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
NARA [144]
3 years ago
6

It takes 40 minutes for eight people to paint four walls how many minutes does it takes 10 people to paint seven walls

Mathematics
1 answer:
sasho [114]3 years ago
8 0
8r(40)=4

r=1/80  that is the rate for each person...

10rt=7  using r we found before

10(1/80)t=7

t/8=7

t=56 minutes.
You might be interested in
Factor completely 3x − 12.<br><br> 3(x − 4)<br><br> 3(x + 4)<br><br> 3x(−12)<br><br> Prime
garri49 [273]
3x - 12
3(3x/3 - 12/3)
3(x - 4)

The answer is: 3(x - 4).
6 0
3 years ago
Read 2 more answers
A road sign gives drivers information about traffic on busy highways. One sign shows 15 miles in 20 minutes. What is this speed
SIZIF [17.4K]

Answer: Speed in miles per hour is 45 mph.

Step-by-step explanation:

Since we have given that

Distance covered = 15 miles

Time taken to cover the above mentioned distance = 20 minutes

We need to calculate the speed in miles per hour ,

As we know the formula for " Speed " i.e.

Speed=\frac{Distance}{Time}

Now, we will put the value of distance and time in the above formula:

Speed=\frac{15}{20}\times 60\\\\Speed=15\times 3\\\\Speed=45\ mph

Hence, Speed in miles per hour is 45 mph.

8 0
3 years ago
Read 2 more answers
The sum of two consecutive numbers is 35. What is the smallest number?
sweet-ann [11.9K]
Answer i got is 17, 18
4 0
3 years ago
Can someone plsss help me?!
MAXImum [283]

Answer:

Angle A is 101

Angle B is 79

Angle C is 83

Angle D is 97

Step-by-step explanation:

Vertical angles are congruent, which applies to C.

Lines are parallel so 79 and angle B are the same

Angle a is 101 because its a supplementary angle

Angle D is 97 because its also a supplementary angle so you subtract 83 from 180.

3 0
2 years ago
The length of a rectangle exceeds the width by 7 cm. If the area
Artyom0805 [142]

Answer:

Length = 12cm

Step-by-step explanation:

The dimensions of the recatngle is:

- width → x

and

- length → x+7

The area of a rectangle follows the formula: length*width

Meaning: x * (x + 7) = 60

Expand that: x^2 + 7x = 60

Rearragne the equation and factorise it

(x-5)(x+12) = 0

The width cannot be a negative value, so the answer must be 5.

Remember that x was the width and the length is the width add the 7.

So the length is 12 cm.

8 0
3 years ago
Other questions:
  • The F-ratio increases as _________. the variability between means increases relative to the variability within groups the variab
    7·1 answer
  • Look at the triangle: A right angle triangle is shown with hypotenuse equal to 10 centimeters. An acute angle of the triangle is
    9·2 answers
  • Whats the value of 5y if -2(3y+5)=-4
    7·1 answer
  • ⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️help me pls⚠️⚠️⚠️⚠️⚠️​⚠️⚠️⚠️
    11·1 answer
  • Question 4 of 10
    10·1 answer
  • Factorise 2a – 4a3 + 6abc
    14·1 answer
  • Bathroom tiles cost £1.65 each.<br>Work out the total cost of 90 tiles.​
    8·2 answers
  • In ΔIJK, k = 7.6 cm, j = 7.5 cm and ∠J=116°. Find all possible values of ∠K, to the nearest 10th of a degree.
    15·1 answer
  • What inequality does this number line show?
    15·1 answer
  • 9. YOU BE THE TEACHER Your friend
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!