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2 years ago

Please help me asap! Thanks in advanced guys! :)

Mathematics

2 answers:

sp2606 [1]2 years ago

6 0

Answer:

x = 17 because 8x + 20 equals 11x-31, you simplify both by subtrcting 8x from both sides to get 20 = 3x -31. Then you add 31 to both sides to get 51 = 3x. Then divide 3 from both sides and you get 17 = x

cluponka [151]2 years ago

5 0

Answer:

I think I did it wrong but I try

Step-by-step explanation:

8x+20+11x-31

-8x -8x

20-31 =3x

+31 +31

51 =3x

17=x

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What fraction of 3 is 2 2/5

Yuki888 [10]

Answer: 2 2/5 is 4/5 of 3

Step-by-step explanation:

We can view that as what do we multiply 3 by to get 2 2/5 and call that value x

3x = 2 2/5

x = (2 2/5)/3

Let's turn 2 2/5 into an improper fraction... 2 2/5 = 12/5

So we have

x = (12/5)/3 = (12/5)(1/3) = 4/5

Thus 2 2/5 is 4/5 of 3

Verify: 3(4/5) = 12/5 = 2 2/5

5 0

2 years ago

Jamie is buying 5 concert tickets, and he wants his total cost to be no more than $4 Above or below $80. Which inequality models

kumpel [21]

Answer:

Option C $\left|80-5x\right|\le 4$

Step-by-step explanation:

Let

x ----> the cost of the concert ticket

we know that

The total cost to be no more than $4 Above $80

$5x\leq 80+4$

Solve for x

$x\leq \$16.80$

The total cost to be no more than $4 below $80

$5x\geq 80-4$

Solve for x

$5x\geq 76$

$x\geq \$15.2$

therefore

The inequality that represent this problem is

$\left|5x-80\right|\le 4$

<u><em>Verify</em></u>

<em>First solution (positive case</em>)

$+(5x-80)\le 4$

$5x\le 80+4$

Solve for x

$x\leq \$16.80$ ----> is ok

<em>Second solution (negative case)</em>

$-(5x-80)\le 4$

Multiply by -1 both sides

$(5x-80)\ge -4$

$5x\geq 80-4$

Solve for x

$5x\geq 76$

$x\geq \$15.2$ ---> is ok

Remember that

$\left|5x-80\right|\le 4$ is equivalent to $\left|80-5x\right|\le 4$

Because is a absolute value

8 0

2 years ago

Solve for x solve for x

soldi70 [24.7K]

Answer:

x=5

Step-by-step explanation:

since two sides are congruent, the two unknown angles are congruent.

All triangle angles total 180 degrees.

so:

180-88=92

92/2=46

9x+1=46

9x=45

x=5

5 0

2 years ago

Read 2 more answers

A pair of consecutive integers has the property that 8 times the lesser is more than 4 times the greater. Find the least pair of

daser333 [38]

2 and 3
negative numbers won't work, nor will 0
1 and 2 won't work because 1*8=2*4
2 and 3 is the answer

5 0

3 years ago

Simplify -3 to the exponent of 4

WITCHER [35]

<h2><u>Answer</u>:</h2>

<h2><u>Step-by-step explanation</u>:</h2>

$( - 3)^{4} \\ \\ - 3 \times - 3 \times - 3 \times - 3 \\ \\ 9 \times 9 \\ \\ 81$

Hence answer is 81.

8 0

2 years ago