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stepladder [879]
3 years ago
15

Which of these equations are true when the value of y is 27?

Mathematics
1 answer:
Troyanec [42]3 years ago
7 0

Answer:

I. -9 + y = 18

Step-by-step explanation:

Double-check to see if I was correct

You might be interested in
300-297+294-291+288-285+...+6-3
vladimir2022 [97]
300 - 297 = 3

294 - 291 = 3

288 - 285 = 3

So, that is a sequence of sums of number 3: 3 + 3 + 3 + .... + 3

How may times will the number 3 be added?

Note that 300 is reduced in 6 units each time => 300 / 6 = 50 => 3 will be added 50 times.

=> 50 * 3 = 150

Answer: 150
7 0
3 years ago
Perform the indicated operation. Be sure the answer is reduced.
Morgarella [4.7K]
The answer is: k^{2} /2

 The explanation is shown below:
 1. You have the following expression given in the exercise above:
 ( 4k^{2}) /(2k+3)(2 k^{2} -5k-12)/(8k-32)

 2. By applying the distributive property, you obtain:
 (8k^{4}-20k^{3}-48k)/(16k^{2} -40k-96)
 3. Now, you must factor k^{2} in the numerator and 2
 in the denominator:
 k^{2}(8 k^{2} -20k-48)/2(8 k^{2} -20k-48) 
 4. Simplify:
 k^{2} /2
8 0
3 years ago
A number is four times larger than the square of half the number ​
Mashcka [7]

Answer:

Step-by-step explanation:

Let the number = x

Read carefully the sentence part beginning with 4 times larger

4* something

4 times larger than the square of 1/2 the number

4 * (x/2)^2

4*(x/2)^2 = x

4*x^2/4 = x

x^2 = x  be very careful how you handle this. It looks like 0 might be an answer, but it isn't. If you divide x on both sides and you allow 0, you will get 0 / 0 and that is undefined. You must exclude that possibility with some sort of statement.

x cannot be 0.

x^2/x= x/x

x = 1

5 0
3 years ago
Mofor’s school is selling tickets to the annual talent show. On the first day of ticket sales the school sold 4 senior citizen t
kari74 [83]

Answer:

Senior citizen tickets = 9

Student tickets = 10

Step-by-step explanation:

We begin by converting the question into simultaneous linear equations;

Senior citizen tickets = a

Student tickets = b

4a + 6b = 96

8a + 13b = 202

to find a,

if 4a +6b = 96

a = 96/4 - 6b/4

a = 24 - 1.5b

We now substitute this into the second equation

8(24 - 1.5b) + 13b = 202

192 - 12b + 13b = 202

b = 202 - 192

b = 10

We now put the value of b in either equation

4a + 6b = 96

4a + 6(10) = 96

4a + 60 = 96

4a = 96 - 60

4a = 36

a = 9

7 0
3 years ago
Find the total area (in terms of K) of the prism. Place "K" last in your formula. T.A. =
olga nikolaevna [1]
Assuming that the base of the prism is a regular pentagon, the area of a regular polygon is given by the formula A = 0.5pa; where p is the perimeter and a is the apothem. An apothem is a line that connects the center of the polygon to the midpoint of a side and is also perpendicular to the said side. For this example, the assumed apothem here is k.

Area of base = 2 (0.5 x 20" x k) = 20k

The sides of the prism are rectangles, with width 6" and length (20"/5) = 4".
Area of sides of prism = 5 (6" x 4") = 120

Total Area T.A. = 120 + 20k
6 0
3 years ago
Read 2 more answers
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