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3 years ago

BRAINLIEST AND 80 POINTS

Mathematics

2 answers:

snow_lady [41]3 years ago

6 0

Answer:

1/5

Step-by-step explanation:

Experimental probability is the actual times it happens divided by the number of trials

Actual times red occurs:2

Trials: 10

Experimental probability: 2/10 = 1/5

zysi [14]3 years ago

4 0

Answer:1/5

Step-by-step explanation:Experimental probability is the actual times it happens divided by the number of trials

Actual times red occurs:2

Trials: 10

Experimental probability: 2/10 = 1/5

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A robot filled 105 medicine bottles in 3 minutes. it filled them at a constant rate. what was the rate per minute at wich the ro

hram777 [196]

105 ÷ 3 = 35
The robot could fill 35 bottles in 1 minute.

7 0

2 years ago

If a 12-foot-tall object casts a 9-foot shadow, how long a shadow would a 4-foot-tall object cast at the same time and place

marin [14]

Answer:

I think it is 3 feet

Step-by-step explanation:

12:9 is equal to 4:3

4:? should also be equal to 4:3, so ?=3

Hope this helps

let me know if it does and if it is right

7 0

2 years ago

Express each ratio as a unit rate.round to the bearest tenth,if necessary. 2 note books for $0.60

FrozenT [24]

Option B

2 notebooks for $ 0.60 expressed as unit rate is $ 0.30 per notebook

<h3><u>Solution:</u></h3>

We have to express ratio as unit rate

Given that, 2 notebooks for $ 0.60

Number of notebooks = 2

Cost of 2 notebooks = $ 0.60

So we have to find cost of 1 notebook

$\begin{array}{l}{\text { cost of } 1 \text { notebook }=\frac{\text { cost of } 2 \text { notebook }}{2}} \\\\ {\text { cost of } 1 \text { notebook }=\frac{0.60}{2}=0.30}\end{array}$

So unit rate = cost of 1 notebook = $ 0.30

So 2 notebooks for $ 0.60 as unit rate is $ 0.30 per notebook

6 0

3 years ago

Read 2 more answers

Im not sure how to solve this

Irina-Kira [14]

A question:
(5.3 x 10 to the 6th power) + 8.2 10 to the 6th power)
A solution:
Multiply 10 x 10 6 times to get rid of the two powers.
(5.3 x 1,000,000) + (8.2 x 1,000,000)
Multiply inside the parenthises.
(5,300,000) + (8,200,000)
Add:
13,500,000.
A answer:
13, 500,000.

B question:
(6.5 x 10 to the 7th power) / (5 x 10 to the 3rd power)
B solution:
Again, get rid of the powers.
(6.5 x 10,000,000) / (5 x 1,000)
Multiply inside the parenthesis:
(65,000,000) / (5,000)
Divide:
13,000
B answer:
13,000.

C question:
(4.6 x 10 to the 6th power) (3 x 10 to the 5th power) / (2 x 10 to the 7th power)
C solution:
Get rid of powers:
(4.6 x 1,000,000) (3 x 100,000) / (2 x 10,000,000)
Multiply:
(4,600,000) (300,000) / (20,000,000)
multiply in the left side:
(1,380,000,000,000) / (20,000,000)
divide:
69,000
C answer:
69,000

8 0

3 years ago

Math question please show work due today last day to submit Assignments or I fail please help

irina [24]

Answer:

$\$128.43$

Step-by-step explanation:

Since the cost for border paper is given in terms of feet and the dimensions of the gym are given in meters, we want to convert them to the same unit. Let's choose to convert feet to meters since that would be only one conversion:

$15\:\mathrm{ft}=4.572\:\mathrm{m}$

Therefore, the cost of border paper is $6.99 pet 15 feet or $6.99 pet 4.572 meters.

Since the gym is rectangular, the gym's perimeter is equal to:

$p=15+27+15+27,\\p=2(15)+2(27)=84\:\mathrm{m}$

Therefore, the cost of the total border paper for the gym is equal to:

$\text{cost}=\frac{84}{4.572}\cdot 6.99\approx \boxed{\$128.43}$

8 0

2 years ago

Read 2 more answers