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
lesya [120]
2 years ago
9

Jenny, Keith, and Joanna participated in a mini-

Mathematics
1 answer:
Elan Coil [88]2 years ago
4 0

Answer:

  • Jenny 1.75 miles, Keith 4.75 miles, Jonna 9.5 miles

Step-by-step explanation:

<u>Distance per person:</u>

  • Jenny - x, Keith - y, Joanna - z

<u>Equation as per given:</u>

  • y = x + 3
  • z = 2y = 2(x + 3)
  • x + y + z = 16

<u>Substitute and solve for x:</u>

  • x + (x + 3) + 2(x + 3) = 16
  • 2x + 3 + 2x + 6 = 16
  • 4x = 7
  • x = 7/4 = 1.75

Then

  • y = 1.75 + 3 = 4.75
  • z = 4.75*2 = 9.5
You might be interested in
Select 2 ratios that are equivalent to 7:10
nordsb [41]

Answer:

14:20 and 21:30 or 28:40

5 0
2 years ago
Is this decimal closer to 10 or 20?
PIT_PIT [208]

Answer:

Its closer to 10

Step-by-step explanation:

5 0
3 years ago
Elementary Algebra Skill
mr_godi [17]

The answer is a = \frac{4}{-3}

Step-by-step explanation:

<em>1. Convert the mixed fraction to an improper fraction</em>

To find the numerator, multiply the denominator by the whole number and add the numerator to it.

The denominator remains the same.

So, 2\frac{2}{3} will be \frac{8}{3}

<em>2. Now the equation is,</em>

\frac{3}{2} a - \frac{4}{3} a = \frac{10}{3} + \frac{8}{3} a

<em>3. Take LCM on both sides. </em>

For the left side, multiply the first fraction by \frac{3}{3} and multiply the second fraction by \frac{2}{2}

\frac{3*3}{2*3} a - \frac{4*3}{3*3} a = \frac{10+8a}{3}

<em>4. Solve by making a the subject</em>

\frac{9a-8a}{6} = \frac{10+8a}{3}

\frac{a}{6} = \frac{10+8a}{3}

\frac{3a}{6} =10+8a

\frac{a}{2} = 10 + 8a

a = 2(10 + 8a)

a = 20 + 16a

a-16a = 20

-15a = 20

a = \frac{20}{-15}

a = \frac{4}{-3}

Therefore, the answer is a = \frac{4}{-3}

Keyword: Equations

Learn more about equations at

  • brainly.com/question/10666510
  • brainly.com/question/4460262
  • brainly.com/question/8955867

#LearnwithBrainly

4 0
3 years ago
mary had 1 3/4 pound of blackberries. Mary's friend ate 3/4 of the blackberries. How many pounds of blackberries did Mary friend
OLEGan [10]

Hey there! I'm happy to help!

If Mary's friend at 3/4 of blackberries, we will simply multiply the total number of blackberries by 3/4 to find how many blackberries Mary ate.

3/4×1 3/4= 1 5/16

Therefore, Mary's friend at 1 5/16 pounds of blackberries.

I hope that this helps! Have a wonderful day!

3 0
3 years ago
NEED HELP ASAP!
Bess [88]

Answer:

p ^ q

I promise you this is right but it's quite long to explain.

4 0
3 years ago
Other questions:
  • Estimate the area of the circle use 22/7 (fraction) as pie
    13·1 answer
  • Suppose that circles A and B have a central angle measuring 100°. Additionally, the measure of the sector for circle A is 10π m2
    14·2 answers
  • What does x equal in this problem?
    5·2 answers
  • Which answer shows y + 2x &lt; 4x-3
    7·2 answers
  • If 2= (1+ r)^7 solve the equation for r?​
    15·1 answer
  • What is the perimeter of a polygon with vertices at (−2, 1) , ​ (−2, 7) ​, (1, 11) , ​ (4, 7) ​ ​, and ​​ ​ (4, 1) ​ ?
    15·1 answer
  • Prime numbers problem
    13·1 answer
  • Don't answer it if you don't know
    13·1 answer
  • My tinky winky dippsie hurts
    8·1 answer
  • 8,508,400 divided by 10 to the sixth power
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!