3 years ago

10. Estimate: 46.8 - 32.97

Mathematics

1 answer:

Dvinal [7]3 years ago

7 0

The answer is 13.83 if you use a calculator

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Which of these two expressions represent the phrase "five plus two times a number"? A. 5n+2n and 2n+5n B. 5+2n and 2+5n C. 2n+5

Allushta [10]

Answer:

It would be D because you are timing 2 by a number which would have n together

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2 years ago

Someone please help me

Karolina [17]

Answer:

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2 years ago

Please can you give me the answers to the questions above in standard form.

ivanzaharov [21]

Answer:

a) $4.5 \times 10^{11}$

b) $3.5 \times 10^{3}$

Step-by-step explanation:

a) We have to simplify the below expression in standard form.

The expression is $(5\times 10^{3}) \times (9 \times 10^{7})$

Now, $(5\times 10^{3}) \times (9 \times 10^{7})$

= $(9 \times 5) \times (10^{3} \times 10^{7})$

= $45 \times 10^{(3 + 7)}$ {Since $a^{b} \times a^{c} = a^{(b + c)}$ }

= $45 \times 10^{10}$

= $4.5 \times 10^{11}$ (Answer)

b) We have to simplify the below expression in standard form.

The expression is $(7\times 10^{5}) \div (2 \times 10^{2})$

Now, $(7\times 10^{5}) \div (2 \times 10^{2})$

= $(7 \div 2) \times (10^{5} \div 10^{2})$

= $3.5 \times 10^{(5 - 2)}$ {Since $a^{b}\div a^{c} = a^{(b - c)}$ }

= $3.5 \times 10^{3}$ (Answer)

3 0

2 years ago

in march, Arnold finds a guitar with a price of $650 that he wants to buy, but he only has $300 saved. In September, Arnold has

belka [17]

Answer:

Yew, he has enough money to buy the guitar in september.

Step-by-step explanation:

300*0.75=225 300+225=525

650*0.35=195 650-195=455

sales tax: 455*0.05=22.75 455+22.75=477.75

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2 years ago

Hello, I need help with question ASAP please

Yuliya22 [10]

Do 180 and subtract 171 so 9

8 0

2 years ago

Read 2 more answers