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trasher [3.6K]
3 years ago
10

If a is a negative rational number and b is a positive rational number, which of the following must be true?

Mathematics
1 answer:
erastovalidia [21]3 years ago
4 0
Answer choice B is positive. Subtracting a negative number is a double negative, or a positive. An example of this is 5-(-3)=5+3=8. Choice A is wrong, because -3-5=-8, and subtracting any positive number from a negative number will wield a negative number. Choice C is wrong because 5+(-3)=5-3=2, which is not always negative as seen here (although if the absolute value of -a is greater than b, it WILL be negative). Hope this helped!
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Joanna is making a recipe that uses 1 1/2 teaspoon of salt for every 2 cups of sugar. If Joanna increases the recipe to use 5 of
GrogVix [38]

Answer: B. 3 3/4

Step-by-step explanation:

From the question, we are told that Joanna is making a recipe that uses 1 1/2 teaspoon of salt for every 2 cups of sugar. Since, uses 1 1/2 teaspoon of salt for every 2 cups of sugar, 1 cup of sugar will use 1/2 of 1 1/2 teaspoon of salt. This will be:

= 1/2 × 1 1/2

= 1/2 × 3/2

= 3/4 teaspoon of salt.

We then multiply the value used for a cup of sugar by 5 since Joanna increases the recipe to use 5 cups of sugar. This will be:

= 3/4 × 5

= 15/4

= 3 3/4

8 0
3 years ago
The red dot is about half way between 12 and 13
stepladder [879]

Answer:

It is given that red dot is about halfway between 12 and 13.

Draw a number line.Mark points on it on  as 1,2,3,.....12,13,...20.

Label 12 as point M and label 13 as N.

Mid point of MN=\frac{12+13}{2}

                         =25/2

                        =12.5

Mark 12.5 as T.

MT =NT

The Red dot is at point N at a distance of 12.5 units from the origin.



3 0
3 years ago
Today, both the soccer team and the basket ball team had games (starting on Monday). The soccer team plays every 3 days and the
yarga [219]
I think eight because if you add those days together they will play again in eight days so that they play on the same day.

Sorry if I got it wrong I tried and that's what counts, right?
3 0
3 years ago
Line r is parallel to line t. find m<6. The diagram is not to scale
Travka [436]
M <3 + 138 =190
so m<3 = 180 -138 = 42
r ans t are parallel so m<3 = m<6 then m<6 = 42

answer <span>C.42</span>
7 0
4 years ago
Are there always the same number of prime numbers between 2 consecutive multiples of 10? Why?
galina1969 [7]

Answer:

Yes it is 5

Step-by-step explanation:

It is 5 because you divide 2 and 10 and it is 5

4 0
4 years ago
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