£110 as 45mins times 4 radiators divided by 60 mins =3 hours
3 hours + 1 hour = 4 hours
4 hours times £20= £80
£80+£30=£110
Answer:
the answer is D
Step-by-step explanation:
Answer:
7 sweets
Step-by-step explanation:
This is because the constant of proportionality is 7 since 35/5 since it is the ratio for Natasha. Since 7 is the constant of proportionality, you multiply it by the difference of the ratios. In this case, Natasha and Henry have a difference of 1 in ratios. Since it is a difference of 1, you multiply that by the constant of proportionality, 7. 7 X 1 is equal to 7, so Natasha gets 7 more sweets than Henry.
Answer:

Explanation:

<u>make the denominators same</u>

<u>join the fractions together</u>

<u>cross multiply</u>

<u>simplify</u>

<u>group the variables</u>

<u>use quadratic formula</u>

<u>simplify the following</u>
