MATHEMATICS MIDDLE SCHOOL

Gary is 3 centimeters long and can jump 10 times farther than his length. How many jumps can Gary jump to get to 9 meters?

Answers

Answer 1

Answer:

Answer:

300 times

Step-by-step explanation:

900/3=300

i have a big brain

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What is the value of 8P4? a.40,320 b.1680 c.32 d. 24

Answers

Answer:

1680

Step-by-step explanation:

We are find the permutations of 8 permute 4

8!/(8-4)!= where ! means factorial

8!/ 4!

8*7*6*5*4*3*2*1

-------------------------

4*3*2*1

Canceling the 4,3,2,1

We are left with

8*7*6*5

---------------

1680

Angle a and angle b are complementary angles. The measure of ∠a is 42°. Which equation represents this situation with x representing the measure of ∠b ?

Answers

We know, sum of complementary angles are 90 degrees
So, a + b = 90 [ Equation ]

For solving: Just substitute the value of a = 42
42 + b = 90
b = 90 - 42
b = 48

Hope this helps!

Answer:

the answer would be 90 + 42 + = x

Step-by-step explanation:

mr carlos buys 1,080 apples. 1/9 of the apples are rotten. he sells the rest at $2 for 10 apples. how much does he earn from the sale

Answers

$(1)/(9)\cdot 1080=120\n1080-120=960\n960:10=96\n96 \cdot \$2=\$192\n\nAnswer:Mr\ Carlos\ will\ earn\ \$192\ for\ the\ sale.$

Answer:

$192

Step-by-step explanation:

Mr. Carlos sells 1080 * 8/9 = 960 apples

960 apples * $2/10 apples = $192

Sasha drove from her house to the grocery store in 20 minutes. Her return trip took 15 minutes. If the store is 7 miles from her house, what was Sasha's average speed for the round trip, in miles per hour?

Answers

Total time = 35 minutes
Total distance = 14 miles

I would set this up as a proportion

14/35 = x/60 (60 minutes in an hour)
Now cross multiply and solve.
35x = 840
840/35 = 24 mph

distance = rate * time
7 miles = rate * 20 minutes
7/20 = 20r/20
r = 0.35 mph

1/6,1/9,2/27,4/81 geometric sequence next value?

Answers

If you would like to know the next value, you can calculate this using the following steps:

1/6, 1/9, 2/27, 4/81, x = ?

1/9 / 1/6 = 1/9 * 6 = 6/9 = 2/3

So, if we would like to know what is the next value of this geometric sequence, you have to multiply 4/81 by 2/3:
4/81 * 2/3 = 8/243

The correct result would be 8/243.

The common ratio for this geometric sequence is 2/3. Every value is 2/3 the previous value.
So, to get the next value, we must multiply 4/81 * 2/3 = 8/243.

Adena has a number cube labeled 1 through 6. She rolls the number cube 3 times. What is the probability that she will roll a 2, then 3, and then a 4?

(has to be a fraction)

I think it is 1/216

Answers

1 1/2 You have to add 2/6 + 3/6 +4/6= 9/6= 1 1/2

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