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3 years ago

PLEASE HELP IM BEGGING Ira B. Scholar, that bizarre math teacher, put the figure at right on a recent test and said,

Mathematics

1 answer:

rewona [7]3 years ago

7 0

Answer:

The perimeter is the distance all the way around the outside of a 2D shape. To calculate the perimeter, sum the lengths of all the sides.

Therefore, perimeter of the triangle = (2x - 8) + (2x + 5) + (30 - 3x)

Collect like terms: 2x + 2x - 3x - 8 + 5 + 30

Combine like terms: x + 27

Therefore, perimeter of triangle = x + 27

We are told that the perimeter is 25:

x + 27 = 25

Subtract 27 from both sides: x = -2

If x = -2, then the side with equation 2x - 8 = (2 x -2) - 8 = -12

A length cannot be negative, therefore the perimeter cannot equal 25.

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6|6-4x|=8x+4<br> Need help solving the equation. I need help checking the extraneous solutions too.

Vsevolod [243]

$6|6-4x|=8x+4\\\\Formula\ for\ absolute\ value\\\\
|a|=a,\ for\ a \geq 0\\ or\\|a|=-a,\ for\ a \ \ -4x \geq -6\ \ -->\ \ \ x \leq \frac{3}{2}\\\\
6(6-4x)=8x+4\\
36-24x=8x+4\ \ |subtract\ 4\\
32-24x=8x\ \ | add\ 24x\\
32=32x\ \ | divide\ by\ 32\\
x=1\ \ \ and\ 1 \leq \frac{3}{2}\\\\
II\\
for\ 6-4x \ \ -4x < -6\ \ -->\ \ \ x > \frac{3}{2}\\\\
6(-6+4x)=8x+4\\
-36+24x=8x+4\ \ | subtract4\\
-40+24x=8x\ \ \ | subtract\ 24x\\
-40=-16x\ \ | divide\ by\ -16$ $x=2,5\ \ and\ 2,5>\frac{3}{2}\\\\Solutions:\\
x\in \{1;2,5\}$

8 0

3 years ago

265,888 round to the nearest ten thousand

alexandr1967 [171]

265,888 rounded to the nearest ten thousand is 70,000.

8 0

3 years ago

The number of bones in a weightlifter's foot is 26 how many bones are there in the feet of 26 weightlifters

blsea [12.9K]

Answer:

1352 bones

Step-by-step explanation:

There are 26 bones in 1 foot

There are 2 feet per weightlifter

So each person has 2*26 = 52 bones in their feet

If we have 26 weightlifters, they have 52 bones in their feet.

26*52 = 1352 bones for 26 weightlifters for both feet

4 0

4 years ago

Read 2 more answers

Imani can pick forty bushels of apples in 15 hours. Bill can pick the same amount in 13 hours. Find how long it would take them

Delvig [45]

Answer:

6.96 hours.

Step-by-step explanation:

First, we need to find out the hour rate of bushels picked for each of them.

If Imani can pick 40 bushels in 15 hours, then he picks 40/15 = 8/3 bushes per hour.

If Bill can pick 40 bushels in 13 hours, then he picks 40/13 bushes per hour.

Working together, they pick: $\frac{8}{3} +\frac{40}{13}$ bushes per hour.

Let's simplify this expression:

$\frac{8}{3} + \frac{40}{13} = \frac{104+120}{39} = \frac{224}{39}$ = 5.74

Now we can use a rule of three

1 hour -------5.74

x hours ------40

Then,

x = 40 / 5.74 = 6.96

Therefore, it would take them 6.96 hours working together.

6 0

4 years ago

PLEASE ANSWER ASASP!!!!!!!!!!!!!

Soloha48 [4]

Answer:

No, a value of 3.5 for t does not make any sense because it should be a discrete value.

Step-by-step explanation:

Given equation is:

c = 2.5t

Here,

c = Cost

t = number of tickets

Now,

The value of t cannot be a decimal number but it must be a whole number. Because half ticket cannot be sold.

Hence,

No, a value of 3.5 for t does not make any sense because it should be a discrete value.

3 0

3 years ago