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2 years ago

Kari thinks, "x is the difference between 87 and 34.25 is this true or not?

Mathematics

1 answer:

Pavlova-9 [17]2 years ago

4 0

This is true because it is an unknown number so it is replaced by a variable.

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Elk middle school has 264 students. There are 84 students in the eighth grade. There are 22 fewer seventh-grade students than si

Vinvika [58]

Answer:

There were 84 students in 6th grade, 68 in 7th grade, and 90 in 8th grade.

Step-by-step explanation:

Given that Elk middle school has 264 students, and there are 84 students in the eighth grade, and there are 22 fewer seventh-grade students than sixth-grade students, to determine how many students there are in each grade, the following calculation must be performed:

(264 - 84) / 2) - 22 = X

(180/2) - 22 = X

90 - 22 = X

68 = X

6th grade = 84

7th grade = 68

8th grade = 90

Therefore, there were 84 students in 6th grade, 68 in 7th grade, and 90 in 8th grade.

3 0

2 years ago

Help i’ll give brainliest

Lina20 [59]

Answer:

The 3rd one

Step-by-step explanation:

It's a translation. The rest are reflections.

8 0

2 years ago

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Garrett is flying from Cincinnati to Memphis on a Boeing 737 jet. When the plane reaches an altitude of 360,000 feet, the temper

kirza4 [7]

QUESTION 1

When the plane reaches an altitude of 360,000 feet, the temperature outside the plane is 65 degrees below zero Fahrenheit.

This means that the temperature will be:

$0-65=-65$

The temperature is -65°F.

QUESTION 2

If the temperature gets warmer by 10 degrees, this means that the new temperature will be the sum of the original temperature and 10 degrees:

$\Rightarrow-65+10=-55$

The temperature is -55°F.

5 0

9 months ago

Calculate the length of the circumference of a circle with radius of 7cm

borishaifa [10]

The circumference should be 43.98

7 0

2 years ago

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What is 4.3(v+2.5)=8.11+4v

True [87]

Answer:

-8.8

Step-by-step explanation:

We begin by simplifying the parenthesis through multiplication. Parenthesis is a structure which signals multiplication happening.

$4.3(v+2.5)=8.11+4v\\4.3v+10.75=8.11+4v$

We now begin combining like terms across the equal sign by performing the inverse or doing the opposite. Move first the 8.11 by subtracting it from both sides.

$4.3v+10.75-8.11=8.11-8.11+4v\\4.3v+2.64=4v$

Now, move 4.3v across by subtracting it from both sides.

$4.3v-4.3v+2.64=4v-4.3v$

$2.64=-0.3v$

Finally, we divide both sides by the coefficient of v.

$\frac{2.64}{-0.3} =\frac{-0.3v}{-0.3} \\-8.8=v$

6 0

3 years ago