answer.
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
DanielleElmas [232]
2 years ago
12

14. teacher needs 70 lengths of string cut to 40 cm each. If balls of string are 10m longhow many balls will be needed.

Mathematics
2 answers:
lorasvet [3.4K]2 years ago
7 0
70×40=2800 cm, which would be the total amount of cm that the teacher needs for the balls.

10m = 1000cm 

<span> = 2.8</span>

<span>There will be 3 balls of string.</span>
lesantik [10]2 years ago
6 0
70×40=2800cm which is the total amount of cm that the teacher needs

10m = 1000cm 

\frac{2800}{1000} = 2.8

there will be 3 balls of string
You might be interested in
In a recent survey ,5 out of every 8 middle school students use a computer to complete school projects .franklin middle school h
NeX [460]
The answer i think its 104
3 0
2 years ago
Chuck has a gross pay of $815.70. By how much will Chuck’s gross pay be reduced if he has the following items withheld? federal
tangare [24]

Chuck has a gross pay of $815.70. His gross pay will be reduced by:

  • Federal tax of $56;
  • Social Security tax that is 6.2% of his gross pay;
  • Medicare tax that is 1.45% of his gross pay;
  • State tax that is 19% of his federal tax.

Let's count:

1. gross pay of $815.70 - 100%,

Social Security tax of $x - 6.2%.

Then

\dfrac{815.70}{x}=\dfrac{100}{6.2} ,\\ \\815.70\cdot 6.2=x\cdot 100,\\ \\x=\dfrac{815.70\cdot 6.2}{100} =50.5734.

2. gross pay of $815.70 - 100%,

Medicare tax of $y - 1.45%.

Then

\dfrac{815.70}{y}=\dfrac{100}{1.45} ,\\ \\815.70\cdot 1.45=y\cdot 100,\\ \\y=\dfrac{815.70\cdot 1.45}{100} =11.82765.

3. Federal tax of $56 - 100%,

State tax $z - 19%.

Then

\dfrac{56}{z}=\dfrac{100}{19} ,\\ \\56\cdot 19=z\cdot 100,\\ \\z=\dfrac{56\cdot 19}{100} =10.64.

4. Chuck’s gross pay will be reduced by

\$56+\$50.5734+\$11.82765+\$10.64=\$129.04105\approx \$129.04.

3 0
2 years ago
Read 2 more answers
A boat travels at constant speed. After 20 minutes the boat had traveled 2.5 miles. How long does it take the boat to reach the
schepotkina [342]

120 minutes

Step by step:

divide 20 by 2.5 to find how many minutes it takes to drive 1 mile, then multiply that by 15 miles

7 0
2 years ago
If the instructions for a problem ask you to use the smallest possible domain to completely graph two periods of y = 5 + 3 cos 2
erica [24]
Hello,

y=5+3*cos (2(x-π/3))

The function is periodic with periode=2π.


-1<=cos (2(x-π/3))<=1
==>-1*3<=3*cos (2(x-π/3))<=3*1
==>5-3<=5+3cos(2(x-π/3))<=5+3
==>2<= y<=8


8 0
2 years ago
Bob withdrew money from an ATM, put the receipt in an envelope, and filled in the information in his check register.
lora16 [44]

Answer:It is important to record each transaction so Bob knows how much money is in his account. That prevents being overdrawn. Recording debits and deposits helps with budgeting. It is good to keep receipts in case of any bank errors.

Step-by-step explanation:

5 0
1 year ago
Read 2 more answers
Other questions:
  • A plant can either have a smooth seed (p) or a rough seed (q). Rough seeds are recessive and smooth seeds are dominant. In a pop
    15·1 answer
  • Find the cube roots of 27(cos 330Á + i sin 330Á). Please help c:
    8·2 answers
  • Given the circle with the equation (x - 3)2 + y2 = 49, determine the location of each point with respect to the graph of the cir
    9·2 answers
  • A survey asks 48 randomly chosen students if they plan to buy a school newspaper this week. Of the 48 surveyed, 32 plan to buy a
    12·1 answer
  • A research submarine descends 65 meters per minutes to a depth of 4485 m, conducts experiments, and then ascends at a rate of 65
    9·2 answers
  • (a) Which of the following has only one subset? (1)
    14·1 answer
  • -4x = -1/2 ( 10x + 18 ) can anyone coment
    5·2 answers
  • Construct a table of values for the following functions using the integers from -4 to 4.
    13·1 answer
  • There were 200 members at a skating club. After some new members went in, there were 256 members altogether at the skating club.
    6·1 answer
  • A hotel spent $504 on new hair dryers. The hair dryers cost $8 each. The hotel has 6 floors with the same number of rooms on eac
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!