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3 years ago

7

What is the percent change from 57 to 12

1 answer:

AnnZ [28]3 years ago

4 0

Answer:

= 130.435% difference

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On Friday 80% of the costumers who bought tickets at a movie theater also bought popcorn. There were 320 costumers who bought ti

Nimfa-mama [501]

Answer:

256

Step-by-step explanation:

I judt know I don't know hoet to explain sorry hope it helps

8 0

2 years ago

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Solve the inequality

worty [1.4K]

Treat it just like and equation at first. Multiply the 10 on both sides to get rid of it, leaving you with 50 $\leq$ x. Then on the number line, since there is a line under it, you would make a filled in circle and an arrow pointing towards 51 and beyond

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3 years ago

1.. A train travels at a speed of 58 km/hr. If it goes from one station to the next in 1.6 hours, how far has it traveled?

wel

Answer:

92.8 km

Step-by-step explanation:

s=d/t

58=d/1.6

58*1.6=d

92.8=d

7 0

3 years ago

Which is equal to cos47°?

Murrr4er [49]

Which of these is equal to cos 47°?

a. cos 43°

b. sin 43°

c. tan 43°

d. cos 133°

B.....

cos (47°)= sin (90°-47°)=sin (43°) [complementary angles]

Answer B

7 0

3 years ago

2r2 + 3s3 − r2 + 4t2 − r2 if r = −2, s = −3, and t = 5.

Elza [17]

First, simplify the expression $2r^2 + 3s^3 - r^2 + 4t^2 - r^2.$ Here you have three terms with $r^2,$ group them in the following way:

$2r^2 + 3s^3 - r^2 + 4t^2 - r^2=2r^2-r^2-r^2+3s^3+4t^2=(2r^2-r^2-r^2)+3s^3+4t^2=$

$=r^2(2-1-1)+3s^3+4t^2=3s^3+4t^2.$

Then substitute s=-3 and t=5:

$3s^3+4t^2=3\cdot (-3)^3+4\cdot 5^2=3\cdot (-27)+4\cdot 25=-81+100=19.$

Answer: 19.

3 0

3 years ago

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