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3 years ago

Find the percent of decrease. 1800 to 1200

1 answer:

3 0

$\frac{1800-1200}{1800} \cdot 100\%= \frac{600}{1800} \cdot 100\%= \frac{1}{3} \cdot 100\%=33 \frac{1}{3} \%\approx33.3\%$

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39y = 234

lbvjy [14]

Answer:

Divide by 39 on both sides

Step-by-step explanation:

y = 6

5 0

3 years ago

Read 2 more answers

Mrs. Morton has a special reward system for her class. When all her students behave well, she rewards them by putting 3 marbles

Olin [163]

Answer: $24+3r\geq100$

r=26

Step-by-step explanation:

Given: Mrs. Morton rewards her students on behave well by putting 3 marbles into a marble jar.

If the jar contains 24 marbles. and r represent the number of additional times the class is rewarded then the required equation will be

$24+3r\geq100$

If we solve it, we will get the minimum the jar contains 24 marbles.

To solve equation, subtract 24 from both sides, we get

$3r\geq100-24\\\Rightarrow3r\geq76\\\Rightarrow\ r\geq\frac{76}{3}\geq25.333\approx 26$

Hence, the minimum whole number of additional times they need to be rewarded so they can have a party=26

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4 years ago

Read 2 more answers

The low temperature last month was<br> -5˚F. What is the absolute value of -5?

solong [7]

5

The reason is because |-5| is equal to 5. The absolute value bars make the number positive.

4 0

3 years ago

Hi how was your day so far

Nana76 [90]

Answer:

Goof how, about you?

Step-by-step explanation:

Because you asked

8 0

3 years ago

How many sets of 7 questions can be chosen from a file of 25 questions?

likoan [24]

If all 25 questions are different,

When order of selection counts:
P(25,7)
=25!/(25-7)!
=15511210043330985984000000/6402373705728000
=2422728000

When order of selection does not count count:
C(25,7)
=25!/(7!*(25-7)!)
=15511210043330985984000000/(6402373705728000*5040)
=480700

3 0

3 years ago