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
lukranit [14]
3 years ago
9

If dave buys a sample of 70 nails and 6 are bad and 64 are good and he needs 2500 good nails how many nails should dave buy

Mathematics
1 answer:
dexar [7]3 years ago
5 0

Answer:

Dave\ should\ buy\ 2735\ nails.

Step-by-step explanation:

Number\ of\ nails=70\\\\Good\ nails=64\\\\percentage\ of\ good\ nails=\frac{good\ nails}{total\ nails}\times 100\\\\percentage\ of\ good\ nails=\frac{64}{70}\times 100\\\\percentage\ of\ good\ nails=91.42857\%\\\\Let\ for\ 2500\ good\ nails\ he\ has\ to\ buy\ x\ nails\\\\91.42857\%\ of\ x=2500\\\\\frac{91.42857}{100}\times x=2500\\\\x=\frac{2500}{0.9142857}=2734.375\\\\x\approx 2735

You might be interested in
The base of a triangle is 4 meters shorter than the height. What are the height and length of the triangle if its area is 48 squ
Sergeeva-Olga [200]

Answer: H=12 and B=8

Looking at the problem, you are given the area, <em>a</em> , and told the h is 4 meters longer than <em>b; </em>in other words, <em>h</em>=<em>b</em>+4.

Since <em>a=</em>1/2<em>bh</em>, you can replace <em>a</em> with 48. Also, since <em>h</em> is <em>b</em>+4, you can replace that as well. You'd end up with this equation:

48=1/2b(b+4)

1. Seeing that 48 is 1/2 of <em>b,</em> you know that you have twice the value of 48, or 96. So, you can put that 96=<em>b(b+4). </em>

2.<em> </em>Now, thinking through factors of 96-  1 x 96, 2 x 48, 3 x 32, 4 x 24, 6 x 16, or 8 x 12, the only pair in which <em>h </em>is b+4 is 12 x 8.

Hope this helps,

Lacia :))

8 0
2 years ago
Estado tratando esto por mucho tiempo​
maksim [4K]

Answer:

1/2

Step-by-step explanation:

Paso Uno: \frac{5}{1}* \frac{5}{1} *\frac{5}{1}* \frac{5}{1} *\frac{5}{1}* 1/10= 5/10

Paso Dos: Simplificar:

5/5=1

10/5=2

Paso Tres: fracción es 1/2

6 0
3 years ago
PLEASE HELP ASAP!!<br><br> Solve the equation<br><br> |x−7|=8
steposvetlana [31]

here you go -brainliest

6 0
3 years ago
Find the missing lengths.
Rama09 [41]

Answer:

x = 5√2

Step-by-step explanation:

The triangle on the right is a special right triangle, so we know that the adjacent side to 60° is 5. Since the left triangle is a 45-45-90, the hypotenuse is the leg times √2, so the value of x is 5√2

4 0
2 years ago
Which fraction is equivalent to -7/8<br><br> 1. 8/-7<br><br> 2. -7/-8<br><br> 3. 8/7<br><br> 4. 7/-8
IceJOKER [234]

Answer:

Your answer is answer no 4 = 7/-8

7 0
3 years ago
Read 2 more answers
Other questions:
  • (2x + y) 6 power how to solve binomial theorem
    15·2 answers
  • Entd<br> OOOO<br> OC<br> Clear a<br> -8<br> 6<br> 4<br> 222<br> Y intercept
    13·1 answer
  • Donald earns $4,500 per month. He wants to set aside 5% of his income for emergencies and 10% for saving. How much should he set
    8·2 answers
  • !!!10 POINTS!!!<br> How many sides does a regular decagon have?<br> А. 11<br> В. 8<br> C. 9<br> D.10
    14·2 answers
  • Helpp Neededd #15 !!
    9·1 answer
  • -3x -4.6 = 5.9<br> x = ?
    12·2 answers
  • The next number in the sequence -5, -2, 4, 13 is 25. Is this conjecture true or false?
    6·1 answer
  • Ian runs a farm stand that sells blueberries and apples. Each pound of blueberries sells for $1.75 and each pound of apples sell
    13·1 answer
  • 9/12 - 1/3 ? help i will mark brainly
    7·2 answers
  • HELP PLEASE!!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!