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Nezavi [6.7K]
4 years ago
7

A number is greater than or equal to -4

Mathematics
2 answers:
meriva4 years ago
7 0

Answer:

n\geq-4

katen-ka-za [31]4 years ago
6 0

Answer: x ≥ -4

Step-by-step explanation:

Since an unknown number is greater than or equal to -4, it would be written as x ≥ -4. Some numbers greater than or equal to -4 include -4, -3, -2, -1, 0, and 1.

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What is the unit rate of 420$ for 12 tickets
AlladinOne [14]

$35 per ticket

the unit rate means the cost of 1 ticket

divide $420 by 12 for unit rate

\frac{420}{12} = $35 per ticket



5 0
3 years ago
In the Brady's Family, each girl has twice as many brothers as she has sisters.
levacccp [35]

Answer:

3 girls and 4 boys

Step-by-step explanation:

Writing the number of girls in the family as g and the number of boys in the family as b,

we know that each girl has twice as many brothers as sisters. Therefore, the amount of boys in the family (b, or how many brothers each girl has) is twice the number of the amount of girls in the family (g) minus 1 (g-1) (subtract 1 because each girl's number of sisters does not include the girl herself). We can write this as

b = 2(g-1)

Next,

we know that each boy has the same amount of brothers as sisters. Therefore, the amount of boys in the family minus 1 (b-1, subtracting 1 because we don't include the boy that has the brothers) is equal to the amount of girls in the family (g). we can write this as

b-1 = g

Therefore, we have

b = 2(g-1)

b-1 = g

Plugging b-1 = g into the first equation, we get

b = 2 (g-1)

2(g-1) = 2((b-1) - 1) = b

= 2(b-1-1)

= 2(b-2)

= 2b-4

b = 2b-4

subtract 2b from both sides to make it so that only b values and their coefficients are on one side

-b = -4

multiply both sides by -1 to solve for b

b=4

Therefore, there are 4 boys in the family and b-1 = 4-1 = 3 girls in the family.

3 0
3 years ago
Gwendolyn has already read 130 pages of her 400-page summer reading book. If she reads at an average rate of 45 pages per hour,
tester [92]
H=270/45

To find how many hours it takes to read the rest of the book, you have to divided the remainder of pages (270) by how many pages are read in a hour (45)
6 0
3 years ago
Read 2 more answers
9- 2 3/4 please hurry
nignag [31]

Answer:

6 1/4

Step-by-step explanation:

6 0
3 years ago
PLEASE HELP ME ANSWER THIS<br> What is cos 60?
Anna71 [15]

Answer:

The angle with measure 60° is one of those angles that has a well-known cosine value: cos(60°) its C= 1/2.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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