Solve each equation.Show your work.
Can someone help me please??​

Solve Each Equation.Show Your Work.Can Someone Help Me Please??

Answers

Answer 1

Answer:

1/2a = -5

a = (-5 x 2) : 1

a = -10

8 - b = 9,5

b = 8 - 9,5

b = -1,25

0,1 = -10c

c = 0,1 : -10

c = -0,01

I hope it's helpful.


Related Questions

Find the exact value of the expression: -6 3/5 - (-7 4/15) + 2 1/5
plzzzzzzzzz

Answers

Answer:

2 13/15

43/15

Step-by-step explanation:

18).

Find mZBCA.
B
(5x + 12)
[.
(9x + 1)
А
(10x – 37)°

Answers

Answer:

m∡BCA = 57°

Step-by-step explanation:

find 'x' by adding all expressions and setting them equal to 360°

9x+1 + tx+12 + 10x-37 = 360

24x = 384

x = 16

Substitute 16 into 10x-37

160 - 37 = 123

m∡BCA is supplemental with 123°, therefore it measures 57°

20 POINTS
ANSWER FAST

Which of the following is not the Square Root of a Perfect Square?
A. 6
B. 12
C. 4
D. None of the above

Answers

Answer:

D I think

Step-by-step explanation:

Answer:

D, none of the above.

Step-by-step explanation:

6 is a square root of 36, which is a perfect square.

12 is a square root of 144, which is a perfect square.

4 is a square root of 16 AND a perfect square of 2.

Therefore the answer is none of the above.

please solve this :)

Answers

Answer:

Step-by-step explanation:

hello :

cos66° = x/14

x= 14× cos66°

x= 14× 0.41

x=5.74

hat is the slope and y-intercept of the linear function?

y = -8x + 2

Answers

Answer:

-8

Step-by-step explanation:

Okay so in y=mx+b equations like this one, m is the slope, so whatever number before x is the slope

A tree casts a shadow 31 feet long when the angle of
elevation of the sun is 58º. Find the height of the tree.

Answers

Answer:

x=24.2198542

ROUND IF NEEDED

Step-by-step explanation:

We are trying to find the height of the tree or the vertical side

We are given

The angle of elevation or the angle at the ground ,38The horizontal length, 31.

Since we have a side that is adjacent to that angle and we are trying find backside that us opposite of that angle

we are going to use tangent

[tex] \tan(x) = \frac{opp}{adj} [/tex]

plug 38 in for x or theta, x for opp side and 31 for adjacent side

[tex] \tan(38) = \frac{x}{31} [/tex]

Multiply 31 by both sides to find x

x=24.2198542

ROUND IF NEEDED.

a) Change 9 out of 50 to a percentage​

Answers

18%

How much is 9 out of 50 written as a percent value? Convert fraction (ratio) 9 / 50

Kiera ordered a set of brown and green pins. She received 63 brown pins and 27 green pins. What
percentage of the pins were brown?

Answers

Answer:

Step-by-step explanation:

27

(3x+3)^2+(x+5)(x-4)
someone help thankyou

Answers

Use this. It’s really good
10x^2+ 19x - 11
(if the directions said to simplify)

What is the equation of the line that passes through the point (-5,5) and has a
slope of -1?

Answers

Answer:

y = - x

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = - 1 , then

y = - x + c ← is the partial equation

To find c substitute (- 5, 5 ) into the partial equation

5 = 5 + c ⇒ c = 5 - 5 = 0

y = - x ← equation of line

Over the past few years Donald made 40 trips to the amusement park. He drove 400 km in all. The distance travelled by him on each trip to the park is:

Answers

Answer:

10

Step-by-step explanation:

Answer:

10 km

Step-by-step explanation:

total no of km covered=400

total no of trips=40

distance in each trip= 400/40

=10km

multiply -24, and add -10

Answers

-12 and 2

-12×2= -24

-12+2= -10

At East Coast Dogs, 9 of the last 18 customers wanted mustard on their hot dogs. Considering this data, how many of the next 8 customers would you expect to want mustard?

Answers

Answer:

9

Step-by-step explanation:

because the paragraph is telling you 9 of the 18 customers want mustard on their hot dog so the paragraph is telling you de answer

Answer:

57

Step-by-step explanation:

First, write the experimental probability as a fraction in simplest form.

P(mustard)

=

mustard

total

=

mustard

mustard+other

=

30

30+10

=

30

40

=

3

4

The experimental probability is

3

4

.

We can predict the outcome of the second set of trials by assuming that the ratio will be the same as in the first set of trials. Write a proportion by setting the two ratios equal to each other, then solve.

3

4

=

n

76

3

4

(476)

=

n

76

(476) Multiply both sides by (476)

376

= 4n Simplify

228

= 4n Simplify

57

= n Divide both sides by 4

You would expect 57 of the next 76 customers to want mustard.

An appliance is for sale at either (a) P15,999 cash or (b) on terms, P1,499 each month for the next 12 months.  Money is 9% compounded monthly.  Which is lower, the cash price or the present value of the installment terms? Explain.​

Answers

Answer:

Cash price

Step-by-step explanation:

The computation is shown below:

The Interest rate per month (r) = (9% ÷ 12) = 0.75%

Now Present value of the monthly payment is

= PMT × {[(1 + rate of interest)^number of years - 1] ÷ rate of interest}

= 1,499 × {[(1 + 0.75%)^12 - 1] ÷ 0.75%}

= 18,748.89

And the cash price is 15,999

So, the cash price would be lower

The cash price would be lower. A further explanation is below.

According to the question,

Interest rate per month,

[tex]r = \frac{9 \ percent}{12}[/tex]

  [tex]= 0.75[/tex] (%)

hence,

The Present value of the monthly payment will be:

= [tex]PMT\times \frac{{(1 + Interest \ rate)^{number \ of \ years} - 1}}{Interest \ rate}[/tex]  

= [tex]1499\times \frac{[(1 + 0.75 \ percent)^{12} - 1] }{0.75 \ percent}[/tex]  

= [tex]18748.89[/tex]

As we can see that the cash price is 15,999. Thus the above answer is right.

 

Learn more:

https://brainly.com/question/4187682

Plzzzz brainlest I swear

Answers

Answer: 8

Step-by-step explanation: on the left chain, there are 5 4’s, so 4 times 5 is 20 Because you know that, subtract it from 60 to only have the W’s values. So 60-20 is 40 and because there is 5 w’s do 40/5 is 8. Therefore, the value of the w’s is 8 and the value of the 4’s is 20

Answer:

1024.

Step-by-step explanation:

4x4x4x4x4= 1024

I hope this is correct and I hope this helps. My apologies if it´s wrong.

I NEED HELP WITH ALL, MUST SHOW WORK!!! will give brainliest to the correct one!!!

Answers

1. 20 squared + 48 squared = 2704
square root of 2704 is 52. Answer: 52 inches.

2. -18 squared + 82 squared = 6400
square root of 6400 is 80 Answer: 80 inches

Hannah put $2,000 in a savings
account. After 2 years she earned
$180 in simple interest. What was her
interest rate?

Answers

Answer:2000/180=11.11 p

Step-by-step explanation:

mark brainliest

4x+15=75 in a number line

Answers

Answer:

x= 15

Step-by-step explanation:

4x+15=75

4x = 60

x = 15

Cuide
A student made a scale drawing of a large block C that will be painted on the wall of the locker room.
10
9
8
7
6
5
4
3
2
1
E
Key
= 0.5 feet
0
1 2 3 4 5 6 7 8 9 10
What is the area, in square feet, of the actual painted C?
12.5
15.5
25
50

Answers

Answer:

Step-by-step explanation:

the wall is 10 by 10    and a block C is painted on it  

I used 22 squares to draw a square - ish block C as large as I could and I

l left a 'frame'  of unpainted blocks around C

                         9 by 8  block C   on a    10 by 10  wall

Δ   Δ   Δ   Δ   Δ   Δ   Δ   Δ   Δ

Δ                                    

Δ           

Δ                  THIS IS A TOTAL GUESS     I really need more informaiton

Δ

Δ

Δ                                                    

Δ   Δ   Δ   Δ   Δ   Δ   Δ   Δ   Δ

simplify the following expressions
a) 7x + 2y + x + 3y
b) x + 7y + 10x - 15y
HELP ​

Answers

a) 8x + 5y

b) 11x - 8y

Combine like terms in each expression and you'll get the answer! You can't simplify any further from here, so there's your answer.

A) 7x = 3y+2y. So 7x=5y.

8x -5 = 4x+7



Need answers ASAP and how to do it pls

Answers

8x -5 = 4x+7

8x - 4x = 7 + 5

4x = 12

x = 3

Please help.
Algebra.

Answers

9514 1404 393

Answer:

  8

Step-by-step explanation:

A system of linear equations has no solution when the equations describe parallel lines. Parallel lines have the same slope. In your equation, the slope is the x-coefficient, 8. A parallel line will have a slope of 8.

The second equation will have a slope of 8 if the system has no solution.

There are 320 students in a school.
There are 36 more boys than girls.

What fraction of the students in the school are boys?

Answers

196/320 is fraction


5
An atom silicon is approximately 0.00000000067 Imeters wide. How do you express that number in scientific notation?
A 6.7 x 1010
meters
B 67 x 10-10
meters
© 6.7 x 10-10 meters
11
D 6.7 x 10
meters

Answers

A hhhhhhhhhhnjjjjnnnnnjjkkk

A circle has a radius of 9 cm.
Work out the area of the circle.
Give your answer in terms of pi.

Answers

Radius = 9cm

So,

Area of circle = πr²

= π(9)²

= π × 81 cm²

= 81π cm²

Answer:

254.469 cm

Step-by-step explanation:

area = πr^2

π × 81 = 254.469005 rounded to 254.469 cm

in other terms, 81π cm^2

5√13^9 please help me and thank you​

Answers

this one is a big answer, i got 142805/13

Answer:

3/19

Step-by-step explanation:

Use trigonometric ratios to solve the right triangle. Pls Help

Answers

sin60=DF/FE
Root 3/2= DF/ 18 Root 3
DF= 18*3/2
DF= 27 units

cos60=DE/FE
1/2=DE/18 Root 3
DE= 18 Root 3/2
DE= 9 Root 3 units

for ssc
1: a man walks 7km in 2 hours and 2 km in 1 hour in the same direction.what is the man's avarage speed for the whole joumey?
salamat po kong sino makaka sagot​

Answers

Answer:

Average speed is 3 kilometers an hour

A storé is offering a 20% discount on all items. Write an equation for the relationship between the discount price of an item, d, and its original price, p.


HELP THANK S

Answers

Answer:

There are many ways you can write this as an equation:

[tex]d=p-20 %[/tex]%

[tex]d=.8p[/tex]

[tex]d=p-.2p[/tex]

somebody help I need your help​

Answers

Answer:

a

Step-by-step explanation:

sorry if im wrong

Answer:

hsdcfvjfcdn cfv bb

Step-by-step explanation:dvbvgfdsxdcfvfcdsdxc

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