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agasfer [191]
3 years ago
14

Antonio has a total of 55 marbles. He has 15 green marbles and 12 red marbles. The rest of the marbles are blue. How many blue m

arbles does he have?
A student solves this problem by writing an equation. Which strategy could help check the student’s answer?
Mathematics
1 answer:
dedylja [7]3 years ago
5 0
Step 1: Create Equation: 12+15+x=55

Step 2: Solve it: you will get x=28

Step 3: You could check it by plugging your answer in.

Hope that helps!!!
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A train travels 190 km in 3.0 hours and then 120 km in 2.0 hours. What is its average speed?
melisa1 [442]
The average speed it 310
3 0
2 years ago
How do I simplify fractions and decimals?
Mila [183]

Answer:

Divide both the numerator and denominator by the largest number that divides evenly into both to simplify the fraction

In the example, divide 2 by 2, which equals 1, and divide 20 by 2, which equals 10. This leaves 1/10, which is the simplified form of the fraction with a decimal.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
14. The sum of two consecutive numbers is 73. What are the numbers?
NeTakaya
Consecutive numbers can be written as such:
n + (n + 1) = 73

Open the parentheses and simplify:
2n + 1 = 73

Subtract 1 from both sides:
2n = 72

Divide both sides by 2:
n = 36

The numbers are 36 and 37
6 0
3 years ago
Read 2 more answers
The water level in ricky lake changes at an average of -7/48 inch for 1 year.Based on the rate above how much will the water lev
bearhunter [10]

we are given

The water level in Ricky lake changes at an average of -7/48 inch for 1 year

It means that

In 1 year , the water level changes at \frac{-7}{48} inches

and we have to find the water level change after 5 years

so, we can multiply both sides by 5

In 5*1 year , the water level changes at 5*\frac{-7}{48} inches

In 5 years , the water level changes at \frac{-35}{48} inches

Hence,

the water level change after 5 years is \frac{-35}{48} inches........Answer

3 0
3 years ago
In 2015 Michael purchased a stock for $45.80 a share. During the year he received $1.71 per share in cash dividends. At the end
timama [110]
Michael's initial investment is $45.80, the cost of the share. 
Michael Receives $1.71 in dividends.
He receives $47.50 for the stock when he sells it.
His profit on the sale of the stock is $47.50 - 45.80 = $1.70.
His total return on the stock is his total earnings, the dividends plus his profits on the sale of the stock, divided on what he paid initially, $45.80:
(1.71 + 1.70) ÷ 45.80 = .0744 = 7.45%
7.45% return on investment in less than a year, not bad!
Closest answer is 7.7%, not sure why it isn't exactly 7.45 or 7.5%. 

Answer is B) 7.7%
7 0
3 years ago
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