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2 years ago

Round Each Number To The Nearest Ten To Estimate 87.4 - 28.5 !! I Need Help

Mathematics

1 answer:

irinina [24]2 years ago

8 0

<span>87.4 - 28.5

87.4 = 87.0

so
87.0 - 28.5 = 58.5

answer
58.5 </span>

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Hi guys please help meee

Lisa [10]

<h3>Answer: 10</h3>

=======================================================

Explanation:

We'll start off converting each mixed number into an improper fraction.

The formula to use is $A \frac{b}{c} = \frac{A*c+b}{c}$

So,

$A \frac{b}{c} = \frac{A*c+b}{c}\\\\2 \frac{1}{8} = \frac{2*8+1}{8}\\\\2 \frac{1}{8} = \frac{16+1}{8}\\\\2 \frac{1}{8} = \frac{17}{8}\\\\$

And,

$A \frac{b}{c} = \frac{A*c+b}{c}\\\\2 \frac{2}{3} = \frac{2*3+2}{3}\\\\2 \frac{2}{3} = \frac{6+2}{3}\\\\2 \frac{2}{3} = \frac{8}{3}\\\\$

So the task of computing $2 \frac{1}{8} \times 2 \frac{2}{3}$ is exactly the same as computing $\frac{17}{8} \times \frac{8}{3}$

Notice how we have an 8 up top and an 8 down below. Those 8's cancel out and we're left with $\frac{17}{3}$ . That fraction does not reduce any further.

The last step is to convert that improper fraction result to a mixed number.

$\frac{17}{3} = \frac{15+2}{3}\\\\\frac{17}{3} = \frac{15}{3}+\frac{2}{3}\\\\\frac{17}{3} = 5+\frac{2}{3}\\\\\frac{17}{3} = 5 \frac{2}{3}\\\\$

Or you could note that 17/3 leads to 5 remainder 2. The 5 is the whole part and the 2 forms the numerator of the fractional part 2/3.

The value is in $A \frac{b}{c}$ form where

A = 5
b = 2
c = 3

Therefore, A+b+c = 5+2+3 = 10

8 0

1 year ago

Read 2 more answers

I need help with this question. Question is in image below.

ExtremeBDS [4]

Answer:

A. Answer is 2263.

Checkpoint 1 is -86 Checkpoint 4 is 2177

Subtract -86 from 2177....2177-(-86)

=2263

2263 is how much higher checkpoint 1 (-86) is from checkpoint 4 (2177)

B. 239 FEET.

the altitude of the hill must be subtracted by the depth of the ckeckpoint(2)(-189)

therefore the altitude of the hill comes out to be 428-189=239feet.

therefore,the actual altitude of the hill is 239 feet.

7 0

1 year ago

What is the value of x?

alisha [4.7K]

Answer:

Answer is 10

Step-by-step explanation:

you break the equation up to get your answer hope this will help

8 0

1 year ago

Read 2 more answers

What is the opposite of 2.5

Kryger [21]

-2.5 because a positives opposite is a negative.

5 0

2 years ago

Read 2 more answers

You cook a turkey in an oven for 3 hours and 45 minutes. Let f(t) be the temperature (in degrees Fahrenheit) of the turkey t hou

Thepotemich [5.8K]

You cook a turkey in an oven for 3 hours and 45 minutes. Let f(t) be the temperature (in degrees Fahrenheit) of the turkey t hours after being placed in the oven.

a) At t = 0

temperature of turkey is 67 degree Fahrenheit

b) At t = 3.75

temperature of turkey is 165 degree Fahrenheit

c) t = 3

temperature of turkey is 4 degree Fahrenheit

d) at t = 3.75

temperature of turkey is 169 degree Fahrenheit

<h3>What is basic algebra ?</h3>

Algebra is a branch of mathematics that facilitates the description of problems or situations into mathematical statements. It involves variables like x, y, and z as well as mathematical operations like addition, subtraction, multiplication, and division to generate a valid mathematical statement. All branches of mathematics, such as coordinate geometry, calculus, and trigonometry, employ algebra. An elementary algebraic formula is 2x + 4 = 8. Algebraic expressions serve as the mathematical statement when operations on variables and constants, such as addition, subtraction, multiplication, division, etc., are done.

Given that : You cook a turkey in an oven for 3 hours and 45 minutes. Let f(t) be the temperature (in degrees Fahrenheit) of the turkey t hours after being placed in the oven.

a) At t = 0

temperature of turkey is 67 degree Fahrenheit

b) At t = 3.75

temperature of turkey is 165 degree Fahrenheit

c) t = 3

temperature of turkey is 4 degree Fahrenheit

d) at t = 3.75

temperature of turkey is 169 degree Fahrenheit

To learn more about basic algebra visit :

brainly.com/question/15167098

#SPJ9

8 0

9 months ago