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Ivanshal [37]
3 years ago
8

At the parents evening the ratio of mums to dads was 3:2. Out of 500 appointments how many were with mums?

Mathematics
1 answer:
guajiro [1.7K]3 years ago
3 0

Answer:

300

Step-by-step explanation:

Sum the parts of the ratio : 3 + 2 = 5 parts

Divide the number of appointments by 5 to find the value of one part of the ratio, that is

\frac{500}{5} = 100 ← value of 1 part of the ratio

The mums consisted of 3 parts, hence

3 × 100 = 300 ← appointments with mums

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sally works 38 hours er week her weekly wage is £355.68 she recieves a pay increase of 23p per hour whats her new weekly wage
zhenek [66]

Answer:

  • £364.42

Step-by-step explanation:

  • Weekly wage =  £355.68
  • Work week = 38 hours

<u>Hourly pay is:</u>

  • £355.68/38 = £9.36

<u>New payment per hour:</u>

  • £9.36 + £0.23 = £9.59

<u>New weekly wage is:</u>

  • £9.59*38 = £364.42
4 0
3 years ago
What is 3(x+2)-10=4x-6+x <br>​
Natalija [7]

Answer:

1=x or x=1

Step-by-step explanation:

3(x+2)-10=4x-6+x

distribute

3x+6-10=4x-6+x

combine like terms

3x-4=5x-6

subtract 3x from each side

-4=2x-6

add 6 to both sides

2=2x

divide by 2

1=x or x=1

8 0
3 years ago
Read 2 more answers
Find the value<br> 47-36÷3(5+7-3^2)
Salsk061 [2.6K]
The value of 47-36÷3(5+7-3²) is 11.
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3 years ago
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Complete the table for the radioactive iotope. (Round your anwer to 2 decimal place. Iotope : 239 Pu
Marizza181 [45]

If the radio active isotope has the half life of 24100 years, then the initial quantity is 2.16 grams

The half life in years = 24100

Consider the quantity of the radio active isotope remaining

y = Ce^{kt}

When t = 1000 the y = 1.2

y = C/2 when t = 1599

Substitute the values in the equation

C/2 = Ce^{24100k}

Cancel the C in both side

1/2 = e^{24100k}

Here we have to apply ln to eliminate the e terms

ln (1/2) = 24100k

k = ln(1/2) / 24100

k = -2.87× 10^-5

To find the initial value we have to substitute the value of k and y in the equation

1.2 = Ce^{1000 ×  -2.87× 10^-5}

C = 1.2 / e^(-0.0287)

C = 2.16 gram

Hence, the initial quantity of the radioactive isotope is 2.16 gram

Learn more about half life here

brainly.com/question/4318844

#SPJ4

7 0
1 year ago
-28-6b=8 I can’t get the answer I need help.
SVETLANKA909090 [29]

Answer:

6

Step-by-step explanation:

-28-6b=8

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b=6

5 0
2 years ago
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