1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
natita [175]
3 years ago
5

At competing grocery stores, bananas are 80 cents a pound at the first store and 85 cents a pound at the second store. Apples ar

e 3 dollars a pound at the first store and 2.50 dollars a pound at the second store.
Suppose you buy x pounds of bananas and y pounds of apples at each store. You end up spending 10 dollars at the first store and 12 dollars at the second store.

Which system of equations represents the amount of money you spend on bananas and apples at each store?
Mathematics
1 answer:
jek_recluse [69]3 years ago
7 0

Answer:

0.8x + 3y = 10

0.85x + 2.50y = 12

Step-by-step explanation:

Given :

Spending at first store :

Cost of Banana = 80 cent per pound = 0.80

Cost of apple = $3 per pound

Total amount spent = $10

Pounds of banana = x

Pounds of apple = y

0.8x + 3y = 10 - - - (1)

Spending at second store :

Cost of Banana = 80 cent per pound = 0.85

Cost of apple = $2.50 per pound

Total amount spent = $12

Pounds of banana = x

Pounds of apple = y

0.85x + 2.50y = 12 - - - - (2)

You might be interested in
Refer to the image i couldnt copy it so the image is the quesstion<br><br> answer in true or false
Irina18 [472]

The sign of "b" on the numerator should be negative. So we conclude that the correct option is false.

<h3>Is the equation in the image correct or incorrect?</h3>

For a quadratic equation of the form:

y = a*x^2 + b*x + c

By using the Bhaskara's formula, the solutions of the equation:

0 = a*x^2 + b*x + c

Are given by the formula:

x = \frac{-b \pm \sqrt{b^2 - 4ac} }{2a}

Notice that the sign of the first term on the numerator should be negative, while on the image it is positive.

So the equation shown in the image is incorrect.

If you want to learn more about quadratic equations:

brainly.com/question/1214333

#SPJ1

6 0
2 years ago
Jamisha is solving the equation 4 ( x − 2 ) = 34 for x . Her work is shown in the table.
shtirl [24]

Answer:

Step-by-step explanation:

4x -8 = 34

4x = 42

x = 42/4 = 21/2 = 10.5

3 0
3 years ago
40 is 50% of what number?<br> A. 20<br> B. 40<br> C. 60<br> D. 80
Alex787 [66]

Answer:

D. 80

Step-by-step explanation:

multiply 40 by 2 cause its 50 percent

5 0
3 years ago
Read 2 more answers
Solve for x.<br><br> Help please
MAVERICK [17]
X = 10

The triangles are similar by SAS, so we can set up a proportion of their sides.

9/(33-9) = 12/(3x+2)
9/24 = 12/3x+2

Reduce
3/8 = 12/3x+2

Cross multiply
3(3x+2) = 12*8

Distribute and multiply
9x + 6 = 96

Subtract 6
9x = 90

Divide by 9
x = 10

Check:
9/24 = 12/3x+2
9/24 = 12/3*10 + 2
9/24 = 12/30 + 2
9/24 = 12/32
3/8 = 3/8 :)
4 0
3 years ago
The equation of a circle is (x + 4)2 + (y + 6)2 = 16. Determine the length of the radius.
Viefleur [7K]

Answer:

see explanation

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

(x + 4)² + (y + 6)² = 16 is in this form

with r² = 16 ⇒ r = \sqrt{16} = 4

---------------------------------------------------------------

given (h, k) = (5, 2) and r = 20, then

(x - 5)² + (y - 2)² = 400 ← represents the delivery area


5 0
3 years ago
Other questions:
  • Write the sentence as an equation <br>the sum of m and 188 is 232​
    5·1 answer
  • Factor completely the given polynomial
    5·1 answer
  • I need answers to these problems
    12·1 answer
  • A quantity a varies directly as a quantity b, if, when b changes, a changes in the same ratio. What happens to the quantity a if
    8·1 answer
  • Paula kitten weighs 3 1/2 pounds write this weight using pounds and ounces explain how you found your answer
    15·1 answer
  • A ball is thrown vertically in the air with an initial velocity of 60 feet per second from an initial height of 6 feet. The equa
    15·1 answer
  • Choose the correct solution in roster form.
    10·2 answers
  • Please answer if correct you get brainiest
    5·1 answer
  • Which expressions is not equivalent 2x^2+10x+12?
    10·1 answer
  • A wood board 100 centimeters long. one piece is 26 centimeters longer than the other. what are the lengths of the two pieces?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!