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
luda_lava [24]
2 years ago
15

PLEASE HELP!!! Justin is running a race. He has completed 28 km, which happens to be 70% of the total race. How long is

Mathematics
1 answer:
tensa zangetsu [6.8K]2 years ago
8 0
Answer is 40km
Explanation:
So in this question we can use a proportion
Since
28km is 70% we can write it equal to 70%
28=70

and since 100% is unknown we can write it equal to x
100=x

Then we put it in proportion form

28/x=70/100


Then cross multiply and divide

28(100)/70=x

Which would equal 40
You might be interested in
Factor completely.
kiruha [24]

Answer:   First find the GCF ( greatest Common Factor):-

GCF of  16, 24 and 48 is 8

GCF of  the x terms  is x^3

GCF of the y terms  is y^4

So GCF is 8x^3y^4

Factoring:-

= 8x^3y^4 ( 2x^6y^4  - 16x^2y^2 + 3)  answer

Step-by-step explanation:

8 0
2 years ago
Can someone please help me.understand how to solve this. 78 points if you solve.
galina1969 [7]

Answer: 65

Step-by-step explanation:

Angles of a quadrilateral add up to 360 so,

360 - 47 - 115 - 133 = 65

4 0
3 years ago
The circumference of a circular rug is 24.8 meters. What is the area of the rug? Use 3.1 for pi
mestny [16]

Answer:

The area of rug is 48.9 m^2

Step-by-step explanation:

Let's assume radius of rug is r m

we know formula for circumference as

C=2\pi r

we are given

C=24.8

and then we can solve for r

24.8=2\pi r

r=3.947

now, we can use area formula

A=\pi r^2

we can plug r

and we get

A=\pi (3.947)^2

A=48.94227

So,

The area of rug is 48.9 m^2

4 0
3 years ago
Shown in picture, PLEASE HELP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
Sidana [21]

Option 1 is the answer...

3 0
3 years ago
The length of the rectangle is 8cm longer than the width.
masya89 [10]
The length of the rectangle is 8cm longer than the width.
l=w+8
If the length of the original rectangle is increased by 6cm and the width is increased by 3cm the perimeter is 76cm.
p=76=((l+6)+(w+3))*2=(l+6+w+3)*2=(l+w+9)*2

to solve this substitute l=w+8 into the p= equation:
p=76=((w+8)+w+9)*2=
76=(2w+17)*2
76=4w+34
42=4w
10.5=w

l=w+8=10.5+8=18.5
4 0
4 years ago
Other questions:
  • Could someone help me with this question I’ve been stuck on it for 20 minutes
    6·1 answer
  • What is the prime factorization of 245?<br> A) 5 × 49 <br> B) 7 × 35 <br> C) 5 × 72 <br> D) 52 × 9
    11·2 answers
  • In a right triangle, the side c opposite the right angle is called the hypotenuse, and the other two sides a and b are called le
    10·1 answer
  • Jenna's garden is 5 yards long. How long is her garden in feet?
    13·2 answers
  • Place these numbers in order from least to greatest: ( picture)
    11·1 answer
  • 3 8/20 in simplest form
    10·1 answer
  • 1. When you roll a fair dice, what is the probability that you obtain:
    10·1 answer
  • Step by step explanation of y-10=9(x+8), written in standard form
    15·1 answer
  • What is the area of the figure?<br> 96 ft 2<br> 84 ft 2<br> 40ft 2<br> can’t be determined
    15·1 answer
  • 1/2 − 7 =1/3( − 12) <br> i need help fast
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!