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2 years ago

HAiiiiiiii help T-T... it will be helpful

Mathematics

1 answer:

sweet-ann [11.9K]2 years ago

3 0

Answer:

The popsicle stick is 11 and 6/10 inches and 4.9 centimeters.

The pencil is 7 and 3/10 inches and 2.14 centimeters.

The paperclip is 6 and 3/10 inches and 2.8 centimeters.

Step-by-step explanation:

Just look at where the red dotted lines are

hope this helps

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Keiko has seven colors of lanyard. She uses three different colors to make a keychain. How many different combinations can she c

AleksAgata [21]

Combination = doesn't matter what order
Permutation = order matters

There are two methods to work out combinations.

Method 1 List out possibilities
123 124 125 126 127 134 135 136 137 145 146 147 156 157 167
234 235 236 237 245 246 247 256 257 267
345 346 347 356 357 367
456 457 467
567

For a total of 35 combinations.

Method 2 Use a formula.
It's a rather complicated one, so only use it if you have a lot of possibilities.

$\frac{n!}{r!(n-r)!} = \frac{7!}{3!(7-3)!} = \frac{7!}{3!*4!} = \frac{7*6*5*4*3*2*1}{3*2*1*4*3*2*1} = \frac{7*6*5}{3*2*1}=\frac{210}6=35$

(n is the number of choices, r is the amount you choose, and ! is a function that multiplies together all numbers down to 1)

7 0

3 years ago

An albatross can fly 400 kilometers in 8 hours at a constant speed using d as distance and t as number of hours. An equation tha

kow [346]

Answer:

Constant of Proportionality is 50.

Step-by-step explanation:

Albatross can fly 400 kilometers in 8 hours.

'd' represents the distance and 't' represents the number of hours.

The equation $d=50t$ represents the relationship between the distance and time.

Now, in the equation shown above 50 is the constant of proportionality, and 50 represents the rate of change of distance with time.

The constant of proportionality tells us the rate of change between two variables.

So for every 1 hour of time the distance covered is 50 kilometers.

4 0

3 years ago

What is the factored form of 8(x + 1/2) and 10(x + 2/5)?

Kitty [74]

Answer:

8x+4 and 10x+4

Step-by-step explanation:

Using the distributive property, you times 8 by x and then 8 by one half: 8x & 8*1/2. 8x+4

You then do the same for 10(x+2/5): 10x and then 10 divided by 5 and times by 2. This leaves you with 10x+4.

I hope this helped. :)

6 0

3 years ago

I just need help !! Points and brainlest !!

adoni [48]

Answer:

0.33

Step-by-step explanation:

108/330=0.33

5 0

3 years ago

How many solutions the system has

velikii [3]

Answer:

one solution

Step-by-step explanation:

the variables doesn't repeat and the numbers aren't the same

3 0

3 years ago