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3 years ago

I hate doing these plz help

Mathematics

1 answer:

frutty [35]3 years ago

5 0

X + 8 > 13

(A number) plus eight must be greater than 13.
Hmm well we know that 5 plus 8 is 13.
So any value larger than 5 added to 8 will give us more than 13, yes?

If you look at the set that you're given,
the values which will make the inequality true are 5.5, 6 and 6.5.

5.5 + 8 = 13.5 (This is greater than 13)
6 + 8 = 14 (Still greater than 13)
6.5 + 8 = 14.5 (Yay)

The solution requires than you solve for x.
x has 8 being ADDED to it.
We can undo this by SUBTRACTING 8 from each side.

x > 13 - 8
x > 5

This is the solution.

For the last part, notice that the inequality is STRICT.
It is NOT a "greater than or equal to".

"or equal to" would mean we could include the value 5 in our solution set. But since the inequality is strict, it excludes the value 5.

You might be interested in

Simplify the expression below. 12b + 86 + 5b 0 25 + b O 25(3b) 25b 3b

Alja [10]

(1): "^-5" was replaced by "^(-5)". 3 more similar replacement(s)

STEP

Equation at the end of step 1

((25•(b-1))•(c-3))

(((12•(b4))•(c-6))•——————————————————)•((2•5b(-5))•c)

((15•(b3))•(c4))

STEP

Equation at the end of step

((25•(b-1))•(c-3))

(((12•(b4))•(c-6))•——————————————————)•(2•5b(-5)c)

((3•5b3)•c4)

STEP

Equation at the end of step

(52b(-1)•c(-3))

(((12•(b4))•(c-6))•———————————————)•(2•5b(-5)c)

(3•5b3c4)

STEP

52b(-1)c(-3)

Simplify ————————————

(3•5b3c4)

Dividing exponential expressions :

4.1 b(-1) divided by b3 = b((-1) - 3) = b(-4) = 1/b4

Dividing exponential expressions :

4.2 c(-3) divided by c4 = c((-3) - 4) = c(-7) = 1/c7

Dividing exponents:

4.3 52 divided by 51 = 5(2 - 1) = 51 = 5

Equation at the end of step

(((12•(b4))•(c-6))•—————)•(2•5b(-5)c)

3b4c7

STEP

Equation at the end of step

(((22•3b4) • c(-6)) • —————) • (2•5b(-5)c)

3b4c7

STEP

Canceling Out :

6.1 Canceling out b4 as it appears on both sides of the fraction line

Dividing exponential expressions :

6.2 c(-6) divided by c7 = c((-6) - 7) = c(-13) = 1/c13

Canceling Out:

6.3 Canceling out 3 as it appears on both sides of the fraction line

Equation at the end of step

——— • (2•5b(-5)c)

c13

STEP

Multiplying exponents:

7.1 22 multiplied by 21 = 2(2 + 1) = 23

Multiplying exponents:

7.2 51 multiplied by 51 = 5(1 + 1) = 52

Dividing exponential expressions :

7.3 c1 divided by c13 = c(1 - 13) = c(-12) = 1/c12

Final result :

200

—————

b5c12 Answer:

Step-by-step explanation:

5 0

3 years ago

How do you say 876543 in word form

Valentin [98]

Eight hundred seventy six thousand five hundred forty three.

7 0

3 years ago

Read 2 more answers

A tire dealer sells 2 tires for as much as he paid for 3 tires. he paid $240 for a dozen tires. What is the total profit on 12 t

tester [92]

First, find how much he paid by tire.
To do so, divide what he paid by how many tires he bought like this :
240$ / 12 = 20$ per tire

Then, calculate how much he sells each tire.
To do so, start by calculating how much he paid for 3 tires:
20$ x 3 = 60$

This is the price he sells 2 tires for, therefore :
60$ / 2 = 30$
he sells his tires 30$ each.

Finally, you have to calculate the profit he made by selling 12.
We already know how much it cost, so you need to find how much money he gets selling them :
12 tires x 30$ = 360$

To find the profit, take off the amount he paid from the amount he made :
360$ - 240$ = 120$

There you go!

3 0

3 years ago

What value of x will make ONM similar SRQ by the SAS similarity theorem?

Marta_Voda [28]

Answer:

The correct answer is 25

Step-by-step explanation:

See the attached figure.

SAS similarity theorem mean that when two triangles have corresponding angles are congruent and corresponding sides with identical ratios the triangles are similar.

So, if ΔONM similar ΔSRQ by the SAS similarity theorem

∴∠N = ∠R

And

$\frac{NM}{RQ} =\frac{NO}{RS}$