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3 years ago

If

Mathematics

1 answer:

jeka57 [31]3 years ago

3 0

Answer:

Step-by-step explanation:

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You paint 1/2 wall in 1/4hour At that rate how long will it take you to paint one wall

3241004551 [841]

Answer:

half hour

Step-by-step explanation:

Do 1 fourth times two

8 0

3 years ago

The water level in a lake was monitored and was noted to have changed -2 1/3 inches in one year. The next year it was noted to h

Diano4ka-milaya [45]

Answer:

The total change in water level over the past 2 years is $\displaystyle -4 \frac{1}{6}$ .

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Fractions

Proper and Improper

Numbers

Least Common Multiple (LCM)

Step-by-step explanation:

Step 1: Define

Identify

Year 1 water change: $\displaystyle -2 \frac{1}{3}$

Year 2 water change: $\displaystyle -1 \frac{5}{6}$

Step 2: Find Total Water Change

[Set up] Add yearly water changes: $\displaystyle -2 \frac{1}{3} + -1 \frac{5}{6}$
[Fractions] Convert to improper: $\displaystyle \frac{-7}{3} - \frac{11}{6}$
[Fraction] Rewrite [LCM]: $\displaystyle \frac{-14}{6} - \frac{11}{6}$
[Order of Operations] Subtract: $\displaystyle \frac{-25}{6}$
[Fraction] Convert to proper: $\displaystyle -4 \frac{1}{6}$

5 0

3 years ago

Angela says that 6.25 is 1/100 the value of 625. Write an explanation to support Angela's statement.

gladu [14]

Answer:

6.25 times 100 will equal to 625. When you multiply by 100, you can move the decimal two spaces to the right since there are two zeros, and you get 625.

Step-by-step explanation:

I hope this helped you!

If it did, could you please mark me brainliest? That would help me!

Thank you so much! ;) :)

6 0

3 years ago

Read 2 more answers

The sum of two numbers is 53 and the difference is 11. What are the numbers?

vaieri [72.5K]

Let assume that the the two numbers are X and Y and that X is the large number.
According to the question,
X + Y = 53 .................. Equation 1
then, X = 11 + Y........... Equation 2
Substitute equation 2 into equation 1.
[11 + Y] + Y = 53
11 + 2Y = 53
2Y = 53 - 11 = 42
2Y = 42
Y = 42 / 2 = 21,
Therefore, Y = 21 [Small number].
According to equation 1,
X +Y = 53
X + 21 = 53
X = 53 - 21 = 32.
Therefore, X = 32 [Big number].

4 0

3 years ago

a camera attached to a telescope photograph the Stars image once every 0.045 seconds how many complete images can the camera cap

RideAnS [48]

Answer:

0.135 images

Step-by-step explanation:

all you have to do is multiply 0.045× 3.

The answer is 0.135.

you have go move the decimals 3 times to the left

5 0

3 years ago