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3 years ago

Can somebody please help me either these two

Mathematics

2 answers:

Zarrin [17]3 years ago

4 0

1. 8.96 x 105 I think
2. <span>4.25 x 10-4
</span>

pochemuha3 years ago

4 0

Problem 1.

9.3 * 10^7 - 3.4 * 10^6 =

You need the same exponent:

= 9.3 * 10^7 - 0.34 * 10^7

= 8.96 * 10^7

Problem 2.

0.00045 - 2.5 * 10^(-5) =

= 45 * 10^(-5) - 2.5 * 10^(-5)

= 42.5 * 10^(-5)

= 4.25 * 10^(-4)

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Sophia and isabella get a reward of 117 dollars ina ratio of 1:8.What fraction of the reward does sophia get?

worty [1.4K]

Answer:

The amount of reward that Sophia receives is $\$13$

Step-by-step explanation:

Let

x------> amount of reward that Sophia receives

y-----> amount of reward that Isabella receives

we know that

$\frac{x}{y}=\frac{1}{8}$

$x=\frac{1}{8}y$ ------> equation A

$x+y=117$ -----> equation B

Substitute equation A in equation B

$\frac{1}{8}y+y=117$

$\frac{9}{8}y=117$

$y=117*8/9=\$104$

Find the value of x

$x=\frac{1}{8}(104)=\$13$

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3 years ago

PLEASE HELP kelly invested $1875 in a savings account which earns 3.35% interest compounded quarterly what will the account be w

attashe74 [19]

The account will be worth $2368.20 in 7 years.

The compound interest formula is

$A=p(1+\frac{r}{n})^{n\times t}$

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3.35% = 3.35/100 = 0.0335.

Using our information, we have:
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3 years ago

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Answer:

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