answer.
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
irga5000 [103]
2 years ago
15

A farmer plants corn and wheat on a 180-acre farm. the farmer wants to plant three times as many acres of corn as wheat. write a

system of linear equations that represents this situation. use xx to represent the number of aces of corn planted and yy to represent the number of acres of wheat planted. how many acres of each crop should the farmer plant?
Mathematics
1 answer:
Anna [14]2 years ago
7 0
Let the number of corn acres be xx and the number of wheat acres be yy.
We are given that:
1- The total number of acres is 180, this means that:
xx + yy = 180 ..............> equation I
2- The number of corn acres is 3 times that of wheat. This means that:
xx = 3yy .........> equation II

Substitute with equation II in equation I to get the value of yy as follows:
xx + yy = 180
3yy + yy = 180
4yy = 180
yy = 45 acres

Now substitute with yy in equation II to get xx as follows:
xx = 3yy
xx = 3*45
xx = 135 acres

Based on the above calculations:
acres of corn = xx = 135 acres
acres of wheat = yy = 45 acres
You might be interested in
A small dealership leased 21 Suburu Outbacks on 2-year leases. When the cars were returned at the end of the lease, the mileage
Liula [17]

Answer:

yes 30 is the answer

Step-by-step explanation:

4 0
2 years ago
Explain how complex fractions can be used to solve problems involving ratios
Kisachek [45]
When you have ratios and some unknowns you can create complex fractions from them.Bring them to the same denominator and solve for X.
8 0
2 years ago
You pack sandwiches for a mountain hike with your friends. Each sandwich takes 222 slices of bread, and each hiker eats one sand
Goryan [66]

Answer:

This question contains some errors; the correct question is:

You pack sandwiches for a mountain hike with your friends. Each sandwich takes 2 slices of bread, and each hiker eats one sandwich. How many slices of bread are used for n hikers? Write your answer as an expression.

The answer is:

(2n) slices of bread for n hikers

Step-by-step explanation:

According to the question, sandwiches packed for a mountain hike with friends is made of two (2) slices of bread.

Each hiker gets one sandwich

This, n hikers will get n× 1 sandwich

= (n) sandwiches.

If 1 sandwich contains 2 slices of bread, then (n) sandwiches for n hikers will contain:

(2 × n) slices of bread

That is, (2n) slices of bread.

The expression is (2n).

4 0
2 years ago
maria and her sister each have a salad and a drink for lunch at a restaurant. a salad costs $4.75 and a drink costs $1.65. what
oksano4ka [1.4K]
The salads in total are $9.50
The waters in total are $3.30

together the total cost is $12.80

First, convert the 15% to an actual number that can be used in a calculation. For percents, this is always done by simply dividing the percent (in this case 15%) by 100%. So, the conversational term "15%" becomes 15% / 100% = 0.15 in terms of a real mathematical number.

Second, you need to find out what 15% of your $12.80 meal cost is. This is always done by multiplying 0.15 by $12.80, or

0.15 x $12.80=$1.92.

So, the amount of tip you are going to leave is $1.92.

This makes the total cost of your meal (to write on your charge slip or other payment)

<span>$12.80 + $1.92 = $14.72.</span>




8 0
2 years ago
If two or more polygons are congruent, which statement must be true about the polygons? Read all of the choices before deciding.
hodyreva [135]
The best correct answer is option E. If two or more polygons are congruent, then rigid transformations can be used to map one polygon onto the other. <span>Two figures are said to be congruent when they have the same shape and size or if one object is a mirror image of the other object.</span>
5 0
2 years ago
Read 2 more answers
Other questions:
  • The expression x4 + 6x3 – 11x2 – 60x + 100 is equivalent to (x – 2)(x – 2)(x + 5)(x + 5). At what points does the graph of the f
    6·2 answers
  • 8439 divided by 245 with remainder
    9·2 answers
  • What is the 8th term of the binomial expansion (x + y)10?
    7·1 answer
  • Selma’s class is making care packages to give to victims of a natural disaster. Selma packs one box in 5 minutes and has already
    14·1 answer
  • A simple random sample of the weights of 59 green candies has a mean of 0.8635 g. Assume that σ is known to be 0.0565 g. Assume
    7·2 answers
  • At 1:00 P.M., the the water level is 28 inches. the water level in a pool is 13 inches. At 1:30 P.M., the water level is 18 inch
    14·2 answers
  • If t stands for the number of years since 2000 write an equation for the deer population p as a function of t
    6·1 answer
  • Sadie has $1 worth of nickels and dimes. She has twice as many nickels as dimes.
    7·1 answer
  • There are 188 people on the trip and their total cost for the bike tour was $5040. There were twelve more adults than seniors on
    5·1 answer
  • Scores on Ms. Bond's test have a mean of 70 and a standard deviation of 11. David has a score of 52 on Ms. Bond's test. Scores o
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!