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
Dmitriy789 [7]
3 years ago
12

Marianne is completing a 4-mile route for

Mathematics
1 answer:
Bogdan [553]3 years ago
3 0

Answer:

For 1 miles distance: 7/10 of a mile she runs and 3/10 she walks.

For 4 miles distance (4 times the previous distance) she will run:

4*(7/10) = 18/20 = 2.8 miles

and walk:

4*(3/10) = 12/10 = 1.2 miles.

You might be interested in
Evaluate the expression when y=-3<br><img src="https://tex.z-dn.net/?f=y%20%7B%7D%5E%7B2%7D%20%20%2B%205y%20-%204" id="TexFormul
Zielflug [23.3K]

(-3)^2+5(-3)-4

9-15-4

=-10

3 0
3 years ago
Solve 2x-4 = -2-2+2x<br> and <br> Solve 5x-9 = 8+5x
dimaraw [331]

Answer:

1. 0=0

2. 0=17

Step-by-step explanation:

6 0
3 years ago
2,776,714 rounded to the greatest place value is?How many zeros are in the rounded number?The estimated speed of light using a p
Simora [160]

Answer:

3,000,000. 6 Zeros. 898,752,432,640

299,792 kilometers per second is the speed of light normally

Step-by-step explanation:

7 0
3 years ago
What is the slope of the line perpendicular to y=-3x+4?
inessss [21]

The perpendicular line would have a slope of 1/3.

Perpendicular lines have opposite and reciprocal slopes.

To do the opposite, take the original slope (-3) and change the sign (3).

To do the reciprocal, take the slope we changed (3) and flip it as a fraction (1/3).

This gives us a new slope of 1/3.

7 0
3 years ago
(pls help quick and explain how you got the answers for brainliest)
scoray [572]

You only have to apply the theorem of Pythagoras here. Remember the square on the hypotenuse (the longest side) is equal to the sum of the squares on the other two sides :

1. AB is the hypotenuse, so, according to the theorem we can write :

AB² = AC² + CB²

c² = 5² + 4²

c²= 25 + 16

c² = 41

applying the square root of 41 we get :

c ≈ 6.40 rounded to the hundred

The next cases are exactly the same thing so there is no need for explanation :

2.

AB is the hypotenuse here because it is the biggest side clearl :

AB² = AC² + CB²

25² = 15² + b²

Thus

b² = 25² - 15²

we just subtracted 15² on each side of the equation

b² = 625 - 225

b² = 400

applying the square root of 400 we get

b = √400 = 20

So AC = 20

3. The longest side is clearly AB = 60

So

AB² = AC² + CB²

60² = 40² + a²

subtracting 40² on each side of the equation we get :

a² = 60² - 40²

I let you finish this using your calculator and doing exactly like the previous cases

4.

AB is the hypotenuse,

AB² = AC² + CB²

23² = b² + 14²

Subtracting 14² from each side of the equation we get

b² = 23² - 14²

5.

AB is the biggest side :

AB² = AC² + CB²

29² = 23² + a²

We subtract 23² on each sides of the equation :

a² = 29² - 23²

You can finish with your calculator

6.

AB² = AC² + BC²

78² = b² + 30²

subtraction...

b² = 78² - 30²

Good luck :)

7 0
3 years ago
Other questions:
  • What is 1/10 of 7 is it 0.7?
    13·1 answer
  • Mutiply the expression 2 (7n-11)
    12·1 answer
  • Warmup/Reflection- necessary for attendance
    5·1 answer
  • Amy has set aside $150 a month for her cell phone bill. The cost for a monthly cell phone plan is a $65 access fee plus $20 per
    5·1 answer
  • Numbers:20 &amp; 21 <br> Please help me!!!!
    6·1 answer
  • A pizzeria sells 1 pizza pie for $13, 2 for $23, 3 for $33, and 5 for $53.
    10·1 answer
  • PLEASE HELP Christine walks 0.5 miles around the lake in 10 minutes.
    12·1 answer
  • Which function describes the graph
    12·2 answers
  • What is the volume if a hemisphare with a diameter of 10cm​
    13·2 answers
  • If triangle ACB is congruent to triangle DCE, angle CAB=50 degrees, angle DCE= 45 degrees, and angle CDE =10x what does x equal
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!