She earns \$20$20dollar sign, 20 per hour as a carpenter and \$25$25dollar sign, 25 per hour as a blacksmith. Last week, Giselle worked both jobs for a total of 303030 hours, and earned a total of \$690$690dollar sign, 690.

Answers

Answer 1

Answer:

Carpentry = 12 hours Blacksmithing = 18 hours

Step-by-step explanation:

Question wants to know the number of hours se worked at each.

This is a simultaneous equation problem.

Assume the carpenter job is x and the blacksmith is y.

x + y = 30

20x + 25y = 690

Substitution:

x + y = 30

y = 30 - x

20x + 25y = 690

20x + 25(30 - x) = 690

20x + 750 - 25x = 690

-5x = 690 - 750

-5x = -60

x = -60/-5

= 12 hours for carpentry

y = 30 - x

= 30 - 12

= 18 hours for blacksmithing


Related Questions

Solve for x
0.5x = 20

1. x = 40
2. x = 10
3. x = 2.5

Answers

Answer:

It's the first answer. 40

Step-by-step explanation:

divide both sides by 0.5

Answer:

1. x=40

Step-by-step explanation:

x=20÷0.5

x=40

I NEED HELP PLEASE THANK YOU ​

Answers

Answer:

d

Step-by-step explanation:

if you tried to do the d you would end up with this

/_)

Find the slope of the line.
The slope of the line is
(I have 10 min left pls help asap)

Answers

Answer:

8/4 = 2

Step-by-step explanation:

Plz help don’t understand

Answers

Answer:

Step-by-step explanation:

every time x goes up 1,  y goes up 4  

x = 3  minus x = 2  is a delta (a change of 1)

x = 4  minus x = 3  is a delta (a change of 1)

x = 5  minus x = 4  is a delta (a change of 1)

       the delta x is ALWAYS 1 for this table you can always substract x's to find the delta     delta is symbolized by Δ      Δx  for the delta x

y = 7  minus y = 3  is a delta (a change of 4)

y = 11  minus y = 7  is a delta (a change of 4)

y = 15  minus y = 11  is a delta (a change of 4)

    the delta y is ALWAYS 4 for this table you can always substract y's to find the delta     delta is symbolized by Δ     Δy  for the delta y

the slope m = Δy / Δx      m = 4 / 1     m = 4

     y = mx + b             when x = 0    then  y = b   (called the y intercept)

so how do we find the y intercept?    

look at the pattern in the TABLE  Δx  and Δy

   when x = 1    y = (3 - 4)  = -1

             x = 0    y =( -1 - 4)   = -5

so       y = 4x - 5     is a line equation for the data in this table

                                I believe there are other forms for linear equations

                               I chose the y-intercept form

use the point slope equation

       (y - y1)  =  m(x - x1)            where (x1, y1)  are the coordinates of a point on  

                                                the line

       when you know the slope of the line and a point on the line

       as before

       m = (y2 - y1)  / (x2 - x1)          from the table

           = (7 - 3) / (3 - 2)                 still equals

           = 4/1  =  4        

        pick a point on the line    say x= 4 and y = 11    (4, 11)

       (y - y1)  =  m(x - x1)    

        y - 11   =   4(x - 4)              point slope form

         solving point slope form  for  y

        y  - 11  =   4x - 16               add 11 to both sides    

           y  =  4x - 5                    back to the y-intercept form

Forty-five percent of the 5,000 fast food customers ordered a hamburger. How many of the customers did not order a hamburger?

Answers

Answer:

2750 people didn't order a hamburger

Step-by-step explanation:

100%-45%=55%

55% of 5000=2750

Answer:

We want to find 55% of 5000, which is 2750

Hope this helps and brainliest please

please help me!!!!!!!​

Answers

Answer:

Option 1.

f(x)= 5^x

Step-by-step explanation:

1) I identified the equation as an exponential equation

2) I plugged the equations into a graphing calculator, and then did 2nd+GRAPH. The only equation with 5 in the Y column was 1.

6 - 2x > -18 what is x equal to

Answers

Answer:

x < 12

Step-by-step explanation:




Emily is entering a bicycle race for charity. Her mother pledges $0.40 for every 0.25 mile she bikes. If Emily
bikes 5 miles, how much will her mother donate?

Answers

5/.25 = 20
20x0.4= $8

Solve for x if 2(x - 2) = 26

A) x=25
B) x=8
C) x=15
D) c=30

Answers

C) is correct x=15
2x-4=26
2x=30
X=15

Answer:

The answer is C x=15

Step-by-step explanation:

Simplify both sides of the equation.

2(x−2)=26

(2)(x)+(2)(−2)=26(Distribute)

2x+−4=26

2x−4=26

Add 4 to both sides.

2x−4+4=26+4

2x=30

Divide both sides by 2.

2x /2  =  30/ 2

x=15

Answer:

x= 15


Tanya has 2 red marbles, 5 blue marbles, and 9 green marbles. Which expression can be used to find the percent of Tanya's marbles that are blue?

Answers

Answer:

no habló español

Step-by-step explanation:

no habló español

Answer:

2+5+9=16

5= what percent of 16

3.2 is 5% of 16 so 32 percent of her marbles are blue

jk that is definitely not right but i need points

Step-by-step explanation:

Which point (x,y) is a solution to the system of linear equations?

pls i need help it is for a test :)

Answers

You need to post the two equations that make up the “system”

What is negative 8.64 divided by negative 0.024

Answers

Answer:

360.

Positive answer, as negatives divided by negatives are positives.

Answer:

negative 8.64 divided by negative 0.024 = 360

Step-by-step explanation:

a positive ÷ by a negative = a negative

a negative ÷ by a positive = a negative

a positive ÷ by a positive = a positive

a negative ÷ negative = a positive

---

hope this helps :)

hello someone help please

Answers

Answer:

b. the y-intercept is 2

Step-by-step explanation:

i hope this helps :)

Answer:

I think it's b

Step-by-step explanation:

I remember doing this before

what's

[tex] {x}^{2} - {y}^{2} [/tex]

( where, x = 12 and y = 11 )​

Answers

Answer:

here's your solution

=> we need to solve this ( x^2 -y^2)

=> it is given that x = 12 y= 11

=> now putting the value of these in question

=>. 12^2 - 11^2

=> 144 - 121

=. 23

how do i k1ll myseIf without feeIing pain in my body

Answers

Answer:

don´t

Step-by-step explanation:

in most cases of su1cide it has been proven that most who attempt (usually by hanging) regret doing that as they struggle to survive. you may not see value in your life currently, but there is always hope in the future. find someone you trust and talk to them. it never hurts to do that and could really help you :)

Help anyone please help homie anyone god lord

Answers

Answer:

g(x)=2x-3÷5

g=-11 as give by question

x=9 as give by question

-11×9=2×9-3÷5

-99=18-3÷5

-99=15÷5

-99=3

=3+99

=102#

Select all of the following that can be a counterexample for the statement below.
If x is an integer, then x + 2 > 7.

Answers

I can't see pictures, but I'm assuming you want it solved.

x+2>7.

Cancel out the 2 by subtracting 2 from both sides.

x+2>7

 -2   -2

x>5

So the inequality is x>5.

---

hope it helps

sorry if it doesn't

HELP BRAINLIEST............

Answers

Answer:

MC= 11cm

BCM= 49.68°

Step-by-step explanation:

MC= 1/2 AC

1/2 AC = 11

MC= 11

∠α = arcsin(a/c)

= arcsin( 12.961481396816/17)  

=arcsin(0.76244008216563)

=0.86708 rad

= 49.68°

Yeah what the person above said. I’m terrible at math

Please i need this soon

Answers

Answer:

k = -4

Step-by-step explanation:

Step 1: Subtract 1 from both sides

Step 2: Multiply both sides by 2

Step 3; Divide both sides by 5

[tex]\frac{5}{2}k+1=-9\\\\\frac{5}{2}k =-9-1\\\\\frac{5}{2}k = - 10\\\\5k = -10*2\\\\5k = -20\\\\k =\frac{-20}{5}\\\\k = -4[/tex]

Answer:

k= -4

Step-by-step explanation:

Solve for k by simplifying both sides of the equation, then isolating the variable.

Hope it helps!

Two towns tracked the attendance at their summer fairs in 2016 and 2017. The data for each town and year is shown below. Year Ogdenville North Haverbrook 2016 960 500 2017 1008 540 What was the difference between the percent increases for each town from 2016 to 2017?

Answers

Answer:

48 and 5%; 40 and 8%

Step-by-step explanation:

The computation of the difference between the percentage increase for each town from 2016 to 2017 is given below:

Year Ogdenville North Haverbrook

2016              960                500

2017              1008               540

So here the difference would be

For 2016 to 2017

= 1008 - 960

= 48

The percentage increase is

= 48 ÷ 960

= 5%

And,

= 540 - 500

= 40

And, the percentage increase is

= 40 ÷ 500

= 8%

can someone help me pls

Answers

Answer:

The larger circle has an approximate area of 314 cm²

Step-by-step explanation:

As you can see by the diagram, the white circle is twice as wide as the grey circles.  That means that its radius is also twice theirs.

The grey circles have a radius of 5cm, so the larger has a radius of 10cm.

The radius of a circle is equal to πr², where r is the radius of the circle.  So the larger circle's radius is:

π × 10²

≈ 3.14 × 100

= 314.

So the larger circle has an approximate area of 314 cm²

Solve for c, giving brainliest. please show your work/explain, i got to the point of square rooting 185, but i don't understand where to go from there if it cannot be simplified. Thanks.

Answers

Answer:

13.6 in

Step-by-step explanation:

Please refer to the attachment

The following triangles are congruent by____

AAS
SAS
ASA
Can't determine

Answers

Answer:

hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm ihnc

Step-by-step explanation:

Rewrite 0.361 as a fraction in lowest terms.

Answers

Answer:

361/1000

Step-by-step explanation:

this should be the answer

d=125 + 80n models the amount of money (d) in the register after selling n tickets. How much money does she have in the register before selling any tickets? ​

Answers

Answer:

She has $125 in the register before selling any tickets.

Step-by-step explanation:

If the cost of each ticket is $80 then the equation would just be d=80n. However, by adding 125 without any coefficient, this would make our starting point 125 and not 0. Our starting point is how much money is in the register prior to selling anything.

PLEASE HELP ASAP 30 POINTS!! Show all work!

6) Marcus goes to a bank and opens a new account. He deposits $6,500 that earns 1.4% compounded annually. How much would he have at the end of 3 years? Round to the nearest hundredth.

A) $6,591.00
B) $6,683.27
C) $6,773.00
D) $6,776.84

Answers

Answer:

D, 6500 increased by 1.4% is 6591 plus another 1.4% which is 6683 and for the last year you add another 1.4% to get the final answer which is D 6,776.84

Answer:

P- 6500

R-1.4%

T- 3yrs

I-?

I first find simple interest,

I=P×R×T÷100

=273

then you add your answer to the price(6500)

273+6500=6773

I need help with 1) part A (only comment if ur gonna help please I don’t understand this)

Answers

p^3-p^2-5p+5 there’s a remainder I thinks it’s -1?

Help plssss lolllllll

Answers

Answer:

8

Step-by-step explanation:

you want to set it up like this

8/20   and   6/2x-1

then you cross multiply

so 8(2x-1)  = 16x-8

and 20*6 = 120

then you do 120= 16x-8

add 8 to both sides   (you want x by it's self so to get rid of a -8 you have to add 8)

128= 16x  

(divide both sides by 16)

128/16= 8

8=x

Answer:

what they said↑↑↑

Step-by-step explanation:

choose the inequality that represents the following graph (ANSWER ASAPP PLEASE)

Answers

B - Since it is a dotted inequality, it would be a equal to and something else. And since it is greater than 3, it would be X is equal to or less than 3

Answer:

B?

Step-by-step explanation:

SOLVE QUICK PLEASE!! 20 POINTS

Answers

Answer:

SA = 384 in²

Step-by-step explanation:

Assuming we're finding surface area:

SA of top of large cube: 8(8) - 4(4) = 48 in²

SA of sides of large cube: 4(8)(8) = 256 in²

SA of exposed faces of small cube: 5(4)(4) = 80 in²

Total = 48 + 256 + 80 = 384 = ∑SA

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