Ask question

Ask question

All categories

Nookie1986 [14]

2 years ago

5

Katie memorized 40 multiplication facts last week. This week she memorized 56 multiplication facts. What is her percent of incre

ase for memorizing multiplication facts this week? o 22.4 % O 71.4 % O 40% O 140%

1 answer:

Oksi-84 [34.3K]2 years ago

4 0

Answer:

40%

Step-by-step explanation:

:)

You might be interested in

Estimate the measure of the clockwise angle formed by the minute hand and the second hand, then classify the angle. A. 54°; acut

Harlamova29_29 [7]

I would go with b or a or d but not c

8 0

3 years ago

Read 2 more answers

Combine like terms 7a - a+ 16 = ?

dexar [7]

6a+16

Explanation:
If there's just a variable, there's an understood 1 in front of it. So what that really says is:

7a-1a+16

So, you combine the a's. 7a minus 1a is 6a. Same as 7-1,but you have a variable stuck on the end of it.

6a+16

:^)

4 0

3 years ago

Read 2 more answers

A bank PIN is a string of four digits, each digit 0-9. (a) How many choices are there for a PIN if the last digit must be odd? M

Amanda [17]

Answer:

a) 5,000 b) 3,600

Step-by-step explanation:

a) there are four different slots, and for the first three slots there are a possibility for 10 different numbers and in the last slot there can only be 5 different numbers. So you get 10 x 10 x 10 x 5 which leaves you with 5,000 possibilities

b) the same thing as above but know you have fewer numbers 10 x 9 x 8 x5 which gives you 3,600 possibilities

7 0

3 years ago

The sum of three numbers is 104. The first number is 10 less than the second. The third number is 4 times the second. What are t

Shalnov [3]

Answer:

The numbers are 9, 19 and 76.

Step-by-step explanation:

Let's take the second number and make it a variable, like x. Now let's find all the other numbers in terms of x.

The first number in terms of x:

$x - 10$

The second number in terms of x:

$4x$

If we add them all up, these 3 numbers in terms of x must be equal to 104, so:

$x + (x - 10) + (4x) = 104 \\ x + x - 10 + 4x = 104 \\ 6x - 10 = 104 \\ 6x = 114 \\ x = 19$

Now that we know the second number, we can find the other numbers since we already figured out their values in terms of x:

$19 - 10 = 9$

$4 \times 19 = 76$

The first number is 9, second number 19 and the third number 76.

6 0

3 years ago

Number lines for 43.586 to the nearest tenths, hundredths , ones

kvasek [131]

Tenths 43.5
hundredths 43.60
ones 44

4 0

3 years ago