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
Kryger [21]
2 years ago
12

please help! this assgiment was due like a week ago and i’m missing so many more i just need help finishing this!

Mathematics
1 answer:
mariarad [96]2 years ago
6 0

Answer:

17.5hrs

Step-by-step explanation:

Set they worked for x hours,

10x+35=210

10x=175

x=17.5

You might be interested in
Five widgets and three gadgets cost $109. 90.
erma4kov [3.2K]

Answer:

one gadget costs $15.80

Step-by-step explanation:

Let w = cost of one widget

Let g = cost of one gadget

Given:

  • Five widgets and three gadgets cost $109. 90

⇒ 5w + 3g = 109.9

Given:

  • One widget and four gadgets cost $75. 70

⇒ w + 4g = 75.7

Rewrite  w + 4g = 75.7  to make w the subject:

⇒ w = 75.7 - 4g

Substitute into  5w + 3g = 109.9  and solve for g:

⇒ 5(75.7 - 4g) + 3g = 109.9

⇒ 378.5 - 20g + 3g = 109.9

⇒ 378.5 - 109.9 = 20g - 3g

⇒ 268.6 = 17g

⇒ g = 15.8

Therefore, one gadget costs $15.80

To find the cost of one widget, substitute the found value for g into
w = 75.7 - 4g and solve for w:

⇒ w = 75.7 - 4(15.8)

⇒ w = 75.7 - 63.2

⇒ w = 12.5

Therefore, one widget costs $12.50

5 0
2 years ago
Find the surface area of each figure.
timurjin [86]

Answer:

For a cylinder of radius R and height H, the surface area is given by:

A = 4*pi*R^2 + H*(2*pi*R)

Where pi = 3.14

We can just use that formula for each one of the given cylinders.

1) We can see that the diameter is 10 yd, and the radius is half of the diameter, then the radius is:

R = 10yd/2 = 5yd

And the height is 3yd, then H = 3yd

Replacing these in the area equation, we get:

A = 4*3.14*(5 yd)^2 + 3yd*(2*3.14*5yd) = 408.2 yd^2

2) Here we can see that the diameter is 24 cm, then the radius is:

R = 24cm/2 = 12cm

And the height is H = 10cm

Then the area is:

A = 4*3.14*(12 cm)^2 + 10cm*(2*3.14*12cm) = 2,562.24 cm^2

3) In this case we have a radius equal to 12 cm, and a height equal to 7 cm, then the area is:

A = 4*3.14*(12 cm)^2 + 7cm*(2*3.14*12cm) = 2,336.16cm^2

4) Here is hard to see the measures, I think that here we have:

diameter = 8m

Then R = 8m/2 = 4m

And the height is also 8m, H = 8m

Then the area is:

A = 4*3.14*(4 m)^2 + 8 m*(2*3.14*4m) =401.92 m^2

6 0
2 years ago
Carolyn is planning a community garden she would like the length of the garden to be 4 feet more than its width. Carolyn wants t
SCORPION-xisa [38]

Let's make the width 'x'.

And the length 'x+4'.

Perimeter is adding up ALL the sides.

Add: x + x + 4 + x + x + 4.

Simplify:

x + x + 4 + x + x + 4 = 4x + 8

4 0
3 years ago
Find the surface area of the triangular prism?
viva [34]

Answer:

Step-by-step explanation:

Surface area of a triangular prism

Height = 8cm

12cm

10cm

This given as:

S.A = B + Ph

8 0
2 years ago
8
masha68 [24]

Answer: Um It’s C?

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Please help!
    6·2 answers
  • Graph the inequality <br> b-2&gt;-9
    6·2 answers
  • Rewrite the rectangular form of the complex number in its equivalent polar form. Approximate all angle measures to the nearest d
    14·2 answers
  • Which graph is defined by the function given below?
    14·1 answer
  • What is .5 as a percent?
    13·1 answer
  • What is the slope of the line passing through (2,2) and (10,6)
    6·1 answer
  • Please Help? Will give Brainliest to a good explanation because I feel like those ppl should get more attention for their amazin
    10·1 answer
  • Help meh pls 【=◈︿◈=】 What division problem does this area model represent?
    10·1 answer
  • 1. <br><br><br>Find the slope of the line1. <br><br><br>a) -5/4 <br> b) 5/4 <br> c) -4/5 <br> d) 4/5
    13·2 answers
  • what's the width of the base of a rectangle if the length is 70ft less than twice the width and the perimeter is 760
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!