3 years ago

When dividing by a mixed number, which should you do first?

Mathematics

1 answer:

Serggg [28]3 years ago

6 0

Answer: Change each mixed number to an improper fraction.

Step-by-step explanation:

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Colin spends

Yuki888 [10]

Answer:

£24

Step-by-step explanation:

3/4 + 1/8 = 7/8 of his money spent

8/8 - 7/8 = 1/8 of his money left

1/8 times £192 = £24 left

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3 years ago

40% of a 12,000 acre forest is being logged how many acres will be logged

Korvikt [17]

12000 x 0.40 = 4800

12000 - 4800 = 7200

7200 acres are being logged

hope this helps

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3 years ago

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Which of these is an example of typing at an average rate of 42 words per minute?

Fudgin [204]

Answer:

I think that it is typing 16 words in 3/2 of a minute.

Step-by-step explanation:

16 times 3 = 48

Im sorry if you get this wrong, i tried my best.

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3 years ago

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The function f(x) = –x2 + 20x – 75 models the profit from one customer, in dollars, a shop makes for printing photos, where x is

trasher [3.6K]

The function is graphed as shown below

Part A:

We use the formula $- \frac{b}{2a}$ to find the vertex of the function. A quadratic function of the form of $a x^{2} +bx+c$ and equating this form to the given function $- x^{2} +20x-75$ , we have
$b=20$ and $a=-1$ .

Substituting $a$ and $b$ into the vertex formula, we have
$x=- \frac{20}{2(-1)}=10$ , as shown in the graph

This calculation means that the highest profit is achieved when the number of photo printed equals to ten photos

Part B:

We can find solution to this equation by factorising

$- x^{2} +20x-75=0$
$-( x^{2} -20x+75)=0$
$x^{2} -20x+75=0$
$(x-5)(x-15)=0$
$x=5$ and $x=15$ , as shown in the graph

The two values means that the company makes no profit when they either produce 5 or 15 photos

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4 years ago

Misty purchased a pair of jeans that were originally $24, but were on sale for 1/3 off the total price. How much did she save?

Alla [95]

1/3 of $24 = 8
she saved $8

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3 years ago

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