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2 years ago

Did I do this correctly?

Mathematics

1 answer:

quester [9]2 years ago

5 0

Answer:

yes

Step-by-step explanation:

you did it right

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Kath starts with a number. she adds 3 to her number then double the result. finally, she subtracts 7. if she ended with 9, what

Dimas [21]

The answer is 5. Work backwards: first add 7 to 9, then divide by 2, then subtract 3.

9+7=16
16/2=8
8-3=5

Cross Check:
5+3=8
8*2=16
16-7=9

Final Answer: 5

4 0

3 years ago

Please help out I can’t really love this

77julia77 [94]

<h3>Answer: Choice B) 45/56</h3>

========================================================

Explanation:

When we divide two fractions like this, we flip the second fraction and multiply like so...

$\frac{5}{7} \div \frac{8}{9}\\\\\frac{5}{7} \times \frac{9}{8}\\\\\frac{5 \times 9}{7 \times 8}\\\\\frac{45}{56}\\\\$

which points us to choice B as the answer.

The fraction 45/56 cannot be reduced further because 45 and 56 do not have any factors in common other than 1.

6 0

3 years ago

Read 2 more answers

Solve for x<br> solve for x<br> solve for x

Feliz [49]

Answer:

x = 64

Step-by-step explanation:

looking at the other sides, you find that each side had just been doubled.

4 0

3 years ago

Read 2 more answers

What is the factorization of the polynomial below? -x^2-15x-54

amid [387]

To factor a polynomial we need to find 2 numbers that add up to -15 and multiply into -54.
(-x -18)(x +3) Will be your answer.

8 0

3 years ago

Help please pleassse

ASHA 777 [7]

Answer:

$n=\frac{8}{3}$ or $n = 2\frac{2}{3}$

Step-by-step explanation:

Multiply both sides of the equation by $\frac{10}{3}$

$(\frac{10}{3}) (\frac{3}{10})*n= (\frac{10}{3})(\frac{4}{5})$

Simplify both sides of the equation.

$n=\frac{8}{3}$ or $n = 2\frac{2}{3}$

<em>hope this helps :)</em>

7 0

3 years ago