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Mandarinka [93]
2 years ago
5

Out of 90 scientists who study dinosaurs, 30 study the T-Rex, 22 study the Brontosaurs and 10 study both. How many of this group

of scientists studies another speices of dinosaurs?
Mathematics
1 answer:
adell [148]2 years ago
4 0

Answer:

it 152 u have to add 3 time like this

90+10+30+ it gives you 152

Step-by-step explanation:

hope this works or help

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Naily [24]

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Convert the mixed numbers to improper fractions, then find the LCD and combine.

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Mixed Number Form:

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Step-by-step explanation:

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3 years ago
What is the value of x in the equation 2^2x = 2^3?
postnew [5]

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Step-by-step explanation:


8 0
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HELP asap pls, first right=brainliest
Sergeeva-Olga [200]

Answer:

Your answer would be A:12

Step-by-step explanation:

4 0
3 years ago
2. Saul invested an average of $425 per month since age 30 in various securities for his
BabaBlast [244]

Answer:

$507.30

Step-by-step explanation:

-Given the monthly deposits are $425 and the interest rate is 3.5% for 30 years.

-The amount of the investment after 30 years is calculated as;

A=P(1+i/n)^n, n=time \ in \ months\\\\=425(1+0.035/12)^{30\times 12}\\\\=1212.65

-Assuming Saul started saving at age 20, his investment term will be 40 yrs.

-His investment amount is thus:

A=P(1+i/n)^n, n=time \ in \ months\\\\=425(1+0.035/12)^{40\times 12}\\\\=1719.95

#We subtract to find how much more he would have if he started saving at 20;

=A_{20}-A_{30}\\\\=1719.95-1212.65\\\\=507.30

Hence, Saul would have $507.30 more had he started saving 10 years earlier.

5 0
3 years ago
In the Pacific, Allied forces began to take Japanese territory by _[blank].
Tomtit [17]
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