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2 years ago

13

Need help quick! What is the sum of the following:

tle="15x (times) 20x" alt="15x (times) 20x" align="absmiddle" class="latex-formula">

1 answer:

Fantom [35]2 years ago

6 0

Answer:

300x

Step-by-step explanation:

alll you have to do is multipy 15 and 20 and you will get 300

after that just add the x to the end

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What is 5/8 / divided by 1/4?

Marina86 [1]

Answer:

5/2

Step-by-step explanation:

Use a calculator

8 0

2 years ago

600 or 600 decreased by 20% and then increased by 20% of the result? Which amount is larger and by how much

ohaa [14]

Answer:

The initial value of 600 is larger and larger by 24.

Step-by-step explanation:

First of all a 20% decreased of 600.

So, the new value will be $600(1 - \frac{20}{100}) = 600 \times 0.8 = 480$ .

Now, then it is increased by 20% i.e. 480 will be increased by 20%.

So, the new value will be $480(1 + \frac{20}{100}) = 480 \times 1.2 = 576$ .

Therefore, the initial value of 600 is larger and larger by (600 - 576) = 24. (Answer)

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2 years ago

What percent of 200 is 290

Crazy boy [7]

145%
200/200: 100%
90/200= 45%

3 0

2 years ago

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If y varies inversely as x and y is 2.5 when x is 6, what is y when x is 4? a. 3.75 b. 1.67 c. 0.1 d. 7.5 Please select the best

REY [17]

Because y varies inversely as x, therefore
$y= \frac{k}{x}$
where k = constant.

When x = 6, y = 2.5. Ther efore
$\frac{k}{6} = 2.5$
Cross multiply.
k = 6 x 2.5 = 15

The equation is
$y = \frac{15}{x}$

When x = 4, obtain
$y = \frac{15}{4}= 3.75$

Answer: a. 3.75

8 0

2 years ago

Read 2 more answers

4x+(7-3)5=10 please help with this one

Ostrovityanka [42]

Answer:

x=-2.5

Step-by-step explanation:

4x+(7-3)5=10

4x+(4)5=10

4x+20=10

subtract 20 from each side

4x=-10

divide each side by 4

x=-2.5

3 0

2 years ago

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