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max2010maxim [7]
3 years ago
13

A bag contains:

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
6 0

Answer:

3/50

Step-by-step explanation:

There are 5 + 4 + 2 + 6 + 3 = 20 marbles in the bag

P(draw a black) = 6/20 = 3/10

If the black marble is replaced, then there are 20 marbles in the bag again.

P(draw a blue) = 4/20 = 1/5

P(draw a black and blue with replacement) = (3/10)(1/5) = 3/50

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How would you show the child’s reasoning using base ten blocks?
Phoenix [80]

Answer:

draw two blocks on top of each other being added together

Step-by-step explanation:

draw two blocks being added together...

8 0
3 years ago
Solve for a.<br><br> a+(−1.2)=−5.5<br><br> Enter your answer in the box.
Amanda [17]

Answer:

a = -4.3

Step-by-step explanation:

a+(−1.2)=−5.5

a - 1.2 = - 5.5

a = - 5.5 + 1.2

a = - 4.3

7 0
3 years ago
Which statement is true?
Len [333]

Answer:

C. 5x and x are like terms.

Step-by-step explanation:

Like terms have the same degree of the variable

5x and x are like terms because both have x to the power 1

6 0
3 years ago
Read 2 more answers
What is 6 divide by 2 times 3 times 100 multiply by 700 and divide by 1.37 and multiply by 0.778 and then add 0.778913 times 100
3241004551 [841]

Answer:

~460032.8

Step-by-step explanation:

Essentially, when this is written out, we get:

6 ÷ 2 × 3 × 100 × 700 ÷ 1.37 × 0.778 + 0.778913 × 100 × 10 × 1.77 × 444444.47 ÷ 7777777.0999 + 100

Order of operations says to do multiplication and division first, so let's calculate 6 ÷ 2 × 3 × 100 × 700 ÷ 1.37 × 0.778 separately:

6 ÷ 2 = 3

3 × 3 = 9

9 × 100 = 900

900 × 700 = 630000

630000 ÷ 1.37 = 459854

459854 × 0.778 = 357766

Now calculate 0.778913 × 100 × 10 × 1.77 × 444444.47 ÷ 7777777.0999:

0.778913 × 100 × 10 × 1.77 × 444444.47 = 612744929

612744929 ÷ 7777777.0999 ≈ 78.78

Add these all up:

357766 + 78.78 + 100 ≈ 460032.8

8 0
3 years ago
Read 2 more answers
George Kittle was given 300 protein bars. He eats 4 of them every day. Write an equation that represents the situation if he has
nikklg [1K]

Answer:

Part 1) The linear equation is y=-4x+300

Part 2) if he has 90 protein bars left, then 52.5 days have passed

Step-by-step explanation:

we know that

The linear equation in slope intercept form is equal to

y=mx+b

where

y is the number of protein bars left

x is the number of days

m is the slope or unit rate

b is the y-intercept or initial value

In this problem we have

The slope is equal to

m=-4\ \frac{bars}{day} ----> is negative because is a decreasing function

b=300\ protein\ bars

substitute

y=-4x+300  ---> linear equation that represent this situation

If he has 90 protein bars left

so

For y=90

substitute in the linear equation and solve for x

90=-4x+300\\4x=300-90\\4x=210\\x=52.5\ days

therefore

if he has 90 protein bars left, then 52.5 days have passed

3 0
4 years ago
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