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
3241004551 [841]
4 years ago
15

A set of Children’s blocks contains 3 shapes: longs, flats, and cubes. There are 3 times as many longs as cubes, and 30 fewer fl

ats than longs. If there are 600 blocks in all, how many long’s are there?
Mathematics
1 answer:
Fofino [41]4 years ago
6 0

Answer:

There are 126 longs

Step-by-step explanation:

Let's represent the number of longs by l, number of flats by f and number of cubes by c.

We are told that there are 600 blocks in all.

This implies l + f + c = 600

We also know that there are 3 times as many longs as cubes: this mean

c = 3l

There are also 30 fewer flats than longs.

This mean f + 30 = l I.e f = l - 30

We now have 3 equations to solve simultaneously

l + f + c = 600 ...........(i)

c = 3l................(ii)

l -30 = f...............(iii)

We can substitute equations iii and ii into I

l + l - 30 + 3l = 600

5l - 30 = 600

5l = 630

l = 630/5 = 126.

You might be interested in
Give me some good memes all these people got lame memes
sp2606 [1]

Answer:

heres one for you

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Solve the problem. Type the number in the box that correctly completes the sentence.
motikmotik

Answer:

5 miles

Step-by-step explanation:

Think of this like a triangle.  From the bottom of the tower, to the top of the tower, to the point 3 miles away, and back to the bottom of the tower.

So we already have 2 side lengths. The height of the tower, 3 miles, and the base, 4 miles.  In order to find the 3rd length, the distance from the top of the tower to the point 4 miles away from the bottom, we need to apply the formula A squared + B squared = C squared.

We have A and B,  (3 and 4) and we need C.

A squared (3 squared) is 9

B squared (4 squared) is 16

so 9 + 16 = C squared

9 + 16 = 25

C squared = 25

square root of 25 is 5

C = 5

The distance from the top of the tower to the point 4 miles away is 5.

3 0
3 years ago
There was a population of 240 moose in a National Park. After a year, the population increased by 25%.
Stels [109]
Population of moose in the national park = 240
percentage increase in the population of moose in the national park after a year = 25%
Then
Amount of increase in the population
Of moose in the national park in a year = (25/100) * 240
                                                               = 240/4
                                                               = 60
So
The number of moose present after 1 year
in the national park = 240 + 60
                                = 300
So from the above deduction we can easily conclude that the number of moose in the national park after a year is 300.
6 0
3 years ago
Read 2 more answers
Please help right noww pleasee i will put brainliest
Karo-lina-s [1.5K]

Answer:

d is the answers for the question

Step-by-step explanation:

please give me brainlest

4 0
3 years ago
1/3+1/4 I really don’t get this so can someone please help me with this problem
Oxana [17]

Answer:

7/12

Step-by-step explanation:

You have to find a common denominator, so you would multiply 3 from the 1/3 by 4 which gets you twelve. And bc you multiplied the 3 you have to multiple the 1 so 1/3 would be 4/12. You would then multiply 4 by 3 and get 12. Then do the same to the one on top. So 1/4 would be 3/12. You then add 3 and 4 and get 7. That’s the numerator, the denominator stays 12. So it would be 7/12

4 0
3 years ago
Other questions:
  • In a triangle, the second angle is twice the measure of the first, and the third angle is three times the measure of the second.
    9·2 answers
  • Find m &lt; RQP<br><br> a. 70°<br><br> b. 55°<br><br> c. 80°<br><br> d. 90°
    11·1 answer
  • What is the value of the expression?
    15·1 answer
  • Kim can paint 4 walls in 5 hours. How long will it take to paint 7 walls?
    5·1 answer
  • What is the value of X in the qution:
    10·1 answer
  • A stock market analyst observes the following for the price of two stocks that he owns, one of which is increasing at an exponen
    10·1 answer
  • Put them in order 0.25,1.5 and 2.5
    8·2 answers
  • Both questions are on the picture ​
    15·2 answers
  • HOW TO DO THIS HELP BEST ANSWER GETS BRAINLY WITH A REAL GOOD EXPLANATION AND ANSWER
    6·2 answers
  • What will be the value of f(k)?<br> 4x² - 6x +7
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!