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3 years ago

What is correct answer to -5-(-8)=

Mathematics

2 answers:

tino4ka555 [31]3 years ago

8 0

Answer:

Step-by-step explanation:

Cerrena [4.2K]3 years ago

7 0

Answer:

$3$

Step-by-step explanation:

To solve this, we first use the rule:

$- ( - x) = x$

as two negatives equal a positive.

Hence

$- 5 - ( - 8) = - 5 + 8$

which you get an answer of

$3$

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The ratio of Ali's mass to John's mass is 6:5. The ratio of John's muss

djverab [1.8K]

Step-by-step explanation:

The ratio of Ali mass to Williams mass is

6 : 3

= 2 : 1

Option 2 is the correct answer

5 0

3 years ago

Which angles are vertical angles?

AVprozaik [17]

Answer:

∠GFC and EFH

Hope this helps!

7 0

3 years ago

Help help Order these fractions from least to greatest.

Dmitrij [34]

Answer:

$\frac{5}{9}, \frac{7}{9}, \frac{8}{9}$

Step-by-step explanation:

The answer is: $\frac{5}{9}, \frac{7}{9}, \frac{8}{9}$

And this question isn't to difficult, and the trick is realizing they all have the same denominator.

The denominator is essentially saying how many pieces of the whole (1) is being broken into.

So the denominator 9, means that you're breaking up the number 1 into 9 pieces.

The numerator is telling us how many pieces of this "broken up 1" the number has.

So 8/9 has more of these "broken up pieces" than 7/9, and it's so vitally important that these numbers have the same denominator.

For example: 1/2 and 30/90

30/90 may appear to be bigger, since the numerator of 30, but it's actually smaller.

The reason for this is because we can simplify it to: 1/3 by dividing both sides by 30 so the value remains the same.

Now we can actually compare 1/2 and 1/3 without changing the denominators.

1/3 is "one piece" of a broken up one, that was "broken" into 3 pieces.

1/2 is "one piece" of a broken up one, that was "broken" into 2 pieces.

So if I split one whole, into three pieces, each individual piece is going to be smaller than had I split that one whole into 2 pieces.

So 1/2 is actually bigger than 1/3

8 0

1 year ago

Joanie decides to buy matching sweaters for herself and her 3 sisters. The regular price of the sweaters is $37. Joanie says if

Roman55 [17]

Answer:

Yes, it is possible if the sweaters on sale are $7.40 each.

Step-by-step explanation:

The sweaters each cost $37. To purchase all four (for herself and 3 sisters) without a sale would be 4(37)= $148.

40% off the regular price would be 0.40(148)= $59.20 savings. She would spend 148-59.2= $88.80.

Is it possible to buy two regular price sweaters and two on sale for $88.80?

2(37)=$74. If we subtract from the sales total, 88.80-74=14.80. This means the two sweaters on sale must each be $7.40. It is possible to save 40%.

8 0

4 years ago

The monthly profit for a small company that makes long-sleeve T-shirts depends on the price per shirt. If the price is too high,

Andrej [43]

Answer:

A. $18

B. $200

C. $p\in (16,20)$

Step-by-step explanation:

Function:

$f(p) = -50p^2 + 1,800p - 16,000$

Parts A and B:

The price that generates the maximum profit is ate vertex of parabola. Find the coordinates of the vertex:

$p_v=\dfrac{-b}{2a}=\dfrac{-1,800}{2\cdot (-50)}=\dfrac{1,800}{100}=18\\ \\f(p_v)=-50\cdot 18^2+1,800\cdot 18-16,000=200$

The price that generates the maximum profit is $18

The maximum profit is $200

Part C:

The company breaks even when the profit is positive. From the graph of the function you can see that the graph of the function is over p-axis for all $p\in (16,20)$ , so the positive profit is for $p\in (16,20)$

In p=16 and p=20, the profit is 0 and when p<16 and p>20, there will be a loss.

7 0

4 years ago