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
Ksivusya [100]
3 years ago
12

Helppppppppppp please

Mathematics
1 answer:
myrzilka [38]3 years ago
7 0

Answer:IDK

Step-by-step explanation:

HAVE NO IDEAAT ALL

You might be interested in
How do you write the following standard number in expanded notation?
Alex73 [517]
2 × 100 = 2002 × 10 = 202 × 1 = 20 × 0.1 = 07 × 0.01 = 0.07
D. <span>200 + 20 + 2 + 0.07</span>
3 0
3 years ago
a lamp post cast a Shadow 15 feet long while a 6 foot man standing nearby cast a shadow 5 ft long. what proportion can be used t
kolezko [41]

Answer:

6/5=x/15

Step-by-step explanation:

6/5=x/15,where x is hight of the lamp post

x=18

3 0
3 years ago
A collection of nickels and dimes is worth $9.45. If the number of dimes is doubled, the value is
eduard

Answer:

The number of nickels is 45 and the number of dimes is 72.

Step-by-step explanation:

Let

x ----> number of nickels

y ----> number of dimes

Remember that

1\ nickel=\$0.05

1\ dime=\$0.10

so

0.05x+0.10y=9.45 ------> equation A

0.05x+0.10(2y)=16.65

0.05x+0.20y=16.65 ------> equation B

<em>Solve the system by substitution</em>

we have

0.05x+0.10y=9.45 ------> equation A

0.05x+0.20y=16.65 ------> equation B

Multiply both equations by 100 both sides

5x+10y=945 ---->5x=945-10y --> equation C

5x+20y=1,665 ----> equation D

substitute equation C in equation D

(945-10y)+20y=1,665

solve for y

945+10y=1,665

10y=1,665-945

10y=720

y=72\ dimes

Find the value of x

5x=945-10y

5x=945-10(72)

5x=225

x=45\ nickels

<em>Alternative Method</em>

Solve the system by graphing

Remember that the solution is the intersection point both graphs

using a graphing tool

the solution is the point (45,72)

therefore

The number of nickels is 45 and the number of dimes is 72.

7 0
3 years ago
A cylindrical rain barrel has a radius of 2 feet and holds a total of 30 cubic feet of water. How tall is the rain barrel? Use 3
BabaBlast [244]
B. 2.39 feet. xoxo
pls rate my answer and mark me:))
3 0
3 years ago
Read 2 more answers
At this weekend’s soccer game, 20 out of the first 50 people who entered the field were not wearing hats. If this sample is repr
Sedbober [7]

Answer:

150 people

Step-by-step explanation:

20/50 = 40%
So 40% are wearing hats and 60% aren't

0.6=60%

250x0.6= 150

6 0
2 years ago
Other questions:
  • What is the additive inverse of -7<br><br> -7<br> 7<br> -|-7|<br> -(-(-7))<br> Please help
    11·2 answers
  • (03.01) The domain of the following relation R {(6, −2), (1, 2), (−3, −4), (−3, 2)} is 1 {−3, −3, 1, 6} 2 {−4, −2, 2, 2}
    5·1 answer
  • To save money, you put $200 in your bank account each week. After saving for 44 weeks, you have $1,700 dollars in your account.
    5·2 answers
  • Solve the equation. <br><br> h + | -8| = 15
    12·2 answers
  • Help me I need it asap<br>​
    15·1 answer
  • PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!
    12·1 answer
  • What is differentiation....​
    10·2 answers
  • Solve for x: 3 &lt; x + 3 &lt; 6
    6·1 answer
  • What is the standard form of this linear equation? 9x+2y=5x+6
    11·1 answer
  • Factor x^2-a^2-10a-25 completely.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!