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Nata [24]
3 years ago
14

Can someone pls help fast

Mathematics
2 answers:
larisa86 [58]3 years ago
8 0

Answer:

i am so sorry but  i think the answer is 56

TiliK225 [7]3 years ago
5 0

Answer:

We have the constraint 12x + 8y = 1800 to solve

x and y both have to be positive (she can't work negative hours)

If we choose x = 100 then we have 1200 + 8y = 1800

8y = 1800 - 1200 = 600

y = 75

We know this works because 12 * 100 + 75 * 8 = 1800 which is what she needs.

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Which of the following is the radical expression 5/a to the 7th power
Leto [7]

When an exponent is a fraction, the denominator is written as a root, while the numerator is the power:

Since a is to the power of 5/7, the 7 becomes the 7th root, and the 5 becomes a^5. This is:

7th root of (a^5), or(B).

3 0
3 years ago
A bag contains both black and red marbles. The ratio of black to red marbles is 3:4.
sesenic [268]

The total number of marbles in the bag is 7, since 3+4=7. There are 3:4 black marbles, so 3/7 of the bag is black marbles, which can be written as 3:7.

4/7 of the bag is red marbles, which can be written as 4:7

8 0
3 years ago
What is the best approximation for the perimeter of a semicircle with a diameter of 64 meters?
OverLord2011 [107]
<span> By definition, the perimeter of a semicircle is given by:
</span> P = ( \pi ) * (r) + d 
<span> Where,
 d: diameter of the semicircle
 r: radius of the semicircle.
 The radius of the semicircle is given by:
</span> r = d / 2 &#10;
<span> Where,
 d: diameter of the semicircle
 Substituting values:
</span> r = 64/2 &#10;&#10;r = 32 m<span> 
 Then, the perimeter is:
</span> P = (3.14) * (32) + 64 &#10;&#10;P = &#10;  164.48 m<span>
 Answer:
 The perimeter of the semicurcle is given by:
 P = </span><span> <span>164.48</span></span> m
7 0
3 years ago
Read 2 more answers
PLS HELP ME!
a_sh-v [17]

Answer:

\frac{5}{20} OR \frac{1}{4}

Step-by-step explanation:

Simply put, the total amount of fruits in the basket is 20. Since there are only 5 apples, this makes you only have a 5/20 chance of picking an apple. If you simplify that ratio, you get 1/4.

Good Luck!!!!

8 0
3 years ago
Read 2 more answers
Forty percent of the home owners applying for a home equity loan are approved by lenders. If in a given day 20 applications are
sergiy2304 [10]

Answer:

Binomial probability distribution.

0.1171

Step-by-step explanation:

p = 40% = 0.4 ; q = 1-p = 1 - 0.4 = 0.6

n = 20 ; x = 10

P(x = x) = nCr * p^x * q^(n-r)

P(x = 10) = 20C10 * 0.4^10 * 0.6^10

P(x = 10) = 184756 * 0.0001048576 * 0.0060466176

P(x = 10) = 0.11714155

P(x = 10) = 0.1171

4 0
3 years ago
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