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
VLD [36.1K]
3 years ago
8

Solve using the guess-and-test strategy. . . The math club has 57 members who are in sixth or seventh grades. There are twice as

many sixth graders as seventh graders. . . How many sixth graders are in the club?. . A.. 38. . B.. 37. . C.. 19. . D.. 18
Mathematics
1 answer:
REY [17]3 years ago
8 0
The guess-and-test strategy may be made easier by using the choices.
A. 38 sixth graders   ----> 57 - 38 = 19 . There are 19 seventh graders. This option already satisfy the condition that the number of sixth graders should be twice that of the seventh graders. There is no need to test for the remaining choices. The answer is letter A. 
You might be interested in
Why is 5x4 greater than 5 x 1/4 Explain.<br> I Need This Answer by today
bearhunter [10]
Because 5x4 is 20 but 5x1/4 is 1,25.

5 x 1 = 5... / 4 = 1,25
Or ... -> 1/4 = 0,25 * 5 = 1,25

;)
8 0
2 years ago
Read 2 more answers
Help me determine if relations 1, 2, 3, and 4 are functions or not please!
Reil [10]
They are all not functions
5 0
2 years ago
What is the mean of the data set? {21, 23, 25, 25, 26, 28, 28, 28, 31, 33} 26.8 27 27.8 28
Lerok [7]
In mathematics, mean average means to take the sum of all the numbers and divide the sum by the number of elements in the set.

Add up the numbers.

<span>21 + 23 + 25 + 25 + 26 + 28 + 28 + 28 + 31 + 33 = 268

Divide by the number of elements in the set. Which is 10.

268 / 10 = 26.8

So, the answer to this question is 26.8</span>
8 0
3 years ago
Read 2 more answers
Malcolm helps his father carry boxes into the warehouse. He brings in 4 boxes that each contain 18 cell phones. He also brings i
kozerog [31]
C. (4 x 18) - (3 x 12) = p
7 0
2 years ago
Read 2 more answers
Joe is hiking a trail that is 30 miles long. after several days, he is two times as far from the beginning of the trail as he is
lora16 [44]
In order to answer this question let's suppose,
Joe is x miles from the beginning and y miles from the end. These assumptions are necessary to answer further:

Now,
x=2y
x+y=30
plugging in x=2y in the above equation
2y+y=30
3y=30
y=10

Hence, according to our calculations, Joe has to hike 10 miles further
5 0
3 years ago
Other questions:
  • I need to know the distance and if your could please tell me the formula for future problems thank you!! ASAP
    6·1 answer
  • Answer for s or the total
    5·1 answer
  • What percent of 126 is 22
    13·2 answers
  • Select all of the following that are ordered pairs of the given function.
    7·2 answers
  • I'm dumb so like I don't understand (╥ω╥`)
    13·2 answers
  • James cut out four parallelograms, the dimensions of which are shown below. Parallelogram 1 length: 12 in. width: 15 in. diagona
    13·1 answer
  • What’s the gcf of 2x+6?
    9·1 answer
  • Help <br> what are the intersepts?
    11·1 answer
  • Keegan says that a quadrilateral is a square if and only if it is a rectangle. Is this a true biconditional statement?
    13·1 answer
  • If you draw all of the diagonals from one vertex of a regular hexagon, how
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!