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2 years ago

Can someone help me with this please?!

Mathematics

1 answer:

posledela2 years ago

7 0

Answer:

x < 6

Step-by-step explanation:

1) -5x > -30

2) divide both sides by -5

3) flip the sign as we divided inequality by a negative

4) x < 6

You might be interested in

Which expression represents the product of two factors: 7p and 9?

Alinara [238K]

Answer:

9(7p) is the expression.

Step-by-step explanation:

Let's multiply 7p and 9 to get product,

→ 7p × 9

→ 9(7p)

So, the product is 9(7p).

8 0

2 years ago

Erika calculated that she would spend $115 on school supplies this year. She actually spent $82.50 on school supplies. What is E

DerKrebs [107]

Answer:

Step-by-step explanation:

Percentage error is calculated by

Percentage error = (estimate-real)/real*100%=(115-82.5)/82.5*100%=28.26%

An over-estimate gives a positive error percent, and an underestimate gives a negative error.

Also, dividing by the real value makes it possible to have more than 100% error.

For example, if real cost is $50, and estimated cost is $150, then error percent is (150-50)/50*100%=200%!

C: 39.4%

Step-by-step explanation:

The formula to calculate the percent error is given by :-

Given: The estimated amount = $115

The actual amount = $ 82.50

Now, the percent of error will be given by :-

4 0

3 years ago

The oblique prism has a rectangular base with a width of 10 units and a length of 13 units.

Wittaler [7]

we know that

The volume of the prism is equal to

$V=B*h$

where

B is the area of the base

h is the height of the prism

Step 1

Find the area of the rectangular base

we know that

the area of a rectangle is equal to

$A=L*W$

In this problem we have

$L=13\ units$

$W=10\ units$

$A=13*10=130\ units^{2}$

Step 2

Find the height of the prism

Applying the Pythagoras Theorem

$17^{2}=8^{2} +h^{2}$

solve for h

$h^{2}=17^{2}-8^{2}$

$h^{2}=225$

$h=15\ units$

Step 3

Find the volume of the prism

The volume of the prism is equal to

$V=B*h$

substitute the values

$V=130*15=1,950\ units^{3}$

therefore

the answer is

$1,950\ units^{3}$

4 0

3 years ago

Read 2 more answers

Can anyone help me??

Tasya [4]

Your in luck! I was just learning these percent things today 'xD but Not in luck at the same time. I will answer the 2 questions that's the most I can do.

1. $17.50 with a 7% sales tax

Answer: 17.50 times .07 equals 1.23

17.50 plus 1.23 equals 18.73

The answer is $18.73

2. 21.95 with a 4.25% sales tax

Answer: 21.95+4.25=26.20

Hope this helps!! :D this took me a while to figure out and used a bit of my time. So I hope the time was worth it! :)

5 0

4 years ago

45 times 1234 what is the answer

scoundrel [369]

The answer of 45X1234 is 55530

7 0

3 years ago