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
Katen [24]
3 years ago
6

Maths Share £72 in the ratio 2:7

Mathematics
1 answer:
avanturin [10]3 years ago
5 0
2+7= 9 
72 / 9 = 8
8 * 2 = 16
<span>8 * 7 = 56 
</span>16:56
<span>
Key: 
</span>* = times
<span>/ = divide</span>
You might be interested in
TotCo is developing a new deluxe baby bassinet. If the length of a newborn baby is normally distributed with a mean of 50 cm and
Delicious77 [7]

Answer:

<em>The interior length of the bassinet to ensure that 99 percent of newborn babies will fit   = 1.7 cm</em>

Step-by-step explanation:

<u><em>Explanation:</em></u>-

<em><u>step(i):</u></em>-

Given mean of population = 50 cm  

<em>standard deviation of Population = 5 cm</em>

<em>Given Margin of error = 10 cm</em>

<em>The Margin of error is determined by </em>

<em></em>M.E = \frac{Z_{\alpha } S.D}{\sqrt{n} }<em></em>

<u><em>Step(ii)</em></u><em>:-</em>

<em>Given level of significance ∝ = 99 % or 1 %</em>

Z₀.₀₁ = 2.576

10 = \frac{2.576 X 5}{\sqrt{n} }

\sqrt{n}  = \frac{2.576 X 5}{10}

√n = 1.3

squaring on both sides , we get

<em>n = 1.69≅ 1.7 cm</em>

<u><em> Final answer:</em></u>-

<em>The interior length of the bassinet to ensure that 99 percent of newborn babies will fit   = 1.7 cm</em>

4 0
3 years ago
Solve using the elimination method <br> 0.3x-0.2y=4<br> 0.2x+0.5y=-21/23
Aneli [31]
Do this and then simplify the result

5 0
3 years ago
Express 72% as a decimal and as a fraction in simplest form
Greeley [361]
Decimal: 0.72
Fraction: 18/25
8 0
3 years ago
Read 2 more answers
Solving Multi-Step Equations
KengaRu [80]
1.\\2n+3n+7=-41\\5n=-41-7\\5n=-48\\n=-48:5\\\boxed{n=-9.6}\\------------------\\2.\\2x-5x+6.3=-14.4\\-3x=-14.4-6.3\\-3x=-20.7\\x=(-20.7):(-3)\\\boxed{x=6.9}\\------------------

3.\\2z+9.75-7z=5.15\\-5z=5.15-9.75\\-5z=-4.6\\z=(-4.6):(-5)\\\boxed{z=0.92}\\------------------\\4.\\3h-5h+11=17\\-2h=17-11\\-2h=6\\h=6:(-2)\\\boxed{h=-3}\\------------------

5.\\2t+8-t=-3\\t=-3-8\\\boxed{t=-11}\\------------------\\6.\\6a-2a=-36\\4a=-36\\a=-36:4\\\boxed{a=-9}\\------------------

7.\\3c-8c+7=-18\\-5c=-18-7\\-5c=-25\\c=(-25):(-5)\\\boxed{c=5}\\------------------\\8.\\7g+14-5g=-8\\2g=-8-14\\2g=-22\\g=-22:2\\\boxed{g=-11}\\------------------

9.\\2b-6+3b=14\\5b=14+6\\5b=20\\b=20:5\\\boxed{b=4}\\------------------\\10.\\2(a-4)+15=13\\2a-8=13-15\\2a=-2+8\\2a=6\\a=6:2\\\boxed{a=3}\\------------------

11.\\7+2(a-3)=-9\\2a-6=-9-7\\2a=-16+6\\2a=-10\\a=-10:2\\\boxed{a=-5}\\------------------\\12.\\13+2(5c-2)=29\\10c-4=29-13\\10c=16+4\\10c=20\\c=20:10\\\boced{c=2}
8 0
3 years ago
PLZ, HELP WILL GIVE 20 MORE POINTS FOR FREE!!!!!!
GrogVix [38]

Answer:

16x+12

Step-by-step explanation:

4 sides

2*(5x-2 )

10x-4

2(3x+8)

6x+16

10x-4+6x+16=16x+12

7 0
3 years ago
Read 2 more answers
Other questions:
  • How do you graph y=-3x+2 y=2x-3
    15·1 answer
  • what must be subtracted from 4x4 - 2x3 - 6x2 + x - 5 so that the answer is exactly divisible by x + x - 2
    6·1 answer
  • 4.31(69)+4.31(31)<br>solve
    9·1 answer
  • Suppose that the time students wait for a bus can be described by a uniform random variable X, where X is between 5 minutes and
    5·1 answer
  • What two numbers multiplied together equal 900, but also added together equal -68?
    11·1 answer
  • Gle<br> 22+22<br> Whoever answers first gets Brainlyiest
    10·2 answers
  • Alexis divided a 1 3/4 pound bag of apples among 3 friends. how many pounds of apples did each friend receive?
    11·1 answer
  • Find the area of the shape 11cm 14cm 9cm 20cm who ever answers correctly gets brainlist
    11·2 answers
  • a person runs at a constant speed of 9.2 miles per hour for 6 minutes and 30 seconds. How far did they travel in yards.
    5·2 answers
  • Yallah yallah i dont understand!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!