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
xxTIMURxx [149]
3 years ago
14

Last month Maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. Let x re

present the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. If she hiked a total of 90 miles, which equation can be used to find the number of times Maria hiked each trail?
A. x + y = 90

B. 5x – 10y = 90

C. 90 – 10y = 5x

D. 90 + 10y = 5x
Mathematics
1 answer:
mars1129 [50]3 years ago
7 0

It's the 3rd equation (which is in a disguised form)...we have

90 - 10y = 5x     add 10y to both sides

90 = 5x + 10y

This says that the nmber of tmes she hiked the 5 mile trail (x) plus the number of times she hiked the 10 mile trail (y) = 90 miles

You might be interested in
Find the value of x. Segments that appear to be tangent are tangent. Round your answer to the nearest tenth.
Afina-wow [57]

Answer: 6.3

Step-by-step explanation:

3 0
2 years ago
Two factories I and II produce phones for brand ABC. Factory I produces 60% of all ABC phones, and factory II produces 40%. 10%
denpristay [2]

Answer:

0.3721 or 37.21%

Step-by-step explanation:

P(I) = 0.60; P(II) = 0.40;

P(not defective I) = 0.90; P(not defective II) = 0.80

The probability that the phone came from factory II, given that is not defective, is determined by the probability of a phone from factory II not being defective divided by the probability of a phone not being defective.

P(II|not) = \frac{P(II)*P(not_{II})}{P(II)*P(not_{II})+P(I)*P(not_{I})}\\P(II|not) = \frac{0.40*0.80}{0.40*0.80+0.60*0.90}\\ P(II|not) =0.3721 = 37.21\%

The probability is 0.3721 or 37.21%.

4 0
3 years ago
Check all of the polynomial functions that have 2 as a root.
Leviafan [203]

A,C,D those were the answers i put and they were correct.

5 0
2 years ago
In the diagram of <br> △△NRQ below, SP∥∥RQ, NS=10, SR=50, and PQ=40. What is the length of NQ?
Delicious77 [7]

Answer:

Step-by-step explanation:

3 0
2 years ago
If A = 41 degree, <br> Angle BDC = 58 degree, <br> and y = 8, Find x.
love history [14]
Check the pictures below.

make sure your calculator is in Degree mode, since the angles are in degrees.

4 0
3 years ago
Other questions:
  • Five friends are equally shared 3 packs of football cards how much of a pack will each friend get
    8·1 answer
  • Alicia is sewing a rectangle bedspread that measures 72 inches by 60 inches. The bedspread is red with a gold circle 18 inches i
    11·1 answer
  • Simply in ratio 20:80
    10·1 answer
  • HELp PLEASE WITH CORRECT ANSWER I NEED HELP I
    12·2 answers
  • What does it mean when a number And a variable are place right next to each other In an equation
    10·1 answer
  • Gallon of gas cost 4$ carols car can drive 20 miles per gallon. what is the cost to drive 30 miles
    13·1 answer
  • 4 times as much as 3 is
    6·2 answers
  • Select the correct difference. 5d 2 + 4d - 3 less 3d 2 - 2d + 4 2d2 + 2d + 1 2d2 + 6d - 7 2d2 + 6d + 7 -2d2 - 6d + 1
    14·2 answers
  • Dan bought x pounds of potatoes for $0.85 per pound and y pounds of grapes for $1.29 per pound. The total cost was less than $5.
    8·1 answer
  • Find the tenth term in each sequence 32, 42, 50, 58, 66
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!