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lyudmila [28]
3 years ago
12

Solve and check the following equation. p = −2p −15p =

Mathematics
2 answers:
masha68 [24]3 years ago
8 0

Answer:

I think its -17p

Step-by-step explanation:

san4es73 [151]3 years ago
7 0

Answer:

p = 0

Step-by-step explanation:

The given equality is p= -2p - 15p

Simplifying, p = (-2-15)p

=> p= -17p

Moving all the terms to the left hand side:

=> p + 17 p =0

=> 18 p =0

The only value of p for which this equality will hold is when p= 0/18 = 0

Validation:

Substituting p = 0 in the original equality:

p= -2p - 15p

LHS = p = 0

RHS = -2p - 15p

= -2*0 -15*0 = 0-0 = 0

So the two sides are equal and the equality is valid for p = 0.

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Area of parallelogram if base 7 and heigt 3
Gemiola [76]
Area of a parallelogram is base into height,
area=h×b
=7×3
=21
answer= 21 squared
7 0
3 years ago
A class of 25 students took a spelling test.
True [87]

Answer:

90.6

Step-by-step explanation:

I think you have the first line incorrect. You show below that 10 students scored 90, so the first line is that 2 students scored 100, not 90. The line with the score of 90 is missing the number of students, but we can find it out. Call that number x for now.

Two students scored 100 each                                2

x students scored 95 on each test                         x

ten students scored 90 on each test                    10

three students score  80 on each test                    3

and one student scored 70                              <u>   +   1 </u>

                                                                            x + 16

There are x + 16 students accounted for. The total number of students is 25.

x + 16 = 25

x = 9

9 students scored 95 on each test.

Now add up all the points scored by all students.

Two students scored 100 each  (2 * 90)                200

9 students scored 95 on each test (9 * 95)          855

ten students scored 90 on each test (10 * 90)     900

three students score  80 on each test (3 * 80)      240

and one student scored 70 (1 * 70)                    <u>  +  70 </u>

Sum of all points:                                                  2245

Now we find the average grade by dividing the sum of the points by the number of students.

average = sum/number = 2265/25 = 90.6

8 0
2 years ago
What is the box-and-whisker plot for the data? <br> 18 22 27 19 10 8 24 21
Digiron [165]

Answer: Second one

Step-by-step explanation: The median is 20, so it can only be the first or second one, but the highest number in the data is 27, and the highest number in the data of the first one is 30, so it must be the second one.

3 0
2 years ago
In 1992, Disney created a one-of-a-kind special pin. Each year, the pin’s value appreciates by a constant amount. In 1997, the p
AnnyKZ [126]

Answer:

y  = 50x + 50

Step-by-step explanation:

Given

x = years since 1992.

y = value of pin

This means that

x = 1 ----- in 1992

x_1 = 6; y_1 = 350 ---- in 1997

x_2 = 11; y_2 = 600 ---- in 2002

Required

Determine the line equation in slope intercept form

First, we need to determine the slope (m) of the line

m = \frac{y_2 - y_1}{x_2- x_1}

m = \frac{600 - 350}{11- 6}

m = \frac{250}{5}

m = 50

The equation is then calculated using:

y - y_1 = m(x - x_1)

Recall that

x_1 = 6; y_1 = 350

m = 50

So, we have:

y - 350 = 50(x - 6)

y - 350 = 50x - 300

y  = 50x - 300 + 350

y  = 50x + 50

8 0
2 years ago
How many millimeters are in 1 centimeter?​
zhenek [66]

Answer:

10

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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