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3 years ago

Enter a fraction that makes the equation below true. 3/10 divided by what equals 2/5?

Mathematics

2 answers:

vazorg [7]3 years ago

8 0

Answer:

x=0.75

Step-by-step explanation:

Solve for x by cross multiplying.

Strike441 [17]3 years ago

3 0

Answer:

3/4

Step-by-step explanation:

Write out and solve the equation

3/10 2

-------------- = ------

x 5

Cross-multiplying, we get 15/10 = 2x, and so x must be 15/20, or 3/4

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Jeff uses 3 fifth- size strips to model 3/5. he wants to use tenth size strips to models an equivalent fraction. how many tenth

Anuta_ua [19.1K]

He will need 6 tenth size strips because if you put 3/5 vertically with another fraction beside of it that had the numerator blank and the bottom 10. You do this because Jeff uses fifth size strips so 5 represents the strips and you need tenth size strips so you find our numerator for the tenth size strips. You find out how many times 5 can go into 10 or 5 times what equals 10 and it's 2. So whatever you do to the bottom you do to the top. You times 5 by 2 at the bottom and get 10 for the tenth size strips and 3 times 2 at the top yoi get 6 and that is 6/10 is your answer

7 0

3 years ago

Read 2 more answers

If f(x)= 4x+3 and g(x)= 3x evalute f(x). g(x) for x=-1 over 2

padilas [110]

$\bf \begin{cases}
f(x)=4x+3\\
g(x)=3x\\
------------\\
f(x)\cdot g(x)=(4x+3)(3x)\\
\qquad \qquad \qquad 12x^2+9x
\end{cases}
\\\\\\
\boxed{x=-\cfrac{1}{2}}\qquad \qquad 12\left( -\frac{1}{2} \right)^2+9\left( -\frac{1}{2} \right)\implies 12\left( -\frac{1}{2} \right)\left( -\frac{1}{2} \right)+9\left( -\frac{1}{2} \right)
\\\\\\
12\left( \cfrac{1}{4} \right)-\cfrac{9}{2}\implies 3-\cfrac{9}{2}\implies \cfrac{6-9}{2}\implies \cfrac{-3}{2}\implies -1\frac{1}{2}$

6 0

3 years ago

Solve for x O 5.5 O 6.5 O 7.5 O 8.5

Leni [432]

Answer:

x= 120

Step-by-step explanation:

x+60=180

x=180-60

x=120

4 0

3 years ago

Jim built pens for his dogs. If he puts 1 dog in each pen, he will have 2 dogs left over. If he put 2 dogs in each pen, he will

Brut [27]

Jim has 4 dogs and 2 pens.

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3 years ago

Use the number line to show and explain why 4 over 10 divided by 2 and 1 over 2 times 4 over 10 both equal 2 over 10

siniylev [52]

Answer:

Please find the graph in the attached file.

Step-by-step explanation:

$\to \frac{\frac{4}{10}}{2} \ and \ \frac{1}{2} \times \frac{4}{10} =\frac{2}{10}\\\\\to \frac{0.4}{2} \ and \ 0.5 \times 0.4 =0.2\\\\\to 0.2 \ and \ 0.2 =0.2\\\\ \to \frac{2}{10} \ and \ \frac{2}{10} = \frac{2}{10}\\\\$

3 0

3 years ago