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djverab [1.8K]
3 years ago
7

Solve 3 3/4 divided by 2/5 a.9 1/4 b.3 5/9 c.9 3/8 d.3 6/20

Mathematics
2 answers:
Contact [7]3 years ago
6 0

Step-by-step explanation:

3 \frac{3}{4} ÷ \frac{2}{5}       Original problem

When dividing fractions, you want to turn the mixed numbers into improper fractions so....

\frac{15}{4} ÷ \frac{2}{5}      

Now you want to flip the second fraction ( so \frac{2}{5} becomes \frac{5}{2} ) and then you want to turn the division sign into a multiplication sign

\frac{15}{4} × \frac{5}{2}          

Now you multiply the numerators and multiply the denominators

\frac{15*5}{2*4} = \frac{75}{8}

Turn the improper fraction to a mixed number

75 divided by 8 is 9 with a remainder of 3 so your answer would be c. 9\frac{3}{8}

The answer is c

I hope this helps!!!

cupoosta [38]3 years ago
3 0
The answer would be C. 9 3/8

Hope this helps

Have a great day

(If you want me to explain just ask)
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Simplify completely 5x3+10x2+15x/5x
vlabodo [156]

Answer:

x²+2x+3....

Step-by-step explanation:

The given expression is:

5x3+10x2+15x/5x

To simplify this expression take out the common of the numerator:

5x is common in all three terms of the numerator:

Like,

5x(x²+2x+3)/5x

Now the value of the common and the denominator is same. Therefore 5x will be cancel out by 5x

Then the remaining term is:

= x²+2x+3

Thus the answer is  x²+2x+3....

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I think the answer is $129
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josie enjoys making strawberry milkshakes. if it takes 5 strawberries yo make one milkshake how many does she need to make 20
Vinil7 [7]

Answer:

100 strawberries

Step-by-step explanation:

multipy 5 by 20 and you'll get 100

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What is the discriminant D of the equation? 3g² + 15g + 10 = 0
kiruha [24]
<span>the discriminant D of the equation 3g² + 15g + 10 = 0
for a quadratic equation   ax²+bx+c=0
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What is the standard deviation of the data? 0.5 1.5 2.0 2.5
vesna_86 [32]

Answer:

0.74

Step-by-step explanation:

The standard deviation of a data set is the sqaure root of the variance, so first we must find the variance. The equation for variance is:

σ² = \frac{{(x_{1}-[x bar] )}^{2}+...+{(x_{n}-[x bar]) }^{2}}{n}

x = number in the data set
xbar = median of the data set
n = number of terms

Plugging in the given values, the equation for the variance of this number set is:

σ² = \frac{(0.5 - 1.625)^{2}  + (1.5 - 1.625)^{2}+ (2.0 - 1.625)^{2}+(2.5 - 1.625)^{2} }{4}

Solving:

= \frac{1.265625+0.015625+0.140625+0.765625}{4}

= \frac{2.1875}{4}

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Since the standard devianation is the sqaure root of the variance, we'll sqaure 0.546875:

\sqrt{0.546875}

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