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sattari [20]
3 years ago
10

I also need help with this question.

Mathematics
2 answers:
Softa [21]3 years ago
5 0
1. 4.8 x 10^9
2. 2 x 10^6
Anton [14]3 years ago
3 0
1. 4x1.2=4.8
Add the squares
5+4=9
4.8x10^9
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You have quarters and dimes that total $2.80. your friends says its possible that the number of quarters is 8 more than the numb
Sidana [21]

\text{Let the number of dimes be x, then as per the friend the number of }\\
\text{quarters should be 8 more than dimes, so number of quarters}=x+8\\
\\
\text{we know that the value of 1 dime is }\$ 0.10 \text{ value of one quarter is }\$0.25\\
\\
\text{And since the total value of quarters and dimes is }\$2.80, \text{ so we have}\\
\\
0.10(x)+0.25(x+8)=2.80\\
\\
\Rightarrow 0.10x+0.25x+2=2.80\\
\\
\Rightarrow 0.35x=2.80-2\\
\\
\Rightarrow 0.35x=0.80

\Rightarrow x=\frac{0.80}{0.35}=2.29\\
\\
\text{so if we take 2 dimes then we'll have to take 10 quarters according to friend.}\\
\\
\text{So the statement of friend is } WRONG

6 0
3 years ago
8. The measures of two angles in an isosceles triangle are shown in the diagram.
mote1985 [20]

Answer:

A

Step-by-step explanation:

Because 45 + 2x = 180 divide it by 2 gives 4

8 0
3 years ago
On the day after my birthday this year, I can truthfully say: "The day after tomorrow is Monday". On which day is my birthday?
andriy [413]

Answer: Friday

Step-by-step explanation:

5 0
2 years ago
What is 1(z) when z = -7/12
Firlakuza [10]
It will just be -7/12 because anything times 1 stays the same
8 0
3 years ago
Read 2 more answers
Whisper is exercised twice a day.
aleksklad [387]

Answer:

I:23/48

ii 25/48

Step-by-step explanation:

30min=0.5hr

total time exercised: 11+0.5=11.5hr

Divided by total hours of a day:

11.5/24=115/240=23/48

ii:(48-23)/48

4 0
3 years ago
Read 2 more answers
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