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Sonja [21]
3 years ago
5

75% of 7th graders are returning to school. If there are 300 7th graders returning to school, how many total 7th graders are the

re?
Mathematics
1 answer:
bagirrra123 [75]3 years ago
4 0

Answer:

there are 350 in all of the 7th grade

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Simplify the expression.<br><br> [(11 - 4)^3]^2 ÷ (4 + 3)^5
MAXImum [283]

Answer:

<h2>7</h2>

Step-by-step explanation:

\left[\left(11\:-\:4\right)^3\right]^2\:\div \left(4\:+\:3\right)^5\\\\\frac{\left(\left(11-4\right)^3\right)^2}{\left(4+3\right)^5}\\\\\mathrm{Subtract\:the\:numbers:}\:11-4=7\\\\=\frac{\left(7^3\right)^2}{\left(4+3\right)^5}\\\\\mathrm{Add\:the\:numbers:}\:4+3=7\\\\=\frac{\left(7^3\right)^2}{7^5}\\\\\left(7^3\right)^2=7^6\\\\=\frac{7^6}{7^5}\\\\\mathrm{Apply\:exponent\:rule}:\quad \frac{x^a}{x^b}=x^{a-b}\\\\\frac{7^6}{7^5}=7^{6-5}\\\\\mathrm{Subtract\:the\:numbers:}\:6-5=1\\\\=7

5 0
3 years ago
Please need help<br> (s + 12) + (3s - 8)
umka21 [38]
<span><span><span>s+12</span>+<span>3s</span></span>−8</span><span>=
<span><span><span><span>s+12</span>+<span>3s</span></span>+</span>−8
</span></span>Combine Like Terms<span>
<span><span><span>s+12</span>+<span>3s</span></span>+<span>−8</span></span></span><span>=
<span><span>(<span>s+<span>3s</span></span>)</span>+<span>(<span>12+<span>−8</span></span>)</span></span></span><span>=
<span><span>4s</span>+<span>4</span></span></span>
6 0
3 years ago
Read 2 more answers
HELP ME !! AND EXPLAIN HOW YOU GOT IT.
ruslelena [56]

Answer:

<h2>D = 75°</h2><h2>E = 37°</h2><h2>F = 68 ° Given </h2>

Step-by-step explanation:

(13x - 3) + (6x + 1) + (68) = 180 \\ 19x + 66 = 180 \\ 19x = 180 - 66 \\ x =  \frac{114}{19}  \\ x = 6 \\  \\  \\ d = 13x  - 3 \\ d = 13(6)  - 3 \\ d = 75 \\  \\ e = 6x + 1 \\ e = 6(6) + 1 \\ e = 37 \\  \\ f = 68 \\  \\ check \:  \:  \: 75 + 37 + 68 = 180

I hope that is useful for you :)

3 0
2 years ago
Finally the value of the expression 20m²+30m+40 where m=4​
PolarNik [594]

Answer:

6,560

Step-by-step explanation:

yes

7 0
2 years ago
Which ordered pair is generated from the equation shown below? y = 2x + 4 A. (1, 6) B. (1, 2) C. (3, 6) D. (8, 16)
IRISSAK [1]

Answer:option A because

Put y=6 and x=1

6=2(1)+4

6=2+4

6=6

Step-by-step explanation:

7 0
3 years ago
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