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Anastasy [175]
2 years ago
10

Solve the equation using mental math.

Mathematics
2 answers:
Umnica [9.8K]2 years ago
4 0

I guess answer should be C

ki77a [65]2 years ago
3 0
Answer is C. 3 start fraction 5 over 7 end fraction.
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Is 2/3 greater than 8/12
likoan [24]
2/3 is exactly the same as 8/12
5 0
3 years ago
Read 2 more answers
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
How do you solve 49.6 divided by 1.2
alex41 [277]
41.3 is your answer because when you divide 496 and 12 you get 41.3 and therefore 49.6 divided by 1.2 is 41.3 so they both calculate 1 decimal
7 0
3 years ago
Olga has $40 in her wallet. She has one more $5 bill than $10 bills, and two more $1 bills than $5 bills. If Olga has only three
Scrat [10]

Answer:

Number of $10 bills = 2

Number of $5 bills = 3

Number of $1 bills  = 5

Step-by-step explanation:

Given:

Total amount = $40

Number of $10 bills = x

Number of $5 bills = x + 1

Number of $1 bills = x + 1 + 2 = x + 3

Find:

Number of each bills

Computation:

10(x) + 5(x+1) + 1(x+3) = 40

10x + 5x + 5 + x + 3 = 40

16x = 32

x = 2

Number of $10 bills = x = 2

Number of $5 bills = x + 1 = 3

Number of $1 bills  = x + 3 = 5

5 0
3 years ago
Simplify: 8t + 6r - 3t + 2r<br> A. 9rt<br> B. 13rt<br> C. 5t + 4r<br> D. 5t + 8r
mr_godi [17]
Let's simplify step-by-step.<span><span><span><span>
8t</span>+<span>6r</span></span>−<span>3t</span></span>+<span>2r</span>
=<span><span><span><span><span>8t</span>+<span>6r</span></span>+</span>−<span>3t</span></span>+<span>2r

</span></span></span>Combine Like Terms:
<span>=<span><span><span><span>8t</span>+<span>6r</span></span>+<span>−<span>3t</span></span></span>+<span>2r</span></span></span><span>=<span><span>(<span><span>6r</span>+<span>2r</span></span>)</span>+<span>(<span><span>8t</span>+<span>−<span>3t</span></span></span>)</span></span></span><span>=<span><span>8r</span>+<span>5t

</span></span></span>Answer:<span>
=
<span>8r+5t
(Or, in your case: D. 5t + 8r)

</span></span>____________________________

<span>Simplify: 8t + 6r - 3t + 2r
A. 9rt
B. 13rt
C. 5t + 4r
D. 5t + 8r </span>



6 0
3 years ago
Read 2 more answers
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