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vfiekz [6]
3 years ago
15

one fourth of the 7th grade students made honor roll in the first quarter. the number of honor roll students increased by 18 in

the second quarter. If 105 students made honor roll in the second quarter. How many total 7th graders are there?
Mathematics
1 answer:
Mandarinka [93]3 years ago
3 0

1/4 of x students made the honor roll in the first quarter

1/4 of x plus 18 equals 105

1/4 x + 18 = 105

1/4 x + 18 - 18 = 105 - 18

1/4 x = 87

Reciprocal to isolate variable

4/1(1/4 x) = 87(4/1)

x = 348

There is a total of 348 students in 7th grade

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One question = 15 points<br> m – 9 = 11
just olya [345]

Answer:

m=20

Step-by-step explanation:

hope this helps!! :)

8 0
3 years ago
When painting my bedroom I used 3 1/2 liters of blue paint and 2 1/4 liters of red paint. How much paint did I use in all
Lubov Fominskaja [6]
Hi there!

To solve this problem, we need to find the total amount of paint used by adding the two fractions.

First, we need to find the common denominators below adding.

1/2 = 2/4
1/4 = 1/4

The common denominator is 4.

Now, we add the mixed numbers together:

3 2/4 + 2 1/4 = 5 3/4

Since 5 3/4 can't be simplified, the answer is:

5 3/4 liters of paint

Hope this helps!

4 0
3 years ago
Read 2 more answers
Write an equation in slope-intercept form of the line having the given slope and y-intercept.
pychu [463]

Answer:

The answer to your question is   y = 4/6x - 4

Step-by-step explanation:

Data

m = 4/6

P (0, -4)

slope-intercept form = ?      y = mx + b    where m is the slope and

                                                                  b is the y-intercept

Formula

           y - y1 = m(x - x1)

Substitution

           y - (-4) = 4/6(x - 0)

Simplification

           y + 4 = 4/6x

Result

                 y = 4/6x - 4

slope = 4/6  y-intercept = -4

7 0
3 years ago
A negative number raised to an odd power ______ negative
Fiesta28 [93]
A negative number raised to an odd power IS negative
3 0
3 years ago
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Choose the proper rationale. "In the compound interest equation, time
k0ka [10]

Answer:

The correct answer is:

c. Time is an exponent while the other units are factors.

Explanation:

In the compound interest formula, time is the exponent.

Since it is the exponent, this tells us how many times the base is multiplied by itself.  As such, it has a larger effect on the answer than any other piece of the equation.

4 0
3 years ago
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