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9966 [12]
3 years ago
15

The product is sin 30 and sin 60 is some as the product of and

Mathematics
1 answer:
patriot [66]3 years ago
6 0
Cosine of 60 and Cosine of 30
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The fifth grade teachers took their classes on a field trip to museum first group had 25 students and two teachers and cost $97.
iren [92.7K]

Answer:


Step-by-step explanation:

S=student cost; T=teacher cost

.

32S+3T=$127 . Multiply this by 2.

64S+6T=$254 Subtract this below

.

25S+2T=$97.50 . Multiply this by 3.

75S+6T=$292.50

64S+6T=$254 . Subtract this (from above.)

.

11S=$38.50

S=$3.50

ANSWER 1: Student tickets cost $3.50.


.

32S+3T=$127

32($3.50)+3T=$127

$112+3T=$127

3T=$15

T=$5.00

ANSWER 2: Teacher tickets cost $5.00.

.

CHECK:

25S+2T=$97.50

25($3.50)+2($5.00)=$97.50

$87.50+$10.00=$97.50

$97.50=$97.50


4 0
3 years ago
(-7)(-5)= __ a0<br>solve the equation​
tatuchka [14]

Answer:

-7 x -5 = 35

Step-by-step explanation:

When you multiply two numbers with the same sign they will always equal positive.

Hope this helped :)

4 0
3 years ago
Evealute the expression when m= -2 m^2+9m+3
Volgvan

Step-by-step explanation:

m=-2

m^2+9m+3

substitute-2 in m

-2^2+9(-2)+3

= -19

8 0
2 years ago
What number is being factored in this factor tree? <br><br>A.72<br> B.180 <br>C.216<br> D.324
Tatiana [17]

Answer:

not sure if it's ryt but I think it's A

7 0
3 years ago
Identify one unique decimal that you encounter regularly during the week and how it affects you or not in your daily life. your
Tpy6a [65]
A unique decimal that I encounter regularly is "0.05". I encounter this almost every day, when I go to the store to buy something, the saleslady gives me $0.05 as change. When I go home and put some of my extra money in my piggy bank, I hold a $0.05 in my hand. 
5 0
2 years ago
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