All categories

2 years ago

This is confusing me! Please help

Mathematics

1 answer:

podryga [215]2 years ago

8 0

Answer:

£2.85

Step-by-step explanation:

Lucy paid this amount she used six coin remember you have to calculate them to get the 85 and u can't use £1

three different ways she could have paid

50+20+10+5=85(£2.85)

50+10+10+10+5=85(£2.85)

20+20+20+10+10+5=(£2.85)

You might be interested in

I need help solving for x: log x = 2.46 - 1.12 * log y

Mariulka [41]

$\bf log_{{ a}}(xy)\implies log_{{ a}}(x)+log_{{ a}}(y)
\\\\\\
% Logarithm of exponentials
log_{{ a}}\left( x^{{ b}} \right)\implies {{ b}}\cdot log_{{ a}}(x)
\\\\\\
{{ a}}^{log_{{ a}}x}=x\impliedby \textit{log cancellation rule}\\\\
-----------------------------\\\\$

$\bf log(x)=2.46-1.12log(y)\iff log_{10}(x)=2.46-1.12log_{10}(y)
\\\\\\
log_{10}(x)=2.46-log_{10}(y^{1.12})\implies log_{10}(x)+log_{10}(y^{1.12})=2.46
\\\\\\
log_{10}(x\cdot y^{1.12})=2.46\implies 10^{\cfrac{}{}log_{10}(x\cdot y^{1.12})}=10^{2.46}
\\\\\\
xy^{1.12}=10^{2.46}\implies \boxed{x=\cfrac{10^{2.46}}{y^{1.12}}}$

8 0

4 years ago

Which expressions are equivalent to 1 5 ⋅ 1 5 ⋅ 1 5 ⋅ 1 5 5 1 ⋅ 5 1 ⋅ 5 1 ⋅ 5 1 start fraction, 1, divided by, 5, end fr

Sergio039 [100]

Answer:

The possible expressions are:

$\frac{1}{5} X \frac{1}{5} X \frac{1}{5}X \frac{1}{5}$

$\frac{1}{5^4}$

$\frac{1}{625}$

Step-by-step explanation:

We are to determine the expression equivalent to:

$\frac{1}{5} \cdot \frac{1}{5} \cdot \frac{1}{5}\cdot \frac{1}{5}$

Since the options are not listed, I would give you possible answers.

$\frac{1}{5} \cdot \frac{1}{5} \cdot \frac{1}{5}\cdot \frac{1}{5} = \frac{1}{5} X \frac{1}{5} X \frac{1}{5}X \frac{1}{5}$

$\frac{1}{5} X \frac{1}{5} X \frac{1}{5}X \frac{1}{5}=(\frac{1}{5})^4=\frac{1^4}{5^4}=\frac{1}{5^4}$

$\frac{1}{5} X \frac{1}{5} X \frac{1}{5}X \frac{1}{5}=\frac{1}{625}$

4 0

4 years ago

The truck is going to be packed with washing machines. These measure 5 ft. by 5 ft. by 6 ft. How many washing machines can be pa

Leto [7]

Answer:

I will answer

Step-by-step explanation:

how much is the truck in area

7 0

3 years ago

Read 2 more answers

Please help! Thank you!

Bezzdna [24]

Answer

I know the answer but i can not write it all out so i will say the last one is greatest the next to last one is in the right spot and switch the first two

Step-by-step explanation:

Sorry couldn't help too much

8 0

4 years ago

Judy is inside a cave at an elevation of 20 meters. She will lower herself in 6 equal descents

alexgriva [62]

Answer:

20-6x<-10

Step-by-step explanation:

Got it right on my test

3 0

3 years ago

Read 2 more answers

This is confusing me! Please help​

This is confusing me! Please help