupon before splitting the bill
    6·2 answers
  • A company is billed $1,850 with a cash discount of 5% offered for payment within ten days. How much could it save?​
    15·2 answers
  • Carlos bought the items shown in the<br> table. What was the total cost, not including tax?
    5·1 answer
  • Given that f(x) = 5x2 − 100 = 0, find x
    12·1 answer
  • Find the range of the function for the given domain. ​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!