MATHEMATICS MIDDLE SCHOOL

What’s the answer and how do I do it

Answers

Answer 1

Answer:

Answer:

30.6%

Step-by-step explanation:

10.75/15.5 = x/100

0.69354838709 x 100 = x = 69.3548387097

100% - 69.3548387097% = 30.6451612903% discount

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As a salesperson, you are paid $100 per week plus $3 per sale. This week you want your pay to be at least $160. Write an inequality for the number of sales you need to make, and describe the solutions.

Answers

Answer:

100 +3s≥ 160

You must sell as least 20 items

Step-by-step explanation:

You make 100 plus 3 dollars per sale

100 +3s

It must be at least 160

100 +3s≥ 160

Now we need to solve to see how many sales

100 +3s≥ 160

Subtract 100 from each side

100-100 +3s≥ 160-100

3s≥ 60

Divide each side by 3

3s/3≥60/3

s≥20

You must sell as least 20 items

Why is it not possible to draw a square that is not a parallelogram

Answers

So a square is a parallelogram with four sides of equal length and angles of equal size. In other words, all squares are parallelograms, but only some parallelograms are squares.

because just because they have 4 sides and equal length doesn't mean that all squares are parallelogram.

Help with this math question ASAP Plz

Answers

sales-expense=netprofit
sales=147000+354000=501000
expense=204000+2ndyear
netrofit=87000

so

50100-(204000+2ndyear)=87000
minus 501000 both sides
-(204000+2nd year)=-414000
multiply both sides by -1
204000+2nd year=414000
minus 204000 both sides
2nd year=210000

answer is A

-6=4x+12 find the answer please

Answers

x=4.5 or 4 and 1/2 because 4 multiplied by -4.5 equals -18 then add 12 now you got -6

ya x =4.5 thats all u get fro m me XD

In the figure below, Sin 62 degrees - 17/c. Based on the figure, which of the following equations is also true ?A. Cos 62 degrees = 17/c
B. Tan 62 degrees = c/17
C. Cos 28 degrees = 17/c
D. Sin 28 degrees = c/17

Answers

Answer:

Therefore Based on the Figure only the third option i.e C. ic True

$\cos 28\° = (17)/(c)$

Step-by-step explanation:

Given:

Let label the figure first such that

In Δ ABC , ∠C = 90° , ∠ B = 62°,

$\sin 62\°=(17)/(c)$

AB = Hypotenuse = c

AC = 17

To Find:

True Statements

Solution:

Triangle sum property:

In a Triangle sum of the measures of all the angles of a triangle is 180°.

$\angle A+\angle B+\angle C=180$

Substituting the values we get

$\angle A +62+90=180\n\angle A=180-152=28\n\angle A=28\°$

In Right Angle Triangle ABC , Cosine Identity we have

$\cos A = \frac{\textrm{side adjacent to angle A}}{Hypotenuse}\n$

Substituting the values we get

$\cos 28\° = (AC)/(AB)=(17)/(c)\n\n\cos 28\°=(17)/(c)$

Here in this figure

$\tan B = \frac{\textrm{side opposite to angle B}}{\textrm{side adjacent to angle B}}$

$\sin A = \frac{\textrm{side opposite to angle A}}{Hypotenuse}\n$

Substituting we get

$\tan 62\° = (17)/(BC)$

$\cos 62\° = (BC)/(c)$

$\sin 28\° = (BC)/(c)$

Therefore Based on the Figure only the third option i.e C. is True

$\cos 28\° = (17)/(c)$

What is the area of this trapezoid?A) 108 in²
B) 139.5 in²
C) 166 in²
D) 171 in²

Answers

Answer:

B)139.5

Step-by-step explanation:

Right-angled triangle formula A=ab/2 so find the area of both triangles left side: 2*9/2=9 right side 5*9/2= now find the area of the rectangle 9*12= add all them together 9+22.5+108=139.5

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