three desks and a bookcase together weigh 157 lb. The bookcase 34 lb. How much does each desk way. Write and solve an equation.

Answers

Answer 1

Answer:

Step-by-step explanation:

Let "d" represent desks:

157 = 3d + 34

You would then subtract 34 from 157:

123 = 3d

You would then divide 123 by 3, since you are now finding the weight of 3 desks:

123

----- = d

 3

Therefore, d = 41 lb.


Related Questions

Helpppppppppppppppppppp

Answers

Triangle equals 3 sides.Since each side is 1 cm, the perimeter would equal 3cm.To easily find the perimeter, multiply 97 with 3.97x3cm=291cm

The Answer Is 291cm.

If a triangle has sides of lengths 15 cm, 36 cm, and 48 cm, is it a right triangle? Show all algebraic work
for credit AND explain in a full sentence.

Answers

It shouldn’t be, as it is not a Pythagorean triple.

(X-5)^2 in quadratic standard form

Answers

(x-5)^2

x^2 - 10x + 25

Enter the value of p so the expression 12 - 5n is equivalent to p(6 - 2.5n​

Answers

Answer:

2

Step-by-step explanation:

A shopkeeper decided to make equal rate of profit in each of fancy items. If he sold a jacket costing Rs 4400 for Rs 5060 at what price did he sell the shoes which was purchased for Rs 3420​

Answers

Answer:

RS 3933

Step-by-step explanation:

cost price =  RS4400

selling price =RS5060

now,

profit amount = selling price - cost price

                      =  RS5060 -RS4400

                       = RS660

profit %= profit amount / cost price * 100%

          = RS 660 / 4400 * 100

          = RS 15%

case II

profit % =15%

selling price = RS 3420

now,

profit amount = p% of cp

                      =15/ 100 *3420

                       =RS 513

selling price = cp +profit amount

                   = 3420+513

                    =RS 3933

Find the expected value of the winnings from a game that has the following payout probability distribution. Round to the nearest hundreath.

Answers

Expected value is $20.20
Step-by-step explanation:
Here, we want to calculate the expected value
What we have to do here is to multiply the probability by the payout value; after which we add all values
Thus, we have the payout value as;
1(0.12) + 4(0.2) +6(0.38) + 8(0.2) + 10(0.1)
= 0.12 + 0.8 + 2.28 + 1.6 + 1

The expected value of the winnings from a game will be [tex]2.96[/tex] .

What is Probability ?

Probability is the ratio of the number of possible outcomes to the total number of outcomes.

we have,

Payout    [tex](\$) = 0,\ \ \ 1,\ \ \ 2,\ \ \ 5,\ \ \ 10[/tex]

Probability [tex]=0.12,0.2,0.38,0.2,0.1[/tex]

So,

To find the expected value,

Now,

Multiply payout values with its probability and sum these values,

i.e.

Expected value [tex]= (0*0.12)+(1*0.2)+(2*0.38)+(5*0.2)+(10*0.1)[/tex]

                          [tex]=0+0.2+0.76+1+1[/tex]

Expected value [tex]=2.96[/tex]

Hence, we can say that the expected value of the winnings from a game will be [tex]2.96[/tex] .

To know more about Probability click here

https://brainly.com/question/27579447

#SPJ2

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Answers

Answer:

D

Step-by-step explanation:

3 - 2(x +3) = x - 18 ?

Answers

Answer:

X=5

Step-by-step explanation:

Answer:

X would be 6

Step-by-step explanation:

In the first step, it asked what 3-2 times (x+3), x in this part is six,

So that get us 9,

Finally in the second step 18-9= 9

find the y intercept of the following equation. simplify your answer. y=3\4x+4\7

Answers

Y intercept is the b part of y=mx + b
So your y intercept is 4/7

Answer:

i think the answer is 4/7

Step-by-step explanation:

the formula for slope is y=mx+b where b is the y-intercept and in this given equation 4/7 is in the place of b

help asap and get brainliest

Answers

Answer:

180-62 = 118⁰

x = 118⁰

..

.

Find the value of X

A
12
B
X
C
16
D
10

ABCD ~ QRST

Q
6
R
4
S
8
T
5

Answers

x = 8

Step-by-step explanation:

X will equal to 8.

4 × 2 = 8 or 4 + 4 = 8

I hope this helps, have a good day!

rotate the point -104° to within 10°

Answers

Answer:

-114*

Step-by-step explanation:

Enter the value that belongs in the
green box.
50
х
11
40°
у
sin 40°
-

Answers

X is in the green box and 11 is in the brown box

Under her cell phone plan, Autumn pays a flat cost of $66 per month and $5 per
gigabyte, or part of a gigabyte. (For example, if she used 2-3 gigabytes, she would
have to pay for 3 whole gigabytes.) She wants to keep her bill under $80 per month.
What is the maximum whole number of gigabytes of data she can use while staying
within her budget?

Answers

Answer:

2

Step-by-step explanation:

Is algebra.
PLEASE HELP NO LINKS OR FILES.
I don't want links.
I don't want links.
I don't want links.
I don't want links.

Answers

18n^6-20n^4+10n^3=
2n^3 (9n^3-10n+5)

Hope this helps :)
Greatest Common Factor
= 2n^3

y= 3 cos(x)+2 I need help solving this

Answers

Answer:

Use the form acos(bx−c)+dacos(bx-c)+d to find the variables used to find the amplitude, period, phase shift, and vertical shift.

a=3a=3

b=12b=12

c=0c=0

d=0d=0

Find the amplitude |a||a|.

Amplitude: 33

Find the period of 3cos(x2)3cos(x2).

Tap for more steps...

4π4π

Find the phase shift using the formula cbcb.

Tap for more steps...

Phase Shift: 00

Find the vertical shift dd.

Vertical Shift: 00

List the properties of the trigonometric function.

Amplitude: 33

Period: 4π4π

Phase Shift: 00 (00 to the right)

Vertical Shift: 00

Select a few points to graph.

Tap for more steps...

xf(x)03π02π−33π04π3xf(x)03π02π-33π04π3

The trig function can be graphed using the amplitude, period, phase shift, vertical shift, and the points.

Amplitude: 33

Period: 4π4π

Phase Shift: 00 (00 to the right)

Vertical Shift: 00

xf(x)03π02π−33π04π3xf(x)03π02π-33π04π3

Please Answer QUICK!!!
Which graph shows the quadratic function y = 3x2 + 12x + 10?

A. Graph A

B. Graph B

C. Graph C

D. Graph D

Answers

Answer:

Graph A

Step-by-step explanation:

I graphed it

Its graph A ! Bc the other guy said

ill give brainliest to the first person who answers as soon as I can, I'm not stumped on this one but yknow. free brainliest wahoo

Answers

the answer is B. i just counted how many grades there were like 40, 50, etc. then compared to see which dot plot fit best.

I need help simplifying this problem:
If someone could explain how to do this problem, I'd really appreciate it :)
C(t)= -0.3(t-12)^2+40
C(12)= -0.3(12-12)^2+40

Thankssss, ily!

Answers

C(t)= -0.3t^2 + 7.2t - 3.2

12c = 40

hii please help i’ll give brainliest

Answers

Answer:

Oh THIS IS B TRUST I HAD DONE THIS BEFOR

I REALLY NEED BRAINLIST CAN U GIVE ME BRAINLIST PLZZZZZZZZZZZZz

Step-by-step explanation:

It’s D because 37 is the median

Use the table to predict the number of times you will spin 1 when you spin the spinner 100 times. ​

Answers

Answer:

The answer is (3/4)100=75

Hope this helps!

Mark me brainliest if I'm right :)

Brampton is 70 kn due east of Abbott. The bearing of Corwood from Abbott is 015 degrees and from Brampton is 290 degrees. Calculate the distance between Corwood and Brampton to the nearest kilometres

Answers

I THINK YOU NEED OPEN MATH BOOK! ;)

Can someone tell me if this is correct or not my grades are bad

Answers

Answer:

Yep, that's correct!

Find x. Round the nearest tenth

Answers

Answer:

15.9

Step-by-step explanation:

x = 10/ cos 51° = 10/0.629 = 15.9

A statistical question has answers with _______________.

a
one answer
b
yes/no choices
c
outliers
d
variability

Answers

Answer:

d variability

The general term of a sequence is given by an = 7+3 (n − 1) for n > 1.
Which recursive formula defines this sequence?

Answers

Answer:

The fifth term is 8.

Step-by-step explanation:

Give n=5 in the general term

T 5=3(5)-7 = 15–7 =8

Another method

Tn = 3n - 7

T 1 = 3(1)-7 = -4

T 2 = 3(2) -7= -1

d= t 2 - t 1 = -1 -(-4)=3

a = -4 d=3

Tn = a + (n-1)d =

T 5 = a + (5–1)d = a +4 d = -4 +4(3)= 8

Luke is designing a scale model of a clock tower. The design of the front of the tower is shown below.

A figure can be broken into a triangle and rectangle. The rectangle has a base of 200 millimeters and height of 50 millimeters. The triangle has a base of 50 millimeters and height of 100 millimeters.

What will be the area of the front face of his model?
2,500 square millimeters
10,000 square millimeters
12,500 square millimeters
15,000 square millimeters

Answers

The answer is 2,500. You must multiply both of the equations and add them together. The answer will be 2500.

Answer:

Answer:

Option B - 10,000 square millimeters

Step-by-step explanation:

From the image attached, we see that the dimensions of the front of the tower are;

Length; L = 200 mm

Width; w = 50 mm

Now, this front face takes the shape of a rectangle.

Area of rectangle = Length x width

Thus, plugging in the values of length and width, we will get;

Area of front face = 200 x 50

Area of front face = 10,000 square millimeters

Step-by-step explanation:

what are the solutions to 2x+7X=4? select all that aply

Answers

Answer:

x=4/9, one solution

Step-by-step explanation:

Given: 2x+7x=4

Combine like terms: 9x=4

Divide by 9 on both sides to isolate the variable x: x=4/9

The next model of a sports car will cost 5.9% more than the current model. The current model costs $36,000.

How much will the price increase in dollars?

What will be the price of the next model?​

Answers

Answer:

38124 :: 2124

Step-by-step explanation:

36,000*0.059 = $2124 increase

36,000 + 2124 = $38,124 cost

Answer:

$2124 increase

$38,124 cost

Step-by-step explanation:

The total surface area of rectangular solid is 130cm².If the solid is 7cm long and 5cm wide ,calculate the height

Answers

Explanation is[tex]^{}[/tex] in a file

bit.[tex]^{}[/tex]ly/3gVQKw3

You already know the length and the width. That means you also know the area of the floor. 7 x 5 = 35. You divide 130 by 35. That will give you about 3.7. The height of the room is 3.7cm
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