Albert bought 9 pounds of fish at a grocery store at $5 per pound for salmon and $3 per pound for catfish. He spent a total of $37 on the salmon and catfish. This can be represented using the following system of equations:5s +3c = 37 s + c = 9 How many pounds of salmon did Albert purchase?

Answers

Answer 1

Answer:

5 pounds

Step-by-step explanation:

To find that we simply solve the system of equationsSo make c the subject of the formula of equation 2[tex]s+c=9\\c=9-s[/tex] Substitute in equation 1 [tex]5s+3c=37\\5s+3(9-s)=37\\5s+27-3s=37\\5s-3s+27-(27)=37-(27)\\2s=10\\s=5[/tex] so that's 5 pounds of salmon

Related Questions

can someone find the measures of angle 1 & 2?

Answers

Answer:

angle 1 equals 55 and angle 2= equals 115

Step-by-step explanation:

the middle angle is 125 so than you add 63+__ which is 62 so than the last angle to make 180 is 55(angle 1) than angle 2 10+__=125 so ___=115 than the last angle will be 55

Answer:

1) 62°

2) 115°

Step-by-step explanation:

Angle 1)

QRP= 180°-125° (adjacent angles on a straight line)

= 55°

angle 1= 180°-63°-55° (sum of angles in a triangle)

= 62°

Angle 2)

SRT= QRP (vertically opposite angles)

= 55°

angle 2= 180°-10°-55° (sum of angles in a triangle)

= 115°

what is the value of p?​

Answers

Answer:

p = 22

Step-by-step explanation:

External angle theorem

External angle = int opp angle + int opp angle 2

5p = 2p + 21 + 45

5p-2p = 66

3p = 66

p = 22

Hi guys i need help with this problem y=mx+b

Answers

y = how far up

x = how far along

m = Slope or Gradient (how steep the line is)

b = value of y when x=0

How do you find "m" and "b"?

b is easy: just see where the line crosses the Y axis.
m (the Slope) needs some calculation:
m = Change in Y/change in X

If angle MNO is a rectangle, and MO = 54 , what is the length of overline NP ? A. 34 B. 22 C. 18 D. 108 E. 27 F. Cannot be determined

Answers

Answer:

Option (E)

Step-by-step explanation:

LMNO is a rectangle.

MO = 54

By the property of a rectangle,

1). Diagonals are equal in length.

2). Diagonals equally bisect each other.

Since, MO = LN

Therefore, LN = 54

Since, NP = [tex]\frac{1}{2}(LN)[/tex]

NP = [tex]\frac{54}{2}[/tex] = 27

Option (E) will be the correct option.

Answer:

E ;27

Step-by-step explanation:

Deni made $100 yesterday at work. His boss gave him $20 for showing up, and Deni makes $10 for every hour he works. How many hours did Deni work?
HOW DO I SHOW MY WORK

Answers

Answer:

write it out

Step-by-step explanation:

if he got 20 for showing up, you subtract to from the total right away, so now you have 80 total, and at a rate of 10/hr, he must have worked 8hrs. (80/10)

Answer:

Deni worked 8 hours yesterday

Step-by-step explanation:

Write a different expression that has the same quotient as (−3)/8 and −(3/8) .
30 POINTS!!!!!!!!!!!!

Answers

Answer: its also -3/4 in standard form -0.75 as a decimal

Step-by-step explanation: i think i knew what u meant

Answer:

3/(-8)

Step-by-step explanation:

(-3)/8 = -(3/8) =3/(-8) = - 0.375

Select the correct solution set.

50 ≥ 15x

{x | x ≤ 10/3}
{x | x ≥ 10/3}
{x | x > 10/3}

Answers

2nd option I’m pretty sure but it’s been awhile since I took this math

Y0UR M0MWY 100KS L1KE TH1$

Answers

Answer:

NICE!!!

Step-by-step explanation:

PLEASE HELP PLEASEE!!!!!!!!!!!!!!

Answers

Answer:

B

Step-by-step explanation:

Answer:

B.) 17

Step-by-step explanation:

parallel to the line y
- 2x + 3 through (0,5)

Answers

Answer:

Y = 2x + 5  

Step-by-step explanation:

The tens digit of a two digit number is five more than the units digit. Seven times the sum of the digits of this number is 3 less than the number itself. Find the number.

Answers

Answer:

94

Step-by-step explanation:

Let the unit's digit = [tex]y[/tex]

Let the ten's digit = [tex]x[/tex]

Then the number will be equal to [tex]10x+y[/tex]

Now, using the given statement:

[tex]x=y+5 ..... (1)[/tex]

[tex]7(x+y) = 10x+y-3\\\Rightarrow 7x+7y=10x+y-3\\\Rightarrow 6y-3x=-3 ..... (2)[/tex]

Now, using the equation (1) in equation (2):

[tex]6y-3(y+5) =-3\\\Rightarrow 3y-12=0\\\Rightarrow y =4[/tex]

By equation (1):

[tex]x = 4+5 \\\Rightarrow x =9[/tex]

Therefore, the number is :

[tex]10x+y= 10\times 9 +4 = \bold{94}[/tex]

what is the average value of the stocks if stock a is $420.15 and Stock B is $518.38 and stock C is $99.70​

Answers

Answer:

C

Step-by-step explanation:

need help with 7 and 8 please

Answers

Step-by-step explanation:

7.D -2,-1,0,1,2,3,4

8.C

what is the distance between points (9,-7) and (9,4) on a coordinate plane​

Answers

Answer:

11

Step-by-step explanation:

The distance formula is d=√x2 - x1²+ y2 - y1².

The first thing to do is substitute the numbers we have into this formula.

d=√9 - 9²+ 4 - -7²

d=√0² + 11²

d = d=√0 + 121

d = d=√121

d = 11

I hope this answer helped you, please mark it brainliest if it did :)

does 9, 16, 5 make a right triangle? Explain

Answers

Answer:

By virtue of the Pythagorean Theorem, in a right triangle the sum of the squares of the smaller two sides equals the square of the largest side.

It does not make a right triangle. 9^2 + 5^2 = 106 while 16^2 = 256. So it is not same.

Thank you and please rate me as brainliest as it will help me to level up

No please mark as brainlist and follow me

The equation for line 1 is

Answers

Answer:

y=1x-5

Step-by-step explanation:

Answer:

The equation for line one is y = -2x - 5

Mae Ling earns a weekly salary of $375 plus a 7.0% commission on sales at a gift shop. How much would she make in a work week if she sold $4,600 worth of merchandise?

Answers

Answer:

$697

Step-by-step explanation:

Given that :

Weekly earning = $375 plus 7% commission on sales

Earning if she sold $4600 worth of merchandise

Commision on sales = 7% of 4600

Commission = 0.07 * 4600

Commission on sales = $322

Total earning = $375 + $322

Total earning = $697

I NEED HELP first awnser gets brainliest

Answers

I believe it a not sure but seems more reasonable

determine the number of solutions, y=x+2 and x=-1

Answers

There is only one solution.

y = x+2

x = -1

Substitute x = -1  in y = x+2

y=-1+2

y = 1

We only get the single value of y and x so It's clear that there's only one solution.

Larry mows lawns for $50 an hour. Last week, he gave all his customers a 20% discount off his hourly rate. Mrs. Grinnell hired Larry last week to mow her lawn, and Larry applied a 10% new customer discount to his already discounted rate. If Larry worked on Mrs. Grinnell's lawn for 3 hours, how much does Mrs. Grinnell owe Larry?

Answers

Answer:

If Larry worked on Mrs. Grinnell's lawn for 3 hours, Mrs. Grinnell would owe Larry $108.

Step-by-step explanation:

You have to find the total amount Larry would receive with $50 an hour:

$50*3=$150

Now, you have to calculate the amount with a 20% discount by calculating the 20% of $150 and subtracting that amount from $150:

$150*20%=$30

$150-$30=$120

Then, you have to calculate the 10% of $120 and subtract that amount from $120:

$120*10%=$12

$120-$12=$108

According to this, the answer is that if Larry worked on Mrs. Grinnell's lawn for 3 hours, Mrs. Grinnell would owe Larry $108.

GIVING BRAINLIEST How many solutions does this
parabola have?

Answers

Answer:

2 solutions

Step-by-step explanation:

Given the graph of a parabola , then the solutions are the values of x on the x- axis where the graph crosses the x- axis.

The graph crosses the x- axis at x = - 2 and x = 2

Thus there are 2 solutions

The parabola has two solutions or roots.

In general, a quadratic equation represented by a parabola can have zero, one, or two solutions. The number of solutions depends on the discriminant of the quadratic equation. If the discriminant is positive, the quadratic equation has two distinct solutions. If the discriminant is zero, it has one solution (a double root). If the discriminant is negative, it has no real solutions.

In this case the graph of a parabola cuts the x-axis two times, it means that the parabola has two x-intercepts or solutions. In other words, the equation representing the parabola will have two distinct real solutions. The x-intercepts are the points where the parabola intersects the x-axis, and they correspond to the values of x for which the y-coordinate is zero.

Therefore, in this case, the parabola has two solutions or roots.

Learn more about parabola here

https://brainly.com/question/34217718

#SPJ6

Graph y= 4/5x-7

Can someone help me with this please

Answers

Since the equation is linear, pick 2 points.
(0, -7), (5, -3)
And plot these points then draw a line through them

true or false?

a. there are 4 terms in the algaebraic
expression
- ( )

b. the algebraic expression can be simplified into X(6y+3)
-( )

c. the value of the algebraic expression when x = -1 and y= 2 is -1
-( )

d. the coefficient of x in the term 4xy is 3
-( )

Answers

Answer:

true, but I'm not sure because i forgot

Answer:

✔ -1 and 1/3

Step-by-step explanation:

i got it right on edge

A circle is represented by the equation x²+y²−8y−20=0. What is the diameter of the circle?

Answers

Answer:

center:(0,4) radius:6

Step-by-step explanation:

The perimeter of a rectangular field is 318 yards. If the width of the field is 74 yards, what is its length?

Answers

318/2=159

159-74=85

the length is 85 yards

Which number should the....

Answers

the answer should be 3 :)

I really need help right now

Answers

Answer:

can you post a better quality pic in the comments>? i cant read it enough

Step-by-step explanation:

A. Y=6x+12
B. Y= 8x+15
C.y=6x+6
D.y=8x+8

Answers

Answer:

y=6x+6 will be the answer

plese help!!!!!!!!!!!!!!!!!!

Answers

Basically subtract the 2 numbers. You’d get 1.7 or 1 7/10

Answer:

           

Step-by-step explanation:

                 

(7x2 − 3)(8x2 − 7x + 5)

Answers

Answer:

231-77x

Step-by-step explanation:

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